EXHIBIT 10.18

                                    SUBLEASE

                                 by and between

                           BURKE RUBBER COMPANY, INC.,
                            a California corporation


                                  as Sublessor,

                                       and

                           WESTLAND TECHNOLOGIES, INC.,
                            a California corporation

                                  as Sublessee,

                                       at

                 107 South Riverside Drive, Modesto, California.





                                    SUBLEASE

THIS SUBLEASE ("Sublease") is made effective as of this 27th day of June, 1996
by and between BURKE RUBBER COMPANY, INC., a California corporation (the
"Sublessor"), and WESTLAND TECHNOLOGIES, INC., a California corporation (the
"Sublessee") with regard to the following facts:

                                    RECITALS

     A. Sublessor entered into that certain Industrial Lease dated July 1, 
1991 by and between Arthur D. Bridges Family Revocable Trust ("Master 
Lessor"), as "Lessor," and Sublessor, as "Lessee," for the lease of a portion 
of that real property commonly known as 107 South Riverside Drive, Modesto, 
California, consisting of approximately 112,986 square feet (the "Premises") 
and more particularly described in the Master Lease. Such Lease was amended 
by that certain Addendum to Industrial Lease dated as of July 1, 1991 
(collectively, as amended, the "Master Lease"). A copy of the Master Lease is 
attached hereto as EXHIBIT "A" and incorporated herein by this reference.

     B. Substantially concurrently herewith, pursuant to that certain Asset 
Sale Agreement ("Asset Sale Agreement") dated March 15, 1996 by and between 
Sublessor, as "Seller," and Sublessee, as "Purchaser," Sublessor is 
transferring to Sublessee all of Sublessor's right, title and interest in and 
to those certain "Assets" (as defined in the Asset Sale Agreement), which 
Assets are utilized for the business of manufacturing and selling rubber and 
rubber-like custom-molded products at the Premises.

     C. In connection with Sublessor's transfer of the Assets to Sublessee, 
Sublessor desires to sublease to Sublessee, and Sublessee desires to sublease 
from Sublessor, the Premises, upon the terms, covenants and conditions set 
forth in this Sublease.

     NOW, THEREFORE, in consideration of the mutual covenants contained 
herein and for other good and valuable consideration, the receipt and 
sufficiency of which are hereby acknowledged, the parties hereto agree as 
follows:

     1. CAPITALIZED TERMS. All capitalized terms when used herein shall have 
the same meaning as is given such terms in the Master Lease, unless expressly 
superseded by the terms of this Sublease.

     2. SUBLEASE. Sublessor hereby subleases to Sublessee and Sublessee 
hereby subleases from Sublessor, the Premises on an "as-is," "where-is" 
basis, subject to the terms, covenants and conditions set forth in this 
Sublease.

                                      1




     3. TERM. The term ("Term") of this Sublease shall commence on the date 
upon which the "Closing" occurs under the Asset Sale Agreement (the 
"Commencement Date") and shall expire on October 31, 2001, unless sooner 
terminated pursuant to any provision of this Sublease or the Master Lease 
(the "Termination Date").

     4. RENT.

        (a) BASE RENT. Effective as of the Commencement Date, Sublessee shall 
pay to Sublessor, or its designee, as rent for the Premises, monthly payments 
of base rent ("Base Rent"), in advance, on the first day of each month of the 
Term of this Sublease in the amounts set forth under Column C of EXHIBIT 
"A-1". Base Rent and all other payments of rent and other sums under this 
Sublease (collectively, "Rent") shall be payable by Sublessee without notice, 
demand, reduction or set-off in lawful money of the United States of America 
to Sublessor or its agent at the address set forth in this Sublease, or to 
such other person or such other places as Sublessor may from time to time 
designate in writing. If the Term begins or ends on a day other than the 
first or last day of a month, the Base Rent for the partial month shall be 
prorated on the basis of a thirty (30) day month, and if the Commencement 
Date occurs on any day other than the first (1st) day of a calendar month, 
the Base Rent for the first partial month of the Term shall be paid on the 
Commencement Date.

        (b) OPERATING EXPENSES. In addition to the Base Rent and any other 
amounts constituting additional rent hereunder, Sublessee shall pay to 
Sublessor, as additional rent, the portion of the Operating Expenses, 
including but not limited to taxes, utilities, and insurance, which are 
attributable to the Premises during the term of this Sublease. Such 
additional rent shall be payable as and when Operating Expenses are payable 
by Sublessor to Master Lessor. Since the Master Lease gives the Master Lessor 
the option of requiring payment by Sublessor of Operating Expenses on the 
basis of an estimate thereof, as and when adjustments between estimated and 
actual Operating Expenses are made under the Master Lease, the obligations of 
Sublessor and Sublessee hereunder shall be adjusted in a like manner; and if 
any such adjustment shall occur after the expiration or earlier termination 
of the Term, then the obligations of Sublessor and Sublessee under this 
Paragraph 4(b) shall survive such expiration or termination.  For purposes of 
this Sublease, the parties acknowledge and agree that, as of the date hereof, 
"Lessee's Share" of Operating Expenses payable by Sublessor under the Master 
Lease is sixty-three point eight percent (63.8%).

        (c) EXISTING TENANT IMPROVEMENTS. In addition to the Base Rent and 
any other amounts constituting additional rent hereunder, Sublessee shall pay 
to Sublessor, as additional rent on account of the tenant improvements 
heretofore installed by Sublessor in, on and about the Premises, including 
without limitation the Manufacturing Improvements and sprinkler system 
("Existing Tenant Improvements"), monthly payments of $8,600.29, payable on 
the first (1st) day of each and every month commencing on the first (1st) day 
of the first full calendar month following the Commencement Date and 
continuing thereafter on the first (1st) day of each succeeding calendar 
month until the Termination Date, as specified on the payment schedule 
attached hereto as EXHIBIT "B". If the Commencement Date occurs on any day 
other

                                      2





than the first (1st) day of a calendar month, an amount equal to the amount 
of such monthly installment prorated on the basis of a thirty (30) day month, 
shall be paid on the Commencement Date. If this Sublease or the Master Lease 
is terminated earlier than October 31, 2001, (i) as a result of Sublessee's 
default hereunder or under applicable provisions of the Master Lease (a 
"Sublessee Default"), then, upon said termination, Sublessee shall pay to 
Sublessor an amount equal to the entire balance then outstanding on account 
of the Existing Tenant Improvements, as specified on EXHIBIT "B"; or (ii) for 
any reason other than a Sublessee Default, then Sublessee shall remain 
obligated to Sublessor from and after said termination to make monthly 
payments of $8,600.29 until all payments required on Exhibit B have been 
paid. This paragraph shall survive the Termination Date or any earlier 
termination of this Sublease.

     5. SECURITY DEPOSIT. Concurrent with Sublessee's execution of this 
Sublease, Sublessee shall deposit with Sublessor a security deposit (the 
"Security Deposit") in the amount of Twenty One Thousand Three Hundred 
Eighty-One Dollars ($21,381.00) as security for the faithful performance by 
Sublessee of all of its obligations under this Sublease. If Sublessee fails 
to pay rent or other charges due hereunder, or otherwise defaults with 
respect to any provisions of this Sublease, Sublessor may, but shall not be 
required to, apply all or any part of the Security Deposit for the payment of 
any rent or any other sum in default, or for the payment of any amount that 
Sublessor may spend or become obligated to spend by reason of Sublessee's 
default (including without limitation any amounts payable to Master Lessor 
under the Master Lease), or to compensate Sublessor for any other loss or 
damage that Sublessor may suffer by reason of Sublessee's default. If any 
portion of the Security Deposit is so used or applied, Sublessee shall, 
within five (5) days after written demand therefor restore the Security 
Deposit to its original amount. If Sublessee is not in default upon 
termination of this Sublease, said deposit, or so much thereof as has not 
theretofore been applied by Sublessor, shall be returned, without payment of 
interest or other increment for its use, to Sublessee at the expiration of 
the Term, and after Sublessee has vacated the Premises. No trust relationship 
is created herein between Sublessor and Sublessee with respect to the 
Security Deposit. Sublessor shall not be required to keep the Security 
Deposit separate from its general accounts. Sublessee shall not be entitled 
to any interest on the Security Deposit. Sublessee hereby waives the 
provisions of Section 1950.7 of the California Civil Code, and all other 
provisions of law, now or hereafter enforced, which provide that Sublessor 
may claim from a Security Deposit only those sums reasonably necessary to 
remedy defaults in the payment of rent, to repair damage caused by Sublessee 
or to clean the Premises, it being agreed that Sublessor may, in addition, 
claim those sums reasonably necessary to compensate Sublessor from any other 
loss or damage, foreseeable or unforeseeable, caused by the act or omission 
of Sublessee or any officer, employee, agent or invitee of Sublessee.

     6. USE. The Premises shall be used and occupied only for general office 
purposes, sales, manufacturing, warehousing, shipping and support or any 
other use which is reasonably comparable and for no other purposes. All 
provisions of the Master Lease regarding use of the Premises (including 
without limitation Paragraph 6 of the Master Lease) shall apply to the 
Sublessee.

                                      3




     7. MASTER LEASE.

        (a) Sublessee acknowledges that it has read the attached copy of the 
Master Lease and agrees that this Sublease shall be subject and subordinate 
to the provisions thereof. Except as otherwise expressly provided to the 
contrary in this Sublease or except to the extent the provisions of the 
Master Lease are inconsistent herewith or otherwise inapplicable (i) all of 
the rights and obligations conferred or imposed by the Master Lease on the 
"Lessee" thereunder (to the extent the same relate to the Premises) are 
hereby conferred and imposed upon Sublessee and all of the rights conferred 
by the Master Lease upon the "Lessor" thereunder (to the extent the same 
relate to the Premises) are hereby conferred on Sublessor and (ii) the 
provisions of the Master Lease applicable to the Premises are hereby 
incorporated herein by reference as if Sublessor were the "Lessor" and 
Sublessee were the "Lessee" thereunder; provided, however that the time 
limits contained in the Master Lease for the giving of notices, making of 
demands, or performing of any act, condition or covenant on the part of 
Sublessee as "Lessee" under the Master Lease are shortened for the purposes 
of incorporation herein so that in each instance Sublessee shall have two (2) 
business days less time to observe or perform under this Sublease than 
Sublessor has as tenant under the Master Lease, and for the exercise by 
Sublessor as "Lessor" under the Master Lease of any right, remedy or option 
are lengthened so that in each instance Sublessor shall have two (2) business 
days more time to observe or perform under this Sublease than the Master 
Lessor has as landlord under the Master Lease.

        (b) Except as otherwise expressly provided herein, during the Term 
and for all subsequent periods with respect to obligations arising prior to 
the termination of this Sublease, Sublessee shall comply with and perform, 
for the benefit of Master Lessor and Sublessor, all of the terms, covenants, 
conditions and obligations of the "Lessee" under the Master Lease allocable 
or applicable to the Premises. Sublessee shall not do, permit or suffer any 
act, occurrence or omission which if done, permitted or suffered by Sublessor 
would be (with notice, the passage of time or both) in violation of or a 
default by the Lessee under the Master Lease, or could lead in any respect to 
the termination of the Master Lease. If Sublessee shall default or fail to 
perform any of its obligations under this Sublease, other than its obligation 
to pay Base Rent and additional rent and all other charges provided for 
herein to Sublessor, Sublessor, without being under any obligation to do so 
and without thereby waiving such default, may remedy such default or failure 
for the account, and at the expense, of Sublessee, without notice in the case 
of emergency and, in all other cases, after such default or failure continues 
for five (5) days following the date Sublessor delivers written notice to 
Sublessee of its intention to remedy such default or failure, and all costs 
and expenses expended or incurred by Sublessor in connection with the same 
shall be payable by Sublessee to Sublessor within ten (10) days of 
Sublessor's delivery of written demand therefor to Sublessee.

        (c) Sublessee acknowledges that Sublessor is entering into this 
Sublease for the purpose of facilitating the transition from Sublessor to 
Sublessee of the ownership of the "Assets" (as defined in the Asset Sale 
Agreement) and of the operation of the "Business" (as defined in the Asset 
Sale Agreement) as a going concern at the Premises, and agrees that (i) if 
the Master Lease is terminated for any reason whatsoever, this Sublease shall 
immediately be

                                      4




terminated and the parties' rights and obligations hereunder shall cease, 
except as otherwise provided in this Paragraph 7(c); and (ii) in the event, 
at any time after the Commencement Date, Sublessor obtains Master Lessor's 
consent to terminate the Master Lease upon economic and other terms and 
conditions acceptable to Sublessor in its sole discretion, and to enter into 
a new lease ("New Lease") directly with Sublessee for the Premises upon 
economic and other terms and conditions substantially similar to the terms 
and conditions of this Sublease, then Sublessee shall enter into such New 
Lease directly with Master Lessor in which event this Sublease shall be 
terminated and the parties' rights and obligations hereunder shall cease, 
except as otherwise provided in this Paragraph 7(c). Notwithstanding any 
provision of this Sublease to the contrary, if this Sublease is terminated 
for any reason whatsoever earlier than the Termination Date, the parties' 
rights and obligations hereunder shall cease, save and except, (a) 
Sublessor's obligation to return the Security Deposit to the extent provided 
under Paragraph 5, above, (b) Sublessee's obligation to pay all additional 
rent payable on account of the Existing Tenant Improvements to the extent 
provided under Paragraph 4(c), above, and (c) any other obligations of the 
parties hereunder that expressly survive the expiration or earlier 
termination of this Sublease.

     8. EXCLUDED PROVISIONS. Notwithstanding any provision of this Sublease 
to the contrary, the provisions of Paragraphs 3.2, 4.1, 4.2, 5, 15, 17, 39, 
47, 47.1, 47.2, 47.3, 47.4, 48, 49, 50, 51 and 53 and Exhibits A-1 and C of 
the Master Lease are not incorporated into this Sublease and shall not apply 
to this Sublease.

     9. MASTER LESSOR'S PERFORMANCE UNDER MASTER LEASE. Sublessee recognizes 
that Sublessor is not in a position to render any of the services or to 
perform any of the obligations required by Sublessor by the terms of this 
Sublease. Therefore, notwithstanding anything to the contrary contained in 
this Sublease, Sublessee agrees that performance by Sublessor of its 
obligations hereunder are conditional upon due performance by the Master 
Lessor of its corresponding obligations under the Master Lease and Sublessor 
shall not be liable to Sublessee for any default of the Master Lessor under 
the Master Lease. Sublessee shall not have any claim against Sublessor by 
reason of the Master Lessor's failure or refusal to comply with any of the 
provisions of the Master Lease, unless such failure or refusal is a result of 
Sublessor's act or failure to act, and Sublessee shall pay Base Rent and 
additional rent and all other charges provided for herein without any 
abatement, deduction or set-off whatsoever (except to the extent provided for 
in Paragraph 9.5 of the Master Lease). Whenever Master Lessor shall fail to 
perform its obligations under the Master Lease, Sublessor agrees to use 
commercially reasonable efforts to obtain such performance on behalf of 
Sublessee. If Sublessor fails, after using reasonable efforts, to cause the 
Master Lessor under the Master Lease to observe and/or perform its 
obligations under the Master Lease, Sublessee shall have the right, upon 
prior written notice to Sublessor, to bring an action in Sublessor's name to 
accomplish such purpose and Sublessor, upon Sublessee's reasonable request 
and at Sublessee's sole cost and expense, shall reasonably cooperate with 
Sublessee in this regard. Sublessee shall defend, indemnify and hold 
Sublessor harmless from all claims, costs and liabilities, including 
attorneys' fees and costs, arising out of or in connection with any such 
action by Sublessee, unless such actions are required as a result of 
Sublessor's breach of any of its covenants set forth above.

                                      5



     10. MASTER LESSOR CONSENTS. In any case where any event, transaction, 
action or omission contemplated to be taken or omitted by Sublessee requires 
the consent or approval of Sublessor under this Sublease and/or of Master 
Lessor under the Master Lease, it shall be a condition precedent to such 
event, transaction, action or omission that the prior consent or approval of 
Master Lessor shall have been obtained. Sublessee agrees that Sublessor shall 
not have any duty or responsibility with respect to obtaining the consent or 
approval of Master Lessor when the same is required or desired by Sublessee 
other than (i) the transmission in a timely fashion by Sublessor to Master 
Lessor of Sublessee's request for such consent or approval and (ii) 
Sublessor's cooperation with Sublessee to obtain such approval or consent, 
provided that such cooperation does not require Sublessor to pay any sum or 
incur any out-of-pocket expense or to make any material performance or 
undertaking.

     11. NOTICES. Any and all notices, approvals or demands required or 
permitted under this Sublease shall be in writing, shall be served either 
personally, by United States certified mail, postage prepaid, return receipt 
requested or by reputable overnight carrier and, shall be deemed to have been 
given or made on the day on which it was received and shall be addressed to 
the parties at the addresses set forth below. Any party may, from time to 
time, by like notice, give notice of any change of address, and in such 
event, the address of such party shall be deemed to have been changed 
accordingly. The address for each party is:

     
     If to Sublessor:    Burke Rubber Company, Inc. c/o Burke Industries, Inc.
                         2250 South Tenth Street San Jose, California 95112
                         Attention: Rocco Genovese

     If to Sublessee:    Westland Technologies, Inc.
                         107 South Riverside Drive
                         Modesto, California 95354
                         Attention: Thomas Halyburton

     12. BROKERS. Sublessor and Sublessee warrant to each other and to Master 
Lessor that each has had no dealings with any real estate broker or agent in 
connection with the negotiation of this Sublease (the "Broker"), and that 
neither Sublessor nor Sublessee knows of any real estate broker or agent who 
is or might be entitled to a commission in connection with this Sublease. 
Sublessor and Sublessee each hereby agree to indemnify, defend and hold 
harmless the other and Master Lessor from and against any losses, causes of 
action, liabilities, damages, claims, demands, costs and expenses (including 
reasonable attorneys' fees and costs) incurred, or to be incurred, by reason 
of any breach of the foregoing warranty by either party hereto with respect 
to any such dealings with any and all real estate broker(s) or agent(s).

                                      6



     13. SUBLESSOR'S WARRANTIES. Sublessor represents and warrants to 
Sublessee that:

        (a) The Master Lease attached to the Sublease as Exhibit "A" 
constitutes the entire agreement between the Master Lessor and Sublessor 
regarding the Premises, and there are no written or oral amendments or 
modifications thereto;

        (b) Sublessor has not assigned any of its rights under the Master 
Lease to the Premises to any third parties;

        (c) The Master Lease is in full force and effect and, to Sublessor's 
knowledge, neither Sublessor nor the Master Lessor is in default under the 
Master Lease; and

        (d) All rents and monetary or other obligations required of Sublessor 
to be paid to Master Lessor or required to be performed by Sublessor pursuant 
to the Master Lease have been paid by or performed by Sublessor through the 
date of execution of this Sublease.

     14. SUBLESSOR'S COVENANTS. Sublessor covenants to Sublessee that:

        (a) As long as Sublessee is not in default under the Sublease, 
Sublessor shall make all monetary payments to the Master Lessor which 
Sublessor is obligated to make pursuant to the Master Lease, subject to any 
and all cure periods, defenses, offsets and/or other good faith claims which 
Sublessor may have, whether at law or equity, or under the terms and 
provisions of the Master Lease; and

        (b) Sublessor shall, using its best efforts and diligence given the 
time constraints involved, send copies to Sublessee of all material notices 
or other correspondence applicable to the Premises either sent or received by 
Sublessor in connection with the Master Lease.

     15. ALTERATIONS AND ADDITIONS. Sublessee shall comply with the 
provisions of the Master Lease incorporated herein that relate to alterations 
and additions, including without limitation the obligation to remove and 
restore any and all alterations, improvements, additions or Utility 
Installations at the expiration of the term and to restore the Premises to 
its prior condition (as of the commencement of the Master Lease); provided, 
however, that Sublessee shall not make any alterations, improvements, 
additions or Utility Installations in, on or about the Premises, whether 
interior or exterior, structural or nonstructural, where the total cost 
thereof is more than Twenty Thousand Dollars ($20,000.00) or the aggregate 
cost over any twelve (12) month period is more than Fifty Thousand Dollars 
($50,000.00), unless approved in advance in writing by Sublessor, which 
approval shall not be unreasonably withheld.

     16. INSURANCE PROCEEDS AND AWARDS. Notwithstanding anything contained in 
the Master Lease to the contrary, as between Sublessor and Sublessee only, 
all insurance proceeds or condemnation awards received by Sublessor under the 
Master Lease shall be deemed to be the property of Sublessor.

                                      7




     17. INDEMNITY. Sublessee hereby agrees to indemnify, protect, defend and 
hold Sublessor harmless from and against any and all claims, losses and 
damages, including without limitation, reasonable attorneys' fees and 
disbursements, (A) which may at any time be asserted against Sublessor by (i) 
the Master Lessor for failure of Sublessee to perform any of the covenants, 
agreements, terms, provisions or conditions contained in the Master Lease 
which by reason of the provisions of this Sublease Sublessee is obligated to 
perform, or (ii) any person by reason of Sublessee's use and/or occupancy of 
the Premises and (B) resulting from any failure by Sublessee to comply with 
the terms of this Sublease and the Master Lease, except to the extent any of 
the foregoing is caused by the negligence or willful misconduct of Sublessor. 
The provisions of this Paragraph 16 shall survive the expiration or earlier 
termination of the Master Lease and/or this Sublease, or the failure of 
Sublessor to perform its obligations hereunder.

     18. INSURANCE. Sublessee shall comply with all of the insurance 
requirements and obligations of Sublessor (applicable to the Premises), as 
Lessee under the Master Lease, and shall, whether required by the Master 
Lease or not, name Master Lessor and Sublessor as additional insureds, as 
their interests may appear, on all policies of insurance required to be 
carried by Sublessee hereunder or thereunder. No later than the Commencement 
Date hereunder, Sublessee shall provide Sublessor with certificates or other 
evidence of insurance acceptable to Sublessor certifying to the existence of 
all such policies of insurance.

     19. TAXES AND UTILITIES. Sublessee shall pay all taxes, including 
without limitation all Real Property Taxes and all personal property taxes on 
all trade fixtures, furnishings, equipment and all other personal property of 
Sublessee, as and when required to be paid by Sublessor under the Master 
Lease. Sublessee shall pay for all water, gas, heat, light, power, telephone 
and other utilities and services supplied to the Premises, as and when 
required to be paid by Sublessor under the Master Lease.

     20. ASSIGNMENT AND SUBLETTING. Subject to all of the rights of Master 
Lessor under the Master Lease and the restrictions contained in the Master 
Lease, Sublessee shall be entitled to assign this Sublease or to sublet all 
or any portion of the Premises subject to obtaining the prior written consent 
of Sublessor, which consent shall not be unreasonably withheld or delayed by 
Sublessor; provided, however, it shall be deemed reasonable for Sublessor to 
deny its consent with respect to any sublease or assignment of this Sublease 
if the Master Lessor does not consent to the same.

     21. DEFAULT. In addition to the events of default described under the 
Master Lease, the occurrence of any one or more of the following events shall 
additionally constitute a material default of this Sublease by Sublessee, in 
which event, immediately and without notice or demand, Sublessor shall be 
entitled to terminate this Sublease and/or to exercise all remedies otherwise 
available to it as the "Lessor" under the Master Lease:

        (a) The failure of Sublessee to observe or perform any of the 
covenants, conditions or provisions to be observed or performed by Sublessee 
under any one or more the

                                      8





following: (i) the Asset Sale Agreement; and/or (ii) that certain "Service 
Agreement" dated no later than the Commencement Date hereunder by and among 
Sublessee, Sublessor and Burke Industries, Inc., a California corporation 
("Burke Industries").

        (b) The failure of Sublessee to make any payment when due under that 
certain Promissory Note made no later than the Commencement Date hereunder by 
Sublessee for the benefit of Burke Industries in the original principal 
amount of Four Hundred Thousand Dollars ($400,000.00).

     22. HOLDOVER. Notwithstanding anything to the contrary contained in the 
Master Lease, if Sublessee fails to surrender the Premises upon the 
termination or expiration of this Sublease, with or without the express or 
implied consent of Sublessor, Sublessee shall pay rent during such tenancy at 
a monthly rate equal to the greater of (i) the amount which Master Lessor 
requires Sublessor to pay with respect to the Master Premises during such 
tenancy pursuant to the Master Lease and (ii) one hundred fifty percent 
(150%) of the Rent applicable under this Sublease during the last period of 
the Term and, in addition to any and all other liabilities of Sublessee to 
Sublessor accruing therefrom and any and all other rights and remedies of 
Sublessor provided herein, at law, or in equity, Sublessee shall protect, 
defend, indemnify and hold Sublessor harmless from all loss, cost (including 
reasonable attorneys' fees) and liability resulting from such failure to 
surrender the Premises, including, without limiting the generality of the 
foregoing, any claims made by any succeeding tenant founded upon such failure 
to surrender, and any losses suffered by Sublessor, including loss profits 
and/or any liability to Master Lessor resulting from such failure to 
surrender.

     23. TENANT IMPROVEMENTS. Sublessor agrees to lease to Sublessee and 
Sublessee agrees to lease from Sublessor on an "as is" basis the 
Manufacturing Improvements, the Utility Installations and other trade 
fixtures or improvements pertaining to the production or to mechanical or 
electrical systems ("Tenant Improvements"), including without limitation 
those improvements listed on EXHIBIT "C" attached hereto. During the term of 
the Sublease, Sublessee shall bear the risk of loss with respect to the 
Tenant Improvements and shall obtain and maintain insurance which insures 
such Tenant Improvements, and all of Lessee's personal property, fixtures, 
equipment and tenant improvements, if any, for "all risks" for the full new 
replacement cost value thereof without deduction for depreciation of the 
covered items and which policies shall name Sublessor as an additional 
insured and loss payee thereof. Sublessee shall, at its sole expense, keep 
the Tenant Improvements in good repair, condition and working order, ordinary 
wear and tear excepted, and shall indemnify, defend and hold harmless 
Sublessor, its assignees, transferees and successors and their respective 
employees, officers and/or agents, from and against any losses (including tax 
liability), costs, expenses, liabilities, damages, penalties and 
disbursements at law or in equity, including attorneys' fees, imposed on or 
incurred by or asserted against the indemnified parties arising out of the 
leasing, ownership, use, possession, control, maintenance or operation of the 
Tenant Improvements and claims for property damage, personal injury or 
wrongful death arising in strict liability or negligence. All indemnities 
contained in this Paragraph 23 shall survive the expiration or other 
termination of this Sublease

                                      9





and are expressly made for the benefit of, and shall be enforceable by, any or
all of the indemnified parties.

     24. SUCCESSORS AND ASSIGNS. The covenants and conditions contained in 
this Sublease shall, subject to the provisions of Paragraph 20, above, apply 
to and bind the successors and assigns of Sublessor and Sublessee.

     25. SEVERABILITY. If any term or provision of this Sublease or the 
application thereof to any person or circumstances shall, to any extent, be 
invalid and unenforceable, the remainder of this Sublease or the application 
of such term or provision to persons or circumstances other than those as to 
which it is held invalid or unenforceable, shall not be affected thereby and 
each term or provision of this Sublease shall be valid and be enforced to the 
fullest extent permitted by law.

     26. ENTIRE AGREEMENT; WAIVER. This Sublease contains the entire 
agreement between the parties hereto and shall be binding upon and inure to 
the benefit of their respective heirs, representatives, successors and 
permitted assigns. Any agreement hereinafter made shall be ineffective to 
change, modify, waive, release, discharge, terminate or effect an abandonment 
hereof, in whole or in part, unless such agreement is in writing and signed 
by the parties hereto.

     27. FURTHER ASSURANCES. The parties hereto agree that each of them, upon 
the request of the other party, shall execute and deliver, in recordable form 
if necessary, such further documents, instruments or agreements and shall 
take such further action that may be necessary or appropriate to effectuate 
the purposes of this Sublease.

     28. ATTORNEYS' FEES. In the event of the bringing of any action or suit 
by any part or parties hereto against another party or parties hereunder 
alleging a breach of any of the covenants, conditions, agreements or 
provisions of this Sublease, the prevailing party or parties shall recover 
all reasonable costs and expenses of suit, including without limitation, 
reasonable attorneys' fees, consultants fees and fees of expert witnesses.

     29. DEFINED TERMS. All capitalized, defined terms used in this Sublease 
shall have the same meanings and effect given to them in the Master Lease 
unless otherwise defined herein.

     30. CHOICE OF LAW. This Sublease shall be governed by and construed in 
accordance with the laws of the State of California.

     31. POWER AND AUTHORITY. Each of the persons executing this Sublease on 
behalf of Sublessee and Sublessor respectively warrant and represent to the 
other that they have full power and authority to execute this Sublease and 
bind their respective parties hereto.

     32. COUNTERPARTS. This Sublease may be executed in one or more 
counterparts, each of which shall be deemed original, and all of which 
together shall constitute one and the same instrument.

                                      10




     33. CONSENT OF MASTER LESSOR. The obligations of each of Sublessor and 
Sublessee hereunder shall be conditional upon the parties obtaining the 
written unconditional consent of Master Lessor to this Sublease ("Master 
Lessor Consent"). In the event, for any reason whatsoever, the Master Lessor 
Consent is not obtained on or before twenty (20) days after the date hereof, 
either party hereto may, in their respective sole discretion, cancel this 
Sublease upon delivery of ten (10) days' prior written notice to the other 
party; provided, however, that if such Master Lessor Consent is obtained 
within such ten (10) day period, such notice of cancellation shall be deemed 
revoked and this Sublease shall continue in full force and effect.

     34. CONSENT OF GUARANTOR. The obligations of each of Sublessor and 
Sublessee hereunder shall additionally be conditional upon the parties 
obtaining the written unconditional consent of Burke Industries, in its 
capacity as the "Guarantor" of Sublessor's performance under the Master Lease.

     IN WITNESS WHEREOF, the parties hereto have executed this Sublease to be 
effective as of the day and year first above written.

                                   "SUBLESSEE"

                                   WESTLAND TECHNOLOGIES, INC.,
                                   a California corporation

                                   By:      [ILLEGIBLE]
                                      ---------------------------------
                                         Its:   President
                                             --------------------------


                                   By:      [ILLEGIBLE]
                                      ---------------------------------
                                         Its:   Secretary
                                             --------------------------


                                      "SUBLESSOR"


                                      BURKE RUBBER COMPANY, INC.,
                                      a California corporation


                                   By:      [ILLEGIBLE]
                                      ---------------------------------
                                         Its:   President
                                             --------------------------




                                      11





GUARANTOR ACKNOWLEDGEMENT AND CONSENT:

     The undersigned, Burke Industries, Inc., a California corporation, 
guarantor of Sublessor's performance under the Master Lease, hereby 
acknowledges and consents to this Sublease upon and only upon the terms and 
conditions set forth in this Sublease, and further acknowledges that Master 
Lessor's consent to this Sublease shall have no effect on Guarantor's 
preexisting obligations as Guarantor.

DATED: June      , 1996
            -----

                                   BURKE INDUSTRIES, INC.,
                                   a California corporation

                                   By:      [ILLEGIBLE]
                                      ---------------------------------
                                         Its:   President
                                             --------------------------


MASTER LESSOR ACKNOWLEDGEMENT AND CONSENT:

     Each of the undersigned, co-trustees of the Arthur D. Bridges Family 
Revocable Trust, the Master Lessor under the Master Lease, hereby 
acknowledges and consents to this Sublease upon the terms and conditions set 
forth in this Sublease and the Master Lease.

DATED: June  21 , 1996
            ----






                                 /s/ [ILLEGIBLE]
                               -----------------------------------------------
                               Dennis L. Garrison, Co-Trustee of the Arthur D.
                               Bridges Family Revocable Trust

                                 /s/ [ILLEGIBLE]
                               -----------------------------------------------
                               Beverly Bridges, Co-Trustee of Arthur D.
                               Bridges Family Revocable Trust



                                      12



- --------------------------------------------------------------------------------





                                 EXHIBIT "A"

                                 MASTER LEASE

                                  [ATTACHED]




                          INDUSTRIAL LEASE (TRIPLE NET)

     1. PARTIES. This lease, dated July 1, 1991, is made by and between 
ARTHUR D. BRIDGES FAMILY REVOCABLE TRUST (herein called "Lessor") and BURKE 
RUBBER COMPANY, a California corporation (herein called "Lessee").

     2.   Premises, Parking and Common Areas.

          2.1 PREMISES. Lessor hereby leases to Lessee and Lessee leases from 
Lessor for the term, at the rental, and upon all of the conditions set forth 
herein, a portion of that real property situated in the County of Stanislaus, 
State of California, commonly known as 107 S. Riverside Drive, Modesto, more 
particularly described on Exhibit A, and described as approximately 106,906 
square feet (including approximately 10,390 square feet of office area) of 
the building occupying the Property (the "Building") as outlined on Exhibit 
A, herein referred to as the "Premises", including rights to the Common Areas 
as hereinafter specified.

          2.2 VEHICLE PARKING. Lessor hereby grants to Lessee the exclusive 
right to park in all parking spaces located on the north side of the Building 
and all parking spaces located on the south side of the Building; except for 
the sixty (60) spaces in the south parking lot marked on Exhibit A and access 
to the two (2) grade level loading doors located on the south side of the 
Building. Lessee shall have nonexclusive use of such sixty (60) spaces until 
such time as Lessor rents a portion of the Building to a tenant other than 
Lessee, and Lessor gives Lessee notice that the new tenant will have 
exclusive use of some or all of the sixty (60) spaces. Lessor hereby grants 
to Lessee a nonexclusive easement over the Property between the east side of 
the Building and the eastern boundary of the Property for purposes of 
constructing and maintaining a walkway and for ingress and egress on and over 
a walkway between the south parking lot and the Premises.

          2.3 COMMON AREAS - DEFINITION. The term "Common Areas" is defined 
as all areas and facilities outside the Building and within the boundary line 
of the Property, except for the north parking lot.

          2.4 COMMON AREAS - LESSEE'S RIGHTS. Lessor hereby grants to Lessee, 
for the benefit of Lessee and its employees, suppliers, shippers, customers 
and invitees, during the term of this Lease, the non-exclusive right to use, 
in common with others entitled to such use, the Common Areas. Lessee shall 
have



                                     -1-



the right to temporarily store personal property in the north parking lot of 
the Property from time to time as it deems necessary or desirable; provided 
that such property as stored is not in violation of any law, rule or 
regulation of a governmental authority having jurisdiction over the Property. 
Lessor shall not make changes to the Common Areas or the north parking lot 
without Lessee's prior written consent, which consent shall not be 
unreasonably withheld.

     3.   TERM.

          3.1 TERM. The term of this Lease shall be for ten (10) years and 
four (4) months commencing on July 1, 1991 and ending on October 31, 2001 
unless otherwise changed pursuant to any provision hereof. This Lease term 
includes four (4) months free rent.

          3.2 EARLY POSSESSION. Lessee may occupy the Premises prior to said 
commencement date; such occupancy shall be subject to all provisions of this 
Lease, such occupancy shall not advance the termination date.

     4.   RENT.

          4.1 RENT COMMENCEMENT DATE. Lessee shall pay no rent through and 
until November 1, 1991. If either Lessor or Lessee has obtained financing for 
the Improvement Loan set forth in paragraph 48 of this Lease (hereinafter 
"Improvement Loan") by September 1, 1991, Lessee shall commence paying Base 
Rent to Lessor on November 1, 1991 ("Rent Commencement Date). If neither 
Lessor nor Lessee has obtained financing for the Improvement Loan by 
September 1, 1991, the Rent Commencement Date shall be delayed on a 
day-by-day basis from November 1, 1991 by the number of days past September 
1, 1991 until the date that the Improvement Loan is obtained by either Lessor 
or Lessee. For example, if the financing for the Improvement Loan is obtained 
on September 15, 1991 (by either Lessor or Lessee), the Rent Commencement 
Date shall be November 15, 1991. If the Rent Commencement Date is other than 
the first day of a calendar month, then the Base Rent for such month in each 
year of the lease shall be equitably prorated based on the number of days 
that rent or a particular rental rate is in effect during the month. Lessee 
shall be responsible, however, for any payments to be applied to the 
Improvement Loan prior to the Rent Commencement Date if said Improvement Loan 
proceeds have been provided by Lessor to Lessee.



                                       -2-



          4.2 BASE RENT. The amount of Lessee's monthly base rental payments 
shall be dependent upon whether Lessor obtains the funding for the 
Improvement Loan. In the event that Lessor provides to Lessee the funding for 
the Improvement Loan prior to the Rent Commencement Date, Lessee shall pay to 
Lessor, beginning on the Rent Commencement Date, the amounts set forth under 
Column A of Exhibit A-1, "Schedule of Monthly Base Rental Payments", as its 
Base Rent. In the event that Lessor does not provide the funding for the 
Improvement Loan, Lessee shall pay to Lessor, beginning on the Rent 
Commencement Date, the amounts set forth under Column B of Exhibit A-1, 
"Schedule of Monthly Base Rental Payments", as its Base Rent. In the event 
that Lessor provides the funding for the Improvement Loan subsequent to the 
Rent Commencement Date, the amount of the Improvement Loan proceeds payable 
by Lessor to Lessee shall be reduced by Twenty Thousand Dollars ($20,0000) 
for each month after the Rent Commencement Date. Upon the providing of the 
Improvement Loan proceeds by Lessor to Lessee, Lessee shall, in the 
succeeding month and every month thereafter, pay the amounts set forth under 
Column A of Exhibit A-l, "Schedule of Monthly Base Rental Payments" as its 
Base Rent. For example, if the Rent Commencement Date is November 1, 1991 and 
if on December 30, 1991 Lessor provides to Lessee funding for the Improvement 
Loan, the amount of the Improvement Loan proceeds would be $535,000.00 and, 
beginning January 1, 1992 (Month 3), Lessee's Monthly Base Rent would be 
$21,381.00. Upon execution of this Lease, Lessee shall pay Lessor Twenty-One 
Thousand Three Hundred Eighty-One no/100 dollars ($21,381.00) as Base Rent 
for the first month in which rent is due. Rent shall be payable in lawful 
money of the United States to Lessor at the address stated herein or to such 
other persons or at such other places as Lessor may designate in writing.

          4.3  OPERATING EXPENSES. Lessee shall pay to Lessor during the term 
hereof, in addition to the Base Rent, Lessee's Share, as hereinafter defined, 
of all Operating Expenses, as hereinafter defined, during each calendar year 
of the term of this Lease.

               (a) "Lessee's Share" is defined, for purposes of this Lease, 
as sixty (60) percent.

               (b) "Operating Expenses" is defined, for purposes of this 
Lease, as all costs incurred by Lessor, if any, for:


                                     -3-


                    (i)   The operation, repair and maintenance, in neat, 
clean, good order and condition, such portions of the Building as Lessor is 
responsible for maintaining under the terms of this Lease.

                    (ii)  The cost of the premiums for the liability and 
property insurance policies required to be maintained by Lessor under 
paragraph 8 hereof (but not to the extent that such policy limits exceed 
those required by paragraph 8).

                    (iii) The amount of the real property tax to be paid by 
Lessor under paragraph 10.1 hereof.

Notwithstanding the foregoing, the following shall be explicitly excluded 
from Operating Expenses:

                          (1) Expenditures required by Lessor's failure to 
comply with laws enacted on or before the date of this Lease;

                          (2) Costs incurred by Lessor for repair of damage to 
the Building and costs attributable solely to tenants of the Building other 
than Lessee;

                          (3) Costs, including permits, license and inspection 
costs, incurred with respect to the installation of tenant improvements made 
for tenants in the Building or incurred in renovating or otherwise improving, 
decorating, painting or redecorating vacant space for other occupants of the 
Building;

                          (4) Costs incurred by Lessor for maintenance, 
repairs or alterations which are considered capital improvements and 
replacements under generally accepted accounting principles, consistently 
applied;

                          (5) Costs incurred by Lessor due to the violation by 
Lessor or any other tenants of the terms and conditions of any other tenants 
leasing of space in the Building.

               (c) The inclusion of the improvements, facilities and services 
set forth in paragraph 4.2(b)(i) of the definition of Operating Expenses 
shall not be deemed to impose an obligation upon Lessor to either have said 
improvements or facilities or to provide those services unless the Industrial 
Center already has the

                                      -4-


same, Lessor already provides the services, or Lessor has agreed elsewhere in
this Lease to provide the same or some of them.

               (d) Lessee's Share of Operating Expenses shall be payable by 
Lessee within ten (10) days after a reasonably detailed statement of actual 
expenses is presented to Lessee by Lessor. At Lessor's option, however, an 
amount may be estimated by Lessor from time to time of Lessee's Share of 
annual Operating Expenses and the same shall be payable monthly or quarterly, 
as Lessor shall designate, during each twelve-month period of the Lease term, 
on the same day as the Base Rent is due hereunder. In the event that Lessee 
pays Lessor's estimate of Lessee's Share of Operating Expenses as aforesaid, 
Lessor shall deliver to Lessee within sixty (60) days after the expiration of 
each calendar year a reasonably detailed statement showing Lessee's Share of 
the actual Operating Expenses incurred during the preceding year. If Lessee's 
payments under this paragraph 4.2(d) during said preceding year exceed 
Lessee's Share as indicated on said statement, Lessee shall be entitled to a 
refund of the amount of such overpayment. if Lessee's payments under this 
paragraph during said preceding year were less than Lessee's share as 
indicated on said statement, Lessee shall pay to Lessor the amount of the 
deficiency within ten (10) days after delivery by Lessor to Lessee of said 
statement.

               (e) Lessor shall provide to Lessee documents substantiating 
all of Lessor's Operating Expenses which Lessee is obligated to pay under 
this Lease. Should there be a discrepancy between Lessee's share of Operating 
Expenses set forth in the statement and Lessee's share of Operating Expenses 
actually incurred then the party who was benefited by such discrepancy shall 
pay the other party the amount of the discrepancy within thirty (30) days 
after receiving notice of the discrepancy.

     5. SECURITY DEPOSIT. Lessee shall deposit with Lessor upon execution 
hereof $21,381.00 as security for Lessee's faithful performance of Lessee's 
obligations hereunder. If Lessee fails to pay rent or other charges due 
hereunder, or otherwise defaults with respect to any provision of this Lease, 
Lessor may use, apply or retain all or any portion of said deposit for the 
payment of any rent or other charge in default or for the payment of any 
other sum to which Lessor may become obligated by reason of Lessee's default, 
or to compensate Lessor for any loss or damage which Lessor may suffer 
thereby. If Lessor so uses or applies all or any portion of said deposit, 
Lessee shall within ten (10) days after written demand therefor deposit cash 
with Lessor in an amount sufficient to restore said deposit to the full 
amount then required of Lessee. Lessor shall not be required

                                      -5-


to keep said security deposit separate from its general accounts. If Lessee 
is not in default upon termination of the Lease, said deposit, or so much 
thereof as has not theretofore been applied by Lessor, shall be returned, 
without payment of interest or other increment for its use, to Lessee at the 
expiration of the term hereof, and after Lessee has vacated the Premises. No 
trust relationship is created herein between Lessor and Lessee with respect 
to said Security Deposit.

     6. USE.

          6.1 USE. The Premises shall be used and occupied only for general 
office purposes, sales, manufacturing, warehousing, shipping and support or 
any other use which is reasonably comparable and for no other purpose.

          6.2 COMPLIANCE WITH LAW.

               (a) Lessor warrants to Lessee that the Premises, in the state 
existing on the date that the Lease term commences, but without regard to the 
use for which Lessee will occupy the Premises, does not violate any covenants 
or restrictions of record, or any applicable building code, regulation or 
ordinance in effect on such Lease term commencement date. In the event it is 
determined that this warranty has been violated, then it shall be the 
obligation of the Lessor, after written notice from Lessee, to promptly, at 
Lessor's sole cost and expense, rectify any such violation. In the event 
Lessee does not give to Lessor written notice of the violation of this 
warranty within six months from the date that the lease term commences, the 
correction of same shall be the obligation of the Lessee at Lessee's sole 
cost.

               (b) Except as provided in paragraph 6.2(a) Lessee shall, at 
Lessee's expense, promptly comply with all applicable statutes, ordinances, 
rules, regulations, orders, covenants and restrictions of record now in 
effect or which may hereafter come into effect, whether or not they reflect a 
change in policy from that now existing, during the term or any part of the 
term hereof, relating in any manner to the Premises and the occupation and 
use by Lessee of the Premises and of the Common Areas. Lessee shall not use 
nor permit the use of the Premises or the Common Areas in any manner that 
will create waste or a nuisance or shall unreasonably disturb other occupants 
of the Property.

                                      -6-


          6.3 CONDITION OF PREMISES.

               (a) Lessor shall deliver the Premises to Lessee clean and free 
of debris on the Lease commencement date {unless Lessee is already in 
possession) and Lessor warrants to Lessee that, subject to the qualifications 
set forth in this paragraph 6.3(a), the plumbing, lighting, air conditioning 
(if any), heating and loading doors, shall be in good operating condition on 
the Rent Commencement Date. In the event that it is determined that this 
warranty has been violated, then it shall be the obligation of Lessor, after 
receipt of written notice from Lessee setting forth with specificity the 
nature of the violation, to promptly, at Lessor's sole cost, rectify such 
violation. With respect to the warranty as to the condition of the Premises, 
but not the warranty of legal compliance, Lessee's failure to give such 
written notice to Lessor within thirty (30) days after the Lease Commencement 
Date shall cause the conclusive presumption that Lessor has complied with all 
of Lessor's obligations hereunder.

               (b) The parties acknowledge that the fire sprinkler system in 
the Building presently is not capable of performing at the standard for 
Lessee's specific use of the premises. Conditioned upon the terms set forth 
below, Lessor agrees to install a fire sprinkler system so that it meets or 
exceeds the standards necessary for Lessee's specific use of the Premises and 
to add fire sprinklers to the paint booths and acid etch room to be 
constructed within the Premises. The costs of such sprinkler installation and 
repair shall be borne by Lessee and Lessor as follows: The first Seventy-five 
Thousand Dollars ($75,000.00) shall be the obligation of Lessee. Any costs in 
excess of Seventy-five Thousand Dollars ($75,000.00) shall be the obligation 
of Lessor. In no event shall Lessee's portion of such costs exceed 
Seventy-Five Thousand Dollars ($75,000.00). Such sprinkler installation and 
repair shall be immediately begun upon either Lessor or Lessee obtaining the 
financing for the Improvement Loan set forth in paragraph 48.

               (c) Except as otherwise provided in this Lease, Lessee hereby 
accepts the Premises in their condition existing as of the Lease commencement 
date or the date that Lessee takes possession of the Premises, whichever is 
earlier, subject to all applicable zoning, municipal, county and state laws, 
ordinances and regulations governing and regulating the use of the Premises, 
and any covenants or restrictions of record, and accepts this Lease subject 
thereto and to all matters disclosed thereby and by any exhibits attached 
hereto. Lessee acknowledges that neither Lessor nor Lessor's agent has made 
any representation or warranty as to the present or future suitability of the 
Premises for the conduct of Lessee's business.


                                      -7-


     7. MAINTENANCE, REPAIRS, ALTERATIONS AND COMMON AREA SERVICES.

          7.1 LESSOR'S OBLIGATIONS. Subject to the provisions of paragraphs 
4.2 (Operating Expenses), 6 (Use), 7.2 (Lessee's Obligations) and 9 (Damage 
or Destruction) and except for damage caused by any negligent or intentional 
act or omission of Lessee, Lessee's employees, suppliers, shippers, 
customers, or invitees, in which event Lessee shall repair the damage (to the 
extent uninsured by Lessor). Lessor, at Lessor's expense, subject to 
reimbursement pursuant to paragraph 4.2, shall keep in good condition and 
repair the foundations, exterior walls, the Common Areas (except as otherwise 
provided herein) and roof of the Premises, as well as providing the services 
for which there is an Operating Expense pursuant to paragraph 4.2. Lessor 
shall have no obligation to make repairs under this paragraph 7.1 until a 
reasonable time after receipt of written notice from Lessee of the need for 
such repairs. Lessor shall not, however, be obligated to paint the exterior 
or interior surface of exterior walls, nor shall Lessor be required to 
maintain, repair or replace windows, doors or plate glass of the Premises. 
Lessor shall not be liable for damages or loss of any kind or nature by 
reason of Lessor's failure to furnish any Common Area Services when such 
failure is caused by accident, breakage, repairs, strikes, lockout, or other 
labor disturbances or disputes of any character, or by any other cause beyond 
the reasonable control of Lessor.

          7.2  LESSEE'S OBLIGATIONS.

               (a) Subject to the provisions of paragraphs 6 (Use, 7.1 
(Lessor's Obligations), and 9 (Damage or Destruction), Lessee, at Lessee's 
expense, shall keep in good order, condition and repair the Premises and 
every part thereof (whether or not the damaged portion of the Premises or 
the means of repairing the same are reasonably or readily accessible to 
Lessee) including, without limiting the generality of the foregoing, all 
rplumbing, heating, ventilating and air conditioning systems, electrical and 
lighting facilities and equipment within the Premises, fixtures, interior 
walls and interior surfaces of exterior walls, ceilings, windows, doors, 
plate glass, and skylights located within the Premises, the structural 
condition of interior load bearing walls and roof membrane. Lessee shall 
maintain the landscaping on the Property, all parking lots on the Property 
and the walkway, if any, constructed pursuant to paragraph 2.2, at its cost 
and expense subject to reimbursement as set forth below. Lessee shall bill 
Lessor for: (i) a percentage of the costs incurred in maintaining the south 
parking lot equal to the percentage obtained by dividing the number of spaces 
Lessee does not have the exclusive use of in such south parking lot by the 
total number of spaces in such south parking lot; and (ii) the costs incurred 
in maintaining the landscaping on the Property that lies south of the east-

                                      -8-


west line running through the most southerly point of the Premises (excluding 
the boiler room).

               (b) If Lessee fails to perform Lessee's obligations under this 
paragraph 7.2 or under any other paragraph of this Lease, Lessor may enter 
upon the Premises after ten (10) days' prior written notice to Lessee (except 
in the case of emergency, in which no notice shall be required), perform such 
obligations on Lessee's behalf and put the Premises in good order, condition 
and repair, and the cost thereof together with interest thereon at the 
maximum rate then allowable by law shall be due and payable as additional 
rent to Lessor together with Lessee's next Base Rent installment.

               (c) On the last date of the term hereof, or on any sooner 
termination, Lessee shall surrender the Premises to Lessor in the same 
condition as received, ordinary wear and tear excepted, clean and free of 
debris. Any damage or deterioration of the Premises shall not be deemed 
ordinary wear and tear if the same could have been prevented by good 
maintenance practices. Lessee shall repair any damage to the Premises 
occasioned by the installation or removal of Lessee's trade fixtures, 
alterations, furnishings and equipment. Notwithstanding anything to the 
contrary otherwise stated in this Lease, Lessee shall leave all components of 
the Premises that existed prior to the execution of this Lease and all tenant 
improvements (other than those pertaining to production or to mechanical ' or 
electrical systems). Lessor may require the removal or Lessee may elect to 
remove any or all of the Manufacturing Improvements and/or improvements 
pertaining to production or to mechanical or electrical systems. Lessee shall 
repair any damage caused by such removal and restore the effected portion of 
the Premises to its pre-lease condition, reasonable wear and tear excepted.

          7.3  ALTERATIONS AND ADDITIONS.

               (a) Lessee may, without Lessor's prior written consent make 
any alterations, improvements, additions, or Utility Installations in, on or 
about the Premises that it desires; provided that Lessee shall make no change 
or alteration to the exterior of the Premises nor the exterior of the 
building nor the Property without Lessor's prior written consent; and 
provided further that such alteration is and is carried out in compliance 
with all applicable laws. As used in this paragraph 7.3 the term "Utility 
Installation" shall mean carpeting, window coverings, air lines, power 
panels, electrical distribution systems, lighting fixtures, space heaters, 
air conditioning, plumbing, and fencing. Unless Lessee has obtained Lessor's 
written consent to its leaving the alterations, Lessor may require that 
Lessee remove (or

                                      -9-


Lessee may voluntarily remove) any or all of said alterations, improvements, 
additions or Utility Installations at the expiration of the term, and restore 
the Premises and the Property to their prior condition. Lessor may require 
Lessee to provide Lessor, at Lessee's sole cost and expense, a lien and 
completion bond in an amount equal to the estimated cost of such 
improvements, to insure Lessor against any liability for mechanic's and 
materialmen's liens and to insure completion of the work.

               (b) Any alterations, improvements, additions or Utility 
Installations in or about the Premises or the Property that Lessee shall 
desire to make and which requires the consent of the Lessor shall be 
presented to Lessor in written form, with proposed detailed plans. If Lessor 
shall give its consent, the consent shall be deemed conditioned upon Lessee 
acquiring a permit to do so from appropriate governmental agencies, the 
furnishing of a copy thereof to Lessor prior to the commencement of the work 
and the compliance by Lessee of all conditions of said permit in a prompt and 
expeditious manner.

               (c) Lessee shall pay, when due, all claims for labor or 
materials furnished or alleged to have been furnished to or for Lessee at or 
for use in the Premises, which claims are or may be secured by any mechanic's 
or materialmen's lien against the Premises, or the Property, or any interest 
therein. Lessee shall give Lessor not less than ten (10) days' notice prior 
to the commencement of any work in the Premises, and Lessor shall have the 
right to post notices of non-responsibility in or on the Premises or the 
Building as provided by law. If Lessee shall, in good faith, contest the 
validity of any such lien, claim or demand, then Lessee shall, at its sole 
expense defend itself and Lessor against the same and shall pay and satisfy 
any such adverse judgment that may be rendered thereon before the enforcement 
thereof against the Lessor or the Premises or the Property, upon the 
condition that if Lessor shall require, Lessee shall furnish to Lessor a 
surety bond satisfactory to Lessor in an amount equal to such contested lien 
claim or demand indemnifying Lessor against liability for the same and 
holding the Premises and the Property free from the effect of such lien or 
claim. In addition, Lessor may require Lessee to pay Lessor's attorney's fees 
and costs in participating in such action if Lessor shall decide it is to 
Lessor's best interest to do so.

          7.4 UTILITY ADDITIONS. Lessor reserves the right to install new or 
additional utility facilities throughout the Building and the Common Areas 
for the benefit of Lessor or Lessee, or any other Lessee of the Property, 
including, but not by way of limitation, such utilities as plumbing, 
electrical systems, security systems,

                                      -10-


communication systems, and fire protection and detection systems, so long as
such installations do not unreasonably interfere with Lessee's use of the
Premises. Notwithstanding any provision of this Lease to the contrary, Lessor
shall take no action that would violate Lessee's security clearance or
obligations as a government contractor; provided that this sentence shall not be
construed to prevent Lessor from exercising its remedies under paragraph 13.

     8. INSURANCE; INDEMNITY.

          8.1 LIABILITY INSURANCE -- LESSEE. Lessee shall, at Lessee's 
expense, obtain and keep in force during the term of this Lease a policy of 
Combined Single Limit Bodily Injury and Property Damage Insurance insuring 
Lessee and Lessor against any liability arising out of the use, occupancy or 
maintenance of the Premises and the Property. Such insurance shall be in an 
amount not less than $1,000,000.00 per occurrence. The policy shall insure 
performance by Lessee of the indemnity provisions of this paragraph 8. The 
limits of said insurance shall not, however, limit the liability of Lessee 
hereunder. The insurance required by this paragraph may be maintained by a 
rider to Lessee's existing blanket liability coverage. Each party shall 
require its insurer to provide notice of cancellation to the additional 
insured.

          8.2 LIABILITY INSURANCE -- LESSOR. Lessor shall obtain and keep in 
force during the term of this lease a policy of Combined Single Limit Bodily 
Injury and Property Damage Insurance, insuring Lessor, but not Lessee, 
against any liability arising out of the ownership, use, occupancy or 
maintenance of the Property in an amount not less than $500,000.00 per 
occurrence. The policy shall insure the performance by Lessor of the 
indemnity provisions of paragraph 8.7. The limits of said insurance shall 
not, however, limit the liability of Lessor hereunder.

          8.3 PROPERTY INSURANCE. Lessor shall obtain and keep in force 
during the term of this Lease a policy or policies of insurance covering loss 
or damage to the Property improvements, but not Lessee's personal property, 
fixtures, equipment or tenant improvements, in an amount not to exceed the 
full replacement value thereof, as the same may exist from time to time, 
providing protection against all perils included within the classification of 
fire, extended coverage, vandalism, malicious mischief, flood (in the event 
same is required by a lender having a lien on the Premises) special extended 
perils ("all risk", as such term is used in the insurance industry). In 
addition, Lessor shall obtain and keep , in force, during the term of this 
Lease, a policy of rental value insurance covering a period of one year, with 
loss payable to Lessor, which insurance shall also cover

                                      -11-


all Operating Expenses for said period. In the event that the Premises shall
suffer an insured loss as defined in paragraph 9.1(g) hereof, the deductible
amounts under the casualty insurance policies relating to the Premises shall be
paid by Lessee: provided such deductible amount does not exceed $5,000.00.

          8.4  PAYMENT OF PREMIUM INCREASE.

               (a) After the term of this Lease has commenced, Lessee shall 
not be responsible for paying Lessee's Share of any increase in the Property 
insurance premium for the Property specified by Lessor's insurance carrier as 
being caused by the use, acts or omissions of any other Lessee of the 
Property, or by the nature of such other Lessee's occupancy which create an 
extraordinary or unusual risk.

               (b) Lessee, however, shall pay the entirety of any increase in 
the property insurance premium for the Property over what it was immediately 
prior to the commencement of the term of this Lease if the increase is caused 
by the nature of Lessee's occupancy, but not by the fact that the Building is 
now occupied (as opposed to unoccupied), or any act or omission of Lessee.

          8.5 INSURANCE POLICIES. Insurance required hereunder shall be in 
companies holding a "General Policyholders Rating" of at least B plus, or 
such other rating as may be required by a lender having a lien on the 
Premises, as set forth in the most current issue of "Best's Insurance Guide." 
Each party shall not do or permit to be done anything which shall invalidate 
the insurance policies carried by the other party. Each party shall deliver 
to the other party copies of liability insurance policies required under 
paragraph 8.1 or certificates evidencing the existence and amounts of such 
insurance within seven (7) days after the commencement date of this Lease. No 
such policy shall be cancellable or subject to reduction of coverage or other 
modification except after thirty (30) days prior written notice to the other 
party. Each party shall name the other party as an additional insured. Each 
party shall, at least thirty (30) days prior to the expiration of such 
policies, furnish the other party with renewals or "binders" thereof. Each 
policy shall contain a cross-liability provision.

          8.6 WAIVER OF SUBROGATION. Lessee and Lessor each hereby release 
and relieve the other, and waive their entire right of recovery against the 
other for loss or damage arising out of or incident to the perils insured 
against which perils occur in, on or about the Premises, whether due to the 
negligence of Lessor or Lessee or their agents, employees, contractors 
and/or invitees. Lessee and Lessor

                                      -12-


shall, upon obtaining the policies of insurance required give notice to the
insurance carrier or carriers that the foregoing mutual waiver of subrogation is
contained in this Lease.

          8.7  INDEMNITY.

               (a) Except for Lessor's negligence or willful misconduct, 
Lessee hall indemnify and hold harmless Lessor from and against any and all 
claims arising from Lessee's use of the Property, or from the conduct of 
Lessee's business or from any activity, work or things done by Lessee on the 
property and shall further indemnify and hold harmless Lessor from and 
against any and all claims arising from any breach or default in the 
performance of any obligation on Lessee's part to be performed under the 
terms of this Lease, or arising from any act or omission of Lessee, or any of 
Lessee's agents, contractors, or employees.

               (b) Lessor shall indemnify and hold harmless Lessee from and 
against any and all claims arising from any breach or default in the 
performance of any obligation on Lessor's part to be performed under the 
terms of this Lease.

               (c) The indemnities set forth in this paragraph 8.7 shall 
survive the termination of this Agreement.

          8.8  EXEMPTION OF LESSOR FROM LIABILITY. Lessee hereby agrees that 
Lessor shall not be liable for injury to Lessee's business or any loss of 
income therefrom. Except for Lessor's negligence or willful misconduct, 
Lessor shall not be liable for any damages arising from any act or neglect of 
any other lessee, occupant or user of the Property, nor from the failure of 
Lessor to enforce the provisions of any other lease of the Property.

     9. DAMAGE OR DESTRUCTION.

          9.1  DEFINITIONS.

               (a) "Premises Partial Damage" shall mean if the Premises are 
damaged or destroyed to the extent that the cost of repair is less than fifty 
percent of the then replacement cost of the Premises.

                                      -13-


               (b) "Premises Total Destruction" shall mean if the Premises 
are damaged or destroyed to the extent that the cost of repair is fifty 
percent or more of the then replacement cost of the Premises.

               (c) "Premises Building Partial Damage" shall mean if the 
Building of which the Premises are a part is damaged or destroyed to the 
extent that the cost to repair is less than fifty percent of the then 
replacement cost of the Building.

               (d) "Premises Building Total Destruction" shall mean if the 
Building of which the Premises are a part is damaged or destroyed to the 
extent that the cost to repair is fifty percent or more of the then 
replacement cost of the Building.

               (e) There is no paragraph 9.1(e) to this Lease.

               (f) There is no paragraph 9.1(f) to this Lease.

               (g) "Insured Loss" shall mean damage or destruction which was 
covered by an event required to be covered by the insurance described in 
paragraph 8. The fact that an insured Loss has a deductible amount shall not 
make the loss an uninsured loss.

               (h) "Replacement Cost" shall mean the amount of money 
necessary to be spent in order to repair or rebuild the damaged area to the 
condition that existed immediately prior to the damage occurring excluding 
all improvements made by Lessees.

          9.2  PREMISES PARTIAL DAMAGE; PREMISES BUILDING PARTIAL DAMAGE.

               (a) Insured Loss: Subject to the provisions of paragraphs 9.4 
and 9.5. if at any time during the term of this Lease there is damage which 
is an insured Loss and which falls into the classification of either Premises 
Partial Damage or Premises Building Partial Damage, then Lessor shall, at 
Lessor's expense, repair such damage to the Premises, but not Lessee's 
fixtures, equipment or tenant improvements, as soon as reasonably possible 
and this Lease shall continue in full force and effect.

               (b) Uninsured Loss: Subject to the provisions of paragraphs 
9.4 and 9.5, if at any time during the term of this lease there is damage 
which is

                                      -14-


not an Insured Loss and which falls within the classification of Premises 
partial Damage or Premises Building Partial Damage, unless caused by a 
negligent or willful act of Lessee (in which event Lessee shall make the 
repairs at Lessee's expense), Lessor may at Lessor's option either (i) repair 
such damage as soon as reasonably possible at Lessor's expense, in which 
event this Lease shall continue in full force and effect, or (ii) give 
written notice to Lessee within thirty (30) days after the date of the 
occurrence of such damage of Lessor's intention to cancel and terminate this 
Lease as of the date of the occurrence of such damage. In the event Lessor 
elects to give such notice of Lessor's intention to cancel and terminate this 
Lease, Lessee shall have the right within ten (10) days after the receipt of 
such notice to give written notice to Lessor of Lessee's intention to repair 
such damage at Lessee's expense, without reimbursement from Lessor, in which 
event this Lease shall continue in full force and effect, and Lessee shall 
proceed to make such repairs as soon as reasonably possible. If Lessee does 
not give such notice within such 10-day period this Lease shall be cancelled 
and terminated as of the date of the occurrence of such damage.

          9.3  PREMISES TOTAL DESTRUCTION; PREMISES BUILDING TOTAL 
DESTRUCTION; THE PROPERTY TOTAL DESTRUCTION.

               (a) Subject to the provisions of paragraphs 9.4 and 9.5, if at 
any time during the term of this Lease there is damage, whether or not it is 
an Insured Loss, and which falls into the classifications of either (i) 
Premises Total Destruction, or (ii) Premises Building Total Destruction, then 
Lessor may at Lessor's option either (i) repair such damage or destruction, 
but not Lessee's fixtures, equipment or tenant improvements, as soon as 
reasonably possible at Lessor's expense, and this Lease shall continue in 
full force and effect, or (ii) give written notice to Lessee within thirty 
(30) days after the date of occurrence of such damage of Lessor's intention 
to cancel and terminate this lease, in which case this lease shall be 
cancelled and terminated as of the date of the occurrence of such damage. 
Lessee shall have the same option to terminate the Lease on the same terms 
and conditions applicable to Lessor under this paragraph 9.3. If Lessee 
chooses to terminate under this paragraph, it shall pay to Lessor the 
Improvement Loan Balance.

          9.4  DAMAGE NEAR END OF TERM.

               (a) Subject to paragraph 9.4(b), if at any time during the 
last six months of the term of this lease there is substantial damage, 
whether or not an Insured Loss, which falls within the classification of 
Premises Partial Damage,

                                      -15-


Lessor may at Lessor's option cancel and terminate this Lease as of the date of
occurrence of such damage by giving written notice to Lessee of Lessor's
election to do so within 30 days after the date of occurrence of such damage.

               (b) Notwithstanding paragraph 9.4(a), in the event that Lessee 
has an option to extend or renew this Lease, and the time within which said 
option may be exercised has not yet expired, Lessee shall exercise such 
option, if it is to be exercised at all, no later than twenty (20) days after 
the occurrence of an Insured Loss falling within the classification of 
Premises Partial Damage during the last six months of the term of this Lease. 
If Lessee duly exercises such option during said twenty (20) day period, 
Lessor shall, at Lessor's expense, repair such damage, but not Lessee's 
fixtures, equipment or tenant improvements, as soon as reasonably possible 
and this lease shall continue in full force and effect. If Lessee fails to 
exercise such option during said twenty (20) day period, then Lessor.may at 
Lessor's option terminate and cancel this Lease as of the expiration of said 
twenty (20) day period by giving written notice to Lessee of Lessor's 
election to do so within ten (10) days after the expiration of said twenty 
(20) day period, notwithstanding any term or provision in the grant of option 
to the contrary.

          9.5  ABATEMENT OF RENT; LESSEE'S REMEDIES.

               (a) In the event Lessor repairs or restores the Premises 
pursuant to the provisions of this paragraph 9. the rent payable hereunder 
for the period during which such damage, repair or restoration continues 
shall be abated in proportion to the degree to which Lessee's use of the 
Premises is impaired.

               (b) If Lessor shall be obligated to repair or restore the 
Premises under the provisions of this paragraph 9 and shall not commence such 
repair or restoration within ninety (90) days after such obligation shall 
accrue, Lessee may at Lessee's option cancel and terminate this Lease by 
giving Lessor written notice of Lessee's election to do so at any time prior 
to the commencement of such repair or restoration. In such event this Lease 
shall terminate as of the date of such notice.

          9.6 TERMINATION--ADVANCE PAYMENTS. Upon termination of this Lease 
pursuant to this paragraph 9, an equitable adjustment shall be made 
concerning advance rent and any advance payments made by Lessee to Lessor. 
Lessor shall, in addition, return to Lessee so much of Lessee's security 
deposit as has not theretofore been applied by Lessor.

                                      -16-


          9.7  WAIVER. Lessor and Lessee waive the provisions of any statute 
which relate to termination of leases when leased property is destroyed and 
agree that such event shall be governed by the terms of this Lease.

     10. REAL PROPERTY TAXES.

          10.1 PAYMENT OF TAXES. Lessor shall pay the real property tax, as 
defined in paragraph 10.3 applicable to the Property subject to reimbursement 
by Lessee of Lessee's Share of such taxes in accordance with the provisions 
of paragraph 4.2. except as otherwise provided in paragraph 10.2.

          10.2 ADDITIONAL IMPROVEMENTS. Lessee shall not be responsible for 
paying Lessee's Share of any increase in real property tax caused by any sale 
or other transfer of the Property or by additional improvements placed upon 
the Property by other Lessees or by Lessor for the exclusive enjoyment of 
such other Lessees. Lessee shall, however, pay to Lessor at the time that 
Operating Expenses are payable under paragraph 4.2(c) the entirety of any 
increase in real property tax if assessed solely by reason of additional 
improvements placed upon the Premises by Lessee or at Lessee's request.

          10.3 DEFINITION OF "REAL PROPERTY TAX." As used herein, the term 
"real property tax" shall include any form of real estate tax or assessment, 
general, special, ordinary or extraordinary, and any license fee, commercial 
rental tax, improvement bond or bonds, levy or tax (other than inheritance, 
personal income or estate taxes) imposed on the Property or any portion 
thereof by any authority having the direct or indirect power to tax, 
including any city, county, state or federal government, or any school, 
agricultural, sanitary, fire, street, drainage or other improvement district 
thereof, as against any legal or equitable interest of Lessor in the Property 
or in any portion thereof, as against Lessor's right to rent or other income 
therefrom, and as against Lessor's business of leasing the Property.

          10.4 There is no paragraph 10.4 to this Lease.

          10.5 PERSONAL PROPERTY TAXES.

               (a) Lessee shall pay prior to delinquency all taxes assessed 
against and levied upon trade fixtures, furnishings, equipment and all other 
personal property of Lessee contained in the Premises or elsewhere. When 
possible, Lessee shall cause said trade fixtures, furnishings, equipment and 
all other personal property to be assessed and billed separately from the 
real property of Lessor.

                                      -17-


               (b) If any of Lessee's said personal property shall be 
assessed with Lessor's real property, Lessee shall pay to Lessor the taxes 
attributable to Lessee within ten (10) days after receipt of a written 
statement setting forth the taxes applicable to Lessee's property.

     11. UTILITIES. Lessee shall pay for all water, gas, heat, light, power, 
telephone and other utilities and services supplied to the Premises, together 
with any taxes thereon. If any such services are not separately metered to 
the Premises, Lessee shall pay Lessee's Share of all charges jointly metered 
with other premises in the Building.

     12. ASSIGNMENT AND SUBLETTING.

          12.1 LESSOR'S CONSENT REQUIRED. Lessee shall not voluntarily or by 
operation of law assign, transfer, mortgage, sublet, or otherwise transfer or 
encumber all or any part of Lessee's interest in the lease or in the 
Premises, without Lessor's prior written consent, which Lessor shall not 
unreasonably withhold. Lessor shall respond to Lessee's request for consent 
hereunder in a timely manner and any attempted assignment, transfer, 
mortgage, encumbrance or subletting without such consent shall be void, and 
shall constitute a breach of this Lease without the need for notice to Lessee 
under paragraph 13.1.

          12.2 LESSEE AFFILIATE. Notwithstanding the provisions of paragraph 
12.1 hereof, Lessee may assign or sublet the Premises, or any portion 
thereof, without Lessor's consent, to any corporation which controls, is 
controlled by or is under common control with Lessee, or to any corporation 
resulting from the merger or consolidation with Lessee, or to any person or 
entity which acquires all the assets of Lessee as a going concern of the 
business that is being conducted on the Premises, all of which are referred 
to as "Lessee Affiliate," provided that before such assignment shall be 
effective said assignee shall assume, in full, the obligations of Lessee 
under this Lease. Any such assignment shall not, in any way, affect or limit 
the liability of Lessee under the terms of this Lease.

          12.3 TERMS AND CONDITIONS OF ASSIGNMENT. Regardless of Lessor's 
consent, no assignment shall release Lessee of Lessee's obligations hereunder 
or alter the primary liability of Lessee to pay the Base Rent and Lessee's 
Share of Operating Expenses, and to perform all other obligations to be 
performed by Lessee hereunder. Lessor may accept rent from any person other 
than Lessee

                                      -18-


pending approval or disapproval of such assignment. Neither a delay in the 
approval or disapproval of such assignment nor the acceptance of rent shall 
constitute a waiver or estoppel of Lessor's right to exercise its remedies 
for the breach of any of the terms or conditions of this paragraph 12 or this 
Lease. Consent to one assignment shall not be deemed consent to any 
subsequent assignment. In the event of default by any assignee of Lessee or 
any successor of Lessee, in the performance of any of the terms hereof, 
Lessor may proceed directly against Lessee without the necessity of 
exhausting remedies against said assignee.

          12.4 TERMS AND CONDITIONS APPLICABLE TO SUBLETTING. Regardless of 
Lessor's consent, the following terms and conditions shall apply to any 
subletting by Lessee of all or any part of the Premises and shall be included 
in subleases:

               (a) There is no paragraph 12.4(a) to this Lease.

               (b) No sublease entered into by Lessee shall be effective 
unless and until it has been approved in writing by Lessor. In entering into 
any sublease, Lessee shall use only such form of sublease as is satisfactory 
to Lessor, and once approved by Lessor, such sublease shall not be changed or 
modified without Lessor's prior written consent. Any sublessee shall, by 
reason of entering into a sublease under this Lease, be deemed, for the 
benefit of Lessor, to have assumed and agreed to conform and comply with each 
and every obligation herein to be performed by Lessee other than such 
obligations as are contrary to or inconsistent with provisions contained in a 
sublease to which Lessor has expressly consented in writing.

               (c) If Lessee's obligations under this Lease have been 
guaranteed by third parties, then a sublease, and Lessor's consent thereto, 
shall not be effective unless said guarantors give their written consent to 
such sublease and the terms thereof.

               (d) The consent by Lessor to any subletting shall not release 
Lessee from its obligations or alter the primary liability of Lessee to pay 
the rent and perform and comply with all of the obligations of Lessee to be 
performed under this lease.

               (e) The consent by Lessor to any subletting shall not 
constitute a consent to any subsequent subletting by Lessee or to any 
assignment or subletting by the sublessee.

                                      -19-


               (f) In the event of any default under this Lease, Lessor may 
proceed directly against Lessee, any guarantors or any one else responsible 
for the performance of this Lease, including the sublessee, without first 
exhausting Lessor's remedies against any other person or entity responsible 
therefor to Lessor, or any security held by Lessor or Lessee.

               (g) In the event Lessee shall default in the performance of 
its obligations under this Lease, Lessor, at its option and without any 
obligation to do so, may require any sublessee to attorn to Lessor, in which 
event Lessor shall undertake the obligations of Lessee under such sublease 
from the time of the exercise of said option to the termination of such 
sublease; provided, however, Lessor shall not be liable for any prepaid rents 
or security deposit paid by such sublessee to Lessee or for any other prior 
defaults of Lessee under such sublease.

               (h) Each and every consent required of Lessee under a sublease 
shall also require the consent of Lessor.

               (i) No sublessee shall further assign or sublet all or any 
part of the Premises without Lessor's prior written consent.

               (j) Lessor's written consent to any subletting of the Premises 
by Lessee shall not constitute an acknowledgement that no default then exists 
under this Lease of the obligations to be performed by Lessee nor shall such 
consent be deemed a waiver of any then existing default, except as may be 
otherwise stated by Lessor at the time.

               (k) With respect to any subletting to which Lessor has 
consented, Lessor agrees to deliver a copy of any notice of default by Lessee 
to the sublessee. Such sublessee shall have the right to cure a default of 
Lessee within ten (10) days after service of said notice of default upon such 
sublessee, and the sublessee shall have a right of reimbursement and offset 
from and against Lessee for any such defaults cured by the sublessee.

          12.5 ATTORNEY'S FEES. In the event Lessee shall assign or sublet 
the Premises or request the consent of Lessor to any assignment or subletting 
or if Lessee shall request the consent of Lessor for any act Lessee proposes 
to do then Lessee shall pay Lessor's reasonable attorneys fees incurred in 
connection therewith, such attorneys fees not to exceed $350.00 for each such 
request.

                                      -20-


     13. DEFAULT; REMEDIES.

          13.1 DEFAULT. The occurrence of any one or more of the following 
events shall constitute a material default of this Lease by Lessee:

               (a) The failure by Lessee to make any payment of rent or any 
other payment required to be made by Lessee hereunder, as and when due, where 
such failure shall continue for a period of three (3) days after written 
notice thereof from Lessor to Lessee. In the event that Lessor serves Lessee 
with a Notice to Pay Rent or Quit pursuant to applicable Unlawful Detainer 
statutes such Notice to Pay Rent or Quit shall also constitute the notice 
required by this subparagraph.

               (b) Except as otherwise provided in this Lease, the failure by 
Lessee to observe or perform any of the covenants, conditions or provisions 
of' this Lease to be observed or performed by Lessee where such failure shall 
continue for a period of thirty (30) days after written notice thereof from 
Lessor to Lessee; provided, however, that if the nature of Lessee's 
noncompliance is such that more than thirty (30) days are reasonably required 
for its cure, then Lessee shall not be deemed to be in default if Lessee 
commenced such cure within said thirty (30) day period and thereafter 
diligently prosecutes such cure to completion. To the extent permitted by 
law, such thirty (30) day notice shall constitute the sole and exclusive 
notice required to be given to Lessee under applicable Unlawful Detainer 
statutes.

               (c) (i) The making by Lessee of any general arrangement or 
general assignment for the benefit of creditors; (ii) Lessee becomes a 
"debtor" as defined in 11 U.S.C. Section 101 or any successor statute thereto 
(unless, in the case of a petition filed against Lessee, the same is 
dismissed within ninety (90) days; (iii) the appointment of a trustee or 
receiver to take possession of substantially all of Lessee's assets located 
at the premises or of Lessee's interest in this Lease, where possession is 
not restored to Lessee within sixty (60) days; or (iv) the attachment, 
execution or other judicial seizure of substantially all of Lessee's assets 
located at the Premises or of Lessee's interest in this Lease, where such 
seizure is not discharged within sixty (60) days. In the event that any 
provision of this paragraph 13.1(d) is contrary to any applicable law, such 
provision shall be of no force or effect.

               (d) The discovery by Lessor that any financial statement given 
to Lessor by Lessee, any assignee of Lessee, any subtenant of Lessee, any

                                      -21-


successor in interest of Lessee or any guarantor of Lessee's obligation
hereunder, was materially false.

          13.2 REMEDIES. In the event of any such material default by Lessee, 
Lessor may at any time thereafter, with or without notice or demand and 
without limiting Lessor in the exercise of any right or remedy which Lessor 
may have by reason of such default:

               (a) Terminate Lessee's right to possession of the Premises by 
any lawful means, in which case this Lease and the term hereof shall 
terminate and Lessee shall immediately surrender possession of the Premises 
to Lessor. In such event Lessor shall be entitled to recover from Lessee all 
damages incurred by Lessor by reason of Lessee's default including, but not 
limited to, the cost of recovering possession of the Premises; Improvement 
Loan Balance; expenses of reletting, including necessary renovation and 
alteration of the Premises, reasonable attorney's fees, and any real estate 
commission actually paid; the worth at the time of award by the court having 
jurisdiction thereof of the amount by which the unpaid rent for the balance 
of the term after the time of such award exceeds the amount of such rental 
loss for the same period that Lessee proves could be reasonably avoided; that 
portion of the leasing commission paid by Lessor pursuant to paragraph 15 
applicable to the unexpired term of this Lease.

               (b) Maintain Lessee's right to possession in which case this 
Lease shall continue in effect whether or not Lessee shall have vacated or 
abandoned the Premises. In such event Lessor shall be entitled to enforce all 
of Lessor's rights and remedies under this Lease, including the right to 
recover the rent as it becomes due hereunder and the Improvement Loan Balance.

               (c) Pursue any other remedy now or hereafter available to 
Lessor under the laws or judicial decisions of the state wherein the Premises 
are located. Unpaid installments of rent and other unpaid monetary 
obligations of Lessee under the terms of this Lease shall bear interest from 
the date due at the maximum rate then allowable by law.

          13.3 DEFAULT BY LESSOR. Lessor shall not be in default unless 
Lessor fails to perform obligations required of Lessor within a reasonable 
time, but in no event later than thirty (30) days after written notice by 
Lessee to Lessor and to the holder of any first mortgage or deed of trust 
covering the Premises whose name and address shall have theretofore been 
furnished to Lessee in writing, specifying wherein Lessor has failed to 
perform such obligation; provided, however, that if the

                                      -22-


nature of Lessor's obligation is such that more than thirty (30) days are 
required for performance then Lessor shall not be in default if Lessor 
commences performance within such thirty (30) day period and thereafter 
diligently prosecutes the same to completion.

          13.4 LATE CHARGES. Lessee hereby acknowledges that late payment by 
Lessee to Lessor of Base Rent, Lessee's Share of Operating Expenses or other 
sums due hereunder will cause Lessor to incur costs not contemplated by this 
Lease, the exact amount of which will be extremely difficult to ascertain. 
Suck costs include, but are not limited to, processing and accounting 
charges, and late charges which may be imposed on Lessor by the terms of any 
mortgage or trust deed covering the Property. Accordingly, if any installment 
of Base Rent, Operating Expenses, or any other sum due from Lessee shall not 
be received by Lessor or Lessor's designee within ten (10) days after such 
amount shall be due, then, without any requirement for notice to Lessee, 
Lessee shall pay to Lessor a late charge equal to 3% of such overdue amount. 
The parties hereby agree that such late charge represents a fair and 
reasonable estimate of the costs Lessor will incur by reason of late payment 
by Lessee. Acceptance of such late charge by Lessor shall in no event 
constitute a waiver of Lessee's default with respect to such overdue amount, 
nor prevent Lessor from exercising any of the other rights and remedies 
granted hereunder. In the event that a late charge is payable hereunder, 
whether or not collected, for three (3) consecutive installments of any of 
the aforesaid monetary obligations of Lessee, then Base Rent shall 
automatically become due and payable quarterly in advance, rather than 
monthly, notwithstanding paragraph 4.1 or any other provision of this Lease 
to the contrary.

          14. CONDEMNATION. If the Premises or any portion thereof or the 
Property are taken under the power of eminent domain, or sold under the 
threat of the exercise of said power (all of which are herein called 
"condemnation"), this Lease shall terminate as to the part so taken as of the 
date the condemning authority takes title or possession, whichever first 
occurs. If more than ten percent of the floor area of the Premises, or more 
than twenty-five percent of that portion of the Common Areas designated as 
parking for the Property is taken by condemnation, Lessee may, at Lessee's 
option, to be exercised in writing only within ten (10) days after Lessor 
shall have given Lessee written notice of such taking (or in the absence of 
such notice, within ten (10) days after the condemning authority shall have 
taken possession) terminate this Lease as of the date the condemning 
authority takes such possession. If Lessee does not terminate this Lease in 
accordance with the foregoing, this Lease shall remain in full force and 
effect as to the portion of the premises remaining, except that the rent 
shall be reduced in the proportion that the

                                      -23-


floor area of the Premises taken bears to the total floor area of the 
Premises. No reduction of rent shall occur if the only area taken is that 
which does not have the Premises located thereon. Any award for the taking of 
all or any part of the Premises under the power of eminent domain or any 
payment made under threat of the exercise of such power shall be the property 
of Lessor, whether such award shall be made as compensation for diminution in 
value of the leasehold or for the taking of the fee, or as severance damages, 
provided, however, that Lessee shall be entitled to any award for loss or 
damage to Lessee's trade fixtures and removable personal property. In the 
event that this Lease is not terminated by reason of such condemnation, 
Lessor shall to the extent of severance damages received by Lessor in 
connection with such condemnation, repair any damage to the Premises caused 
by such condemnation except to the extent that Lessee has been reimbursed 
therefor by the condemning authority. Lessee shall pay any amount in excess 
of such severance damages required to complete such repair.

     15. BROKER'S FEE. Lessor shall pay all brokerage commissions arising out 
of this transaction in accordance with the terms of a separate brokerage 
agreement. Such commissions shall include, without limitation, those due to 
McMasters & Westland/TRI, Coldwell Banker and Tom Bridges.

     16. ESTOPPEL CERTIFICATE.

         (a) Each party (as "responding party") shall at any time upon not 
less than ten (10) days prior written notice from the other party 
("requesting party") execute, acknowledge and deliver to the requesting party 
a statement in writing (i) certifying that this Lease is unmodified and in 
full force and effect (or, if modified, stating the nature of such 
modification and certifying that this Lease, as so modified, is in full force 
and effect) and the date to which the rent and other charges are paid in 
advance, if any, and (ii) acknowledging that there are not, to the responding 
party's knowledge, any uncured defaults on the part of the requesting party, 
or specifying such defaults if any are claimed. Any such statement may be 
conclusively relied upon by any prospective purchaser or encumbrancer of the 
Premises or of the business of the requesting party.

          (b) At the requesting party's option, the failure to deliver such 
statement within such time shall be a material default of this Lease by the 
party who is to respond, without any further notice to such party, or it 
shall be conclusive upon such party that (i) this Lease is in full force and 
effect, without modification except as may be represented by the requesting 
party, (ii) there are no uncured

                                      -24-


defaults in the requesting party's performance, and (iii) if Lessor is the
requesting party, not more than one month's rent has been paid in advance.

              (c) If Lessor desires to finance, refinance, or sell the Property,
or any part thereof, Lessee hereby agrees to deliver to any lender or 
purchaser designated by Lessor such financial statements of Lessee as may be 
reasonably required by such lender or purchaser. Such statements shall 
include the past three (3) years' financial statements of Lessee. All such 
financial statements shall be received by Lessor and such lender or purchaser 
in confidence and shall be used only for the purposes herein set forth.

          17. LESSOR'S LIABILITY. The term "Lessor" as used herein shall mean 
only the owner or owners, at the time in question, of the fee title or a 
Lessee's interest in a ground lease of the Property, and except as expressly 
provided in paragraph 15, in the event of any transfer of such title or 
interest, Lessor herein named (and in case of any subsequent transfers then 
the grantor) shall be relieved from and after the date of such transfer of 
all liability as respects Lessor's obligations thereafter to be performed, 
provided that any funds in the hands of Lessor or the then grantor at the 
time of such transfer, in which Lessee has an interest, shall be delivered to 
the grantee. The obligations contained in this Lease to be performed by 
Lessor shall, subject as aforesaid, be binding on Lessor's successors and 
assigns, only during their respective periods of ownership.

          18. SEVERABILITY. The invalidity of any provision of this Lease as 
determined by a court of competent jurisdiction, shall in no way affect the 
validity of any other provision hereof.

          19. INTEREST ON PAST-DUE OBLIGATIONS. Except as expressly herein 
provided, any amount due to Lessor not paid when due shall bear interest at 
the maximum rate then allowable by law from the date due. Payment of such 
interest shall not excuse or cure any default by Lessee under this Lease; 
provided, however, that interest shall not be payable on late charges 
incurred by Lessee nor on any amounts upon which late charges are paid by 
Lessee.

          20. TIME OF ESSENCE. Time is of the essence with respect to the 
obligations to be performed under this Lease.

          21. ADDITIONAL RENT. All monetary obligations of Lessee to Lessor 
under the terms of this Lease, including but not limited to Lessee's share of 
Operating

                                      -25-


Expenses, insurance and tax expenses payable, and payments under Paragraph 48 of
this Lease shall be deemed to be rent.

          22. INCORPORATION OF PRIOR AGREEMENTS; AMENDMENTS. This Lease 
contains all agreements of the parties with respect to any matter mentioned 
herein. No prior or contemporaneous agreement or understanding pertaining to 
any such matters shall be effective. This Lease may be modified in writing 
only, signed by the parties in interest at the time of the modification. 
Except as otherwise stated in this Lease, Lessee hereby acknowledges that 
neither the real estate broker listed in paragraph 15 hereof nor any 
cooperating broker on this transaction nor the Lessor or any employee or 
agents of any of said persons has made any oral or written warranties or 
representations to Lessee relative to the condition or use by Lessee of the 
Premises or the Property and Lessee acknowledges that Lessee assumes all 
responsibility regarding the Occupational Safety Health Act, the legal use 
and adaptability of the Premises and the compliance thereof with all 
applicable laws and regulations in effect during the term of this Lease 
except as otherwise specifically stated in this Lease.

          23. NOTICES. Any notice required or permitted by the terms of this 
Lease shall be given in writing and may be given by personal delivery or by 
certified mail. Such notice shall be deemed sufficiently given if addressed 
to Lessee or to Lessor at the address noted below the signature of the 
respective parties, as the case may be. Notices shall be deemed delivered 
upon delivery, if delivered personally, or five (5) days after deposit in the 
United States Mail with proper postage and address. either party may by 
notice to the other specify a different address for notice purposes. Upon 
Lessee's taking possession of the Premises, the Premises shall automatically 
become Lessee's address for notice purposes unless otherwise specified.

          24. WAIVERS. No waiver by either party of any provision hereof 
shall be deemed a waiver of any other provision hereof or of any subsequent 
breach by the other party of the same or any other provision. A party's 
consent to, or approval of, any act shall not be deemed to render unnecessary 
the obtaining of that party's consent to or approval of any subsequent act. 
The acceptance of rent hereunder by Lessor shall not be a waiver of any 
preceding breach by Lessee of any provisions hereof other than the failure of 
Lessee to pay the particular rent so accepted, regardless of Lessor's 
knowledge of such preceding breach at the time of acceptance of such rent.

                                      -26-


          25. RECORDING. Either Lessor or Lessee shall, upon request of the 
other, execute, acknowledge and deliver to the other a "short form" 
memorandum of this Lease for recording purposes.

          26. HOLDING OVER. If Lessee, with Lessor's consent, remains in 
possession of the Premises or any part thereof after the expiration of the 
term hereof, such occupancy shall be a tenency from month to month upon all 
the provisions of this Lease pertaining to the obligations of Lessee, but all 
Options, if any, granted under the terms of this Lease shall be deemed 
terminated and be of no further effect during said month to month tenancy.

          27. CUMULATIVE REMEDIES. No remedy or election hereunder shall be 
deemed exclusive but shall, wherever possible, be cumulative with all other 
remedies at law or in equity.

          28. COVENANTS AND CONDITIONS. Each provision of this Lease shall be 
deemed both a covenant and a condition.

          29. BINDING EFFECT; CHOICE OF LAW. Subject to any provisions hereof 
restricting assignment or subletting by Lessee and subject to the provisions 
of paragraph 17, this Lease shall bind the parties, their personal 
representatives, successors and assigns. This Lease shall be governed by the 
laws of the State where the Property is located and any litigation concerning 
this Lease between the parties hereto shall be initiated in the county in 
which the Property is located.

          30. SUBORDINATION.

               (a) This Lease, and any Option granted hereby, at Lessor's 
option, shall be subordinate to any ground lease, mortgage, deed of trust, or 
any other hypothecation or security now or hereafter placed upon the Property 
and to any and all advances made on the security thereof and to all renewals, 
modifications, consolidations, replacements and extensions thereof. 
Notwithstanding such subordination, Lessee's right to quiet possession of the 
Premises shall not be disturbed if Lessee is not in default and so long as 
Lessee shall pay the rent and observe and perform all of the provisions of 
this lease, unless this Lease is otherwise terminated pursuant to its terms. 
If any mortgagee, trustee or ground Lessor shall elect to have this Lease and 
any Options granted hereby prior to the lien of its mortgage, deed of trust 
or ground lease, and shall give written notice thereof to Lessee, this Lease 
and such Options shall be deemed prior to such

                                      -27-


mortgage, deed of trust or ground lease, whether this Lease or such Options 
are dated prior or subsequent to the date of said mortgage, deed of trust or 
ground lease or the date of recording thereof.

               (b) Lessee agrees to execute any documents required to 
effectuate an attornment, a subordination or to make this Lease or any Option 
granted herein prior to the lien of any mortgage, deed of trust or ground 
lease, as the case may be. Lessee's failure to execute such documents within 
ten (10) days after written demand shall constitute material default by 
Lessee hereunder without further notice to Lessee or, at Lessor's option, 
Lessor shall execute the document attached as Exhibit B on behalf of Lessee 
as Lessee's attorney-in-fact. Lessee does hereby make, constitute and 
irrevocably appoint Lessor as Lessee's attorney-in-fact and in Lessee's name, 
place and stead, to execute such document in accordance with this paragraph 
30(b).

          31. ATTORNEY'S FEES. If either party named herein bring an action 
to enforce the terms hereof or declare rights hereunder, the prevailing party 
in any such action, on trial or appeal, shall be entitled to his reasonable 
attorney's fees to be paid by the losing party as fixed by the court.

          32. LESSOR'S ACCESS. Lessor and Lessor's agents shall have the 
right to enter the Premises at reasonable times upon one day's advance 
written notice (except in emergencies) for the purpose of inspecting the 
same, showing the same to prospective purchasers, lenders, or Lessees, and 
making such alterations, repairs, improvements or additions to the Premises 
or to the building of which they are part as Lessor may deem necessary or 
desirable. Lessor may at any time during the last 180 days of the term hereof 
place on or about the Premises any ordinary "For Lease" signs. All activities 
of Lessor pursuant to this paragraph shall be without abatement of rent, nor 
shall Lessor have any liability to Lessee for the same. Notwithstanding any 
provision of this Lease to the contrary, Lessee may absolutely exclude Lessor 
from any portion of the Premises that Lessee must keep secure in order to 
maintain its security clearance or its status as a government contractor; 
provided that this sentence shall not be construed to prevent Lessor from 
exercising remedies under paragraph 13.

          33. AUCTIONS. Lessee shall not conduct, nor permit to be conducted, 
either voluntarily or involuntarily, any auction upon the Premises or the 
Common Areas without first having obtained Lessor's prior written consent.

                                      -28-


          34. SIGNS. Lessee may place any signage it desires upon the outside 
of the exterior walls of the Premises, within the Premises, or upon the roof 
of the Premises without Lessor's consent; provided that such signage conforms 
with any signage ordinances or programs in effect within the industrial park 
in which the Leased Premises are located. Lessor may require that Lessee 
remove any signage at the end of the Lease term, as extended, and Lessee 
shall repair any damage to the Property occasioned by its installation, 
maintenance, or removal of its signage.

          35. MERGER. The voluntary or other surrender of this Lease by 
Lessee, or a mutual cancellation thereof, or a termination by Lessor, shall 
not work a merger.

          36. CONSENTS. Wherever in this Lease the consent of one party is 
required to an act of the other party such consent shall not be unreasonably 
withheld or delayed.

          37. GUARANTOR. In the event that there is a guarantor of this 
Lease, said guarantor shall have the same obligations as Lessee under this 
Lease.

          38. QUIET POSSESSION. Upon Lessee paying the rent for the Premises 
and observing and performing all of the covenants, conditions and provisions 
on Lessee's part to be observed and performed hereunder, Lessee shall have 
quiet possession of the Premises for the entire term hereof subject to all of 
the provisions of this Lease. The individuals executing this Lease on behalf 
of Lessor represent and warrant to Lessee that they are fully authorized and 
legally capable of executing this Lease on behalf of Lessor and that such 
execution is binding upon all parties holding an ownership interest in the 
Property.

          39. OPTION TO EXTEND TERM.

               39.1 OPTION. Provided Lessee is not in default in the 
performance of any of its obligations under this Lease, Lessee shall have the 
right, at its option, to extend the term of this Lease for five (5) years 
(the "Extended Term"). The lease of the Premises during the Extended Term 
shall be upon the same terms, covenants and conditions as are set forth in 
this Lease other than "rent", "term of the leasehold" and "this Option." If 
Lessor does not receive from Lessee written notice of Lessee's exercise of 
this option the "Option Notice") before the date one hundred eighty (180) 
days prior to the termination of the initial ten (10) year lease term, this 
option shall terminate.


                                      -29-


          39.2 RENT.

               (a) The monthly rent for the first year of the Extended Term 
shall be determined as follows: The Consumer Price Index ("CPI") figure shall 
be established the month of March, 1991, and the month of March, 2001. The 
Base Rent for the first month of the Extended Term shall be equal to the 
greater of (i) the preceding month's rent or (ii) $21,381.00 increased by the 
same percentage, if any, by which the March, 2001, CPI figure shall have 
increased over the March, 1991, CPI figure. As used herein, the term 
"Consumer Price Index" shall refer to the "Consumer Price Index For All Urban 
Consumers San Francisco-Oakland Metropolitan Area (All Items)" compiled by 
the U.S. Department of Labor, Bureau of Labor Statistics (1982-84 equals 
100). If the CPI should hereafter be changed, then the new base shall be 
converted to the 1982-84 base and the base as so converted shall be used. In 
the event that the Bureau shall cease to publish the Consumer Price Index, 
then the successor or most nearly comparable index thereto shall by used. The 
monthly rent for years two through five of the Extended term shall be 
determined by a three (3) percent increase from the immediately preceding 
year's monthly rent.

               (b) After the initial monthly rent for the Extended Term has 
been set, Lessee shall have the option to let this Lease expire at the end of 
the initial term. Lessee's election to allow this Lease to expire at the end 
of the initial term must be exercised within ten (10) days after receipt of 
notice from the Lessor of the initial monthly rent for the Extended Term. If 
Lessee does not exercise its election within the ten (10) day period, the 
term of the Lease shall be extended as provided in this paragraph.

          39.3 EFFECT OF DEFAULT. Notwithstanding the timely giving of the 
Option Notice, if Lessee is in default of any provision of the Lease on the 
date of commencement of the Extended Term at Lessor's option, all rights of 
Lessee under this option shall terminate and be of no force and effect.

     40. SECURITY MEASURES. Lessee hereby acknowledges that Lessor shall have 
no obligation whatsoever to provide guard service or other security measures 
for the benefit of the premises or the Property. Lessee assumes all 
responsibility for the protection of Lessee, its agents, and invitees and the 
property of Lessee and of Lessee's agents and invitees from acts of third 
parties. Nothing herein contained shall prevent Lessor, at Lessor's sole 
option, from providing security protection for the Property or any part 
thereof.


                                      -30-


     41. EASEMENTS. Lessor reserves to itself the right, from time to time, 
to grant such easements, rights and dedications that Lessor deems necessary 
or desirable, and to cause the recordation of Parcel Maps and restrictions, 
so long as such easements, rights, dedications, Maps and restrictions do not 
interfere with the use of the Premises and parking lots by Lessee. Lessee 
shall sign any of the aforementioned documents upon request of Lessor and 
failure to do so shall constitute a material default of this Lease by Lessee 
without the need for further notice to Lessee.

     42. PERFORMANCE UNDER PROTEST. If at any time a dispute shall arise as 
to any amount or sum of money to be paid by one party to the other under the 
provisions hereof, the party against whom the obligation to pay the money is 
asserted shall have the right to make payment "under protest" and such 
payment shall not be regarded as a voluntary payment, and there shall survive 
the right on the part of said party to institute suit for recovery of such 
sum. If it shall be adjudged that there was no legal obligation on the part 
of said party to pay such sum or any part thereof, said party shall be 
entitled to recover such sum or so much thereof as it was not legally 
required to pay under the provisions of this Lease.

     43. AUTHORITY. If a party is a corporation, trust, or general or limited 
partnership, each individual executing this Lease on behalf of such entity 
represents and warrants that he or she is duly authorized to execute and 
deliver this Lease on behalf of said entity. If a party is a corporation, 
trust or partnership, it shall, within thirty (30) days after execution of 
this Lease, deliver to the other party evidence of such authority 
satisfactory to such party.

     44. CONFLICT. Any conflict between the printed provisions of this Lease 
and the typewritten or handwritten provisions, if any, shall be controlled by 
the typewritten or handwritten provisions.

     45. There is no paragraph 45 to this Lease.

     46. There is no paragraph 46 to this Lease.

     47. PREMISES IMPROVEMENTS, ALTERATIONS AND REPAIRS. At Lessor's sole 
cost and expense, thirty (30) days prior to the Rent Commencement Date, 
Lessor shall make the improvements to the Premises set forth on Exhibit C, 
Schedule of Financial Obligations, which is incorporated herein. Those 
improvements set forth


                                      -31-


on Exhibit C are the only improvements for which Lessor is obligated to pay. 
Upon Lessor or Lessee obtaining financing for the Improvement Loan specified 
in paragraph 48, Lessor shall deposit Two Hundred Thousand Dollars 
($200,000.00), less any amounts previously expended by Lessor on its 
financial obligations under this Lease, into an escrow account of its 
choosing to be used in payment of Lessors financial obligations under this 
Lease.

          47.1 OFFICE SPACE. Lessor shall "spruce-up" the Office Space, as 
identified on Exhibit A. Such may include (a) the replacement of existing 
carpets with new standard grade carpets or, at the option of Lessee, 
"BurkeBase," (b) the repainting of the entire area and the painting or 
replacement of all other types of wall treatments and ceiling tiles, (c) 
where necessary, the repair or replacement of window treatments, (d) where 
necessary, the repair or replacement of electrical and plumbing fixtures and 
(e) the repair or replacement of all HVAC, electrical, and plumbing such that 
all systems are in good operating condition. Burke Industries' products shall 
be used in the refurbishment when and where possible.

          47.2 WAREHOUSE AREA. Where necessary, Lessor shall repair or 
replace, all existing systems within the warehouse portion of the Premises to 
assure that they are in good working order. Such systems include all HVAC, 
electrical, plumbing and loading doors. Lessor shall assure that all doors, 
windows, lights and restrooms are in proper working order. Lessor shall 
install lighting such that an illumination of 70 Lumens is maintained 
throughout the warehouse area.

          47.3 RAILROAD SIDING. The parties acknowledge that a below 
floor-level railroad siding (the "Siding") is located within the Premises. 
Prior to Lessee's occupancy of the Premises, Lessor shall either (i) 
construct a framework over the Siding and cover such framework with a 
flooring material reasonably satisfactory to Lessee in such a manner that the 
flooring material is flush with the existing floor. or (ii) surround the 
Siding with a safety barrier and decrease the monthly Base Rent for the 
Premises throughout the term of this Lease and any extension hereof 
proportionately to the decrease in the rentable square footage of the 
Premises occasioned by the loss of use of the area within such safety barrier.

          47.4 SEPARATE CLARIFIER. When another tenant occupies the Building, 
Lessor shall install, at its sole cost and expense, a clarifier which will 
enable a governmental agent to test the sewage generated by tenants in the 
Building other than Lessee.


                                      -32-


          48. IMPROVEMENT LOAN. Lessor and Lessee shall each use its best 
efforts to obtain financing to pay for Lessee's installation of Manufacturing 
Improvements($500,000.00) and Lessee's portion of the installation of the new 
sprinkler system ($75,000.00), a total of Five Hundred Seventy-Five Thousand 
Dollars ($575,000.00) (hereinafter, the "Improvement Loan"). Lessor shall use 
its best efforts to obtain the best rates and conditions available for the 
financing. If the financing for the Improvement Loan is obtained by the 
Lessor, Lessee shall pay Lessor, in addition to the Base Rent as set forth in 
paragraph 4, the Improvement Loan, amortized over a ten-year term at the same 
interest rate being paid by Lessor for the financing of the Improvement Loan. 
However, if this Lease is terminated earlier than ten years, the Improvement 
Loan Balance, as defined below, shall be paid by Lessee to Lessor upon said 
earlier termination. Lessee shall also be responsible for the payment of its 
proportionate percentage of costs associated with Lessor's obtaining the 
financing for the Improvement Loan, and Lessee shall immediately reimburse 
Lessor for such costs paid by Lessor. For example, if Lessor finances a total 
of Eight Hundred Fifty Thousand Dollars ($850,000), Lessee's proportionate 
percentage of financing costs shall be 68% (575,000.00 DIVIDED BY 850,000.00). 
Wherever used in this Lease, the term "Improvement Loan Balance" shall mean 
the amount of the initial Improvement Loan plus interest accrued thereon 
minus all payments made by Lessee to Lessor towards the Improvement Loan. The 
proceeds of the Improvement Loan shall be used by Lessee for the acquisition 
and installation of certain processing and manufacturing improvements to be 
installed by Lessee (the "Manufacturing Improvements") ($500,000.00) and for 
Lessee's portion of the costs of the sprinkler system as described in 
paragraph 6.3(b) ($75,000.00). If the cost of the Manufacturing Improvements 
exceeds Five Hundred Thousand Dollars ($500,000.00), then Lessee shall pay 
the amount of such excess (together with all other costs and expenses which 
are not the responsibility of Lessor under paragraphs 6(b), 47 and 52). If 
the financing for the Improvement Loan is obtained by Lessee, the costs of 
obtaining such shall be exclusively the responsibility of Lessee. In the 
event financing for the Improvement Loan is obtained by the Lessee, Lessor 
shall have the right to continue to seek financing for the Improvement Loan, 
and if Lessor subsequently obtains financing for the Improvement Loan, Lessor 
may pay such to Lessee pursuant to the terms of paragraph 4 of this Lease. In 
the event that neither Lessor nor Lessee has obtained financing for the 
Improvement Loan by November 1, 1991, either party may terminate this Lease 
by providing written notice to the other party. In the event this Lease is 
terminated pursuant to this provision, neither party shall be obligated to 
reimburse the other party for any funds expended in connection with any 
aspect of this Lease; however, Lessor shall return the amount of the Security 
Deposit to Lessee.


                                      -33-


          49. LEASE TERMINATION. Beginning six (6) years after the Rent 
Commencement Date, Lessee shall have the right to terminate this Lease at 
any time upon six (6) months advance written notice to Lessor, upon full 
payment of the Improvement Loan Balance and payment of Additional Rent. Upon 
such termination all terms set forth in paragraph 7.2(c) shall apply. The 
amount of Additional Rent to be paid shall be determined by the date Lessee 
provides Lessor with Notice of Termination as set forth below:

  DATE NOTICE OF TERMINATION GIVEN                ADDITIONAL RENT

    Months 67 through 78                          6 months of base rent 
    Months 79 through 90                          5 months of base rent 
    Months 91 through 102                         4 months of base rent 
    Months 103 through 120                        3 months of base rent 

          50. EXPANSION RIGHT. If during the term of this Lease, or any 
extension thereof, there is unoccupied (available) space in the Building, 
Lessee may lease all or a portion of said available space for a period as 
long as the remainder of the term plus any Extended Term or as short as one 
year at the then prevailing rental rate per square foot to be paid by Lessee 
for the Premises under Column A of Exhibit A-1, "Schedule of Monthly Base 
Rental Payments". For example, if beginning with Month 30 of the Lease, 
Lessee choses to lease an additional 10,000 square feet of the Premises for 
one year, Lessee's additional Base Monthly Rent would be $2,122 
[$22,682 DIVIDED BY 106,906 x 10,000] for months 30 through 36 and $2,185 
[$23,362 DIVIDED BY 106,906 x 10,000] for months 37 through 41.

          51. OPTION TO PURCHASE. Lessor hereby  grants Lessee an option to 
purchase the Property during the term of the Lease, including any Extended 
Term. The price shall be Four Million Three Hundred Thousand Dollars 
($4,300,000) until the end of the fifth (5th) year of the Lease and shall 
increase by five percent (5%) for each year thereafter of the Lease and, if 
exercised, its Extension. The option shall be exercised by sending written 
notice to Lessor electing to purchase the Property. Lessee may not exercise 
its option to purchase the Property if Lessee is in default of this Lease as 
defined in paragraph 13.1.

          52. HAZARDOUS MATERIALS.

               52.1 LESSEE'S OBLIGATIONS. Subject to the remaining provisions 
of this paragraph, Lessee shall be entitled to use and store only those 
Hazardous Materials (defined below), that are necessary for Lessee's 
business, provided that


                                      -34-


such usage and storage is in full compliance with all applicable local, state 
and federal statutes, orders, ordinances, rules and regulations (as 
interpreted by judicial and administrative decisions). Lessor, at its sole 
cost and expense, shall have the right upon one day's advance written notice 
to (i) inspect the Premises, (ii) conduct test and investigations to 
determine whether Lessee is in compliance with the provisions of this 
paragraph, and (iii) request lists of all Hazardous Materials used, stored or 
located on the Premises. Lessee shall give to Lessor immediate verbal and 
follow-up written notice of any spills, releases or discharges of Hazardous 
Materials (in amounts exceeding the applicable reportable quantities (if any) 
for such Hazardous Materials in 40 C.F.R. Section 302.4) on the Premises, or 
in any common areas or parking lots, caused by the acts or omissions of 
Lessee, or its agents, employees, representatives, invitees, licensees, 
subtenants, customers or contractors. Lessee covenants to comply with all 
applicable governmental requirements with respect to any spill, release or 
discharge of Hazardous Materials caused by the acts or omissions of Lessee, 
or its agents, employees, representatives, invitees, licensees, subtenants, 
customers, or contractors at Lessee's cost and expense; any required 
remediation shall be performed after Lessee has obtained Lessor's written 
consent, which shall not be unreasonably withheld; provided, however, that 
Lessee shall be entitled to respond immediately to an emergency without first 
obtaining Lessor's written consent. Lessee shall indemnify, defend and hold 
Lessor harmless from and against any and all claims, judgments, damages, 
penalties, fines, liabilities, losses, suits, administrative proceedings and 
costs (including, but not limited to, attorneys, and consultant fees) arising 
from or related to the use presence, transportation, storage, disposal, 
spill, release or discharge of Hazardous Materials on or about the Premises 
caused by the acts or omissions of Lessee, its agents, employees, 
representatives, invitees, licensees, subtenants customers or contractors, 
Lessee shall not be entitled to install any tanks under, on, or about the 
Premises for the storage of Hazardous Materials without the express written 
consent of Lessor, which may be given or withheld in Lessor's sole 
discretion. As used in this Agreement, the term Hazardous Materials shall 
mean (i) any wastes, materials or substances which are or become designated, 
classified or regulated as "hazardous", "toxic" or a "pollutant" under any 
local, state or federal laws; (ii) petroleum, petroleum products or any 
petroleum contaminated soils or sludges; (iii) asbestos; (iv) polychlorinated 
biphenyls ("PCBs"); and (v) radioactive materials. The provisions of this 
paragraph shall survive the termination of this Lease.

          52.2 LESSOR'S OBLIGATIONS. Lessor warrants that the Property (which 
for purposes of this paragraph 52 shall include, without limitation, the 
Building and the Premises) complies with all local, state and federal laws 
and regulations pertaining to Hazardous Materials as of the completion of the 
Remediation Period


                                      -35-


(as defined below). Lessor covenants to promptly remove or otherwise remediate,
as required by all applicable laws, any Hazardous Materials existing on, under
or around the Property at any time during the term of the Lease, except for
those that Lessor can reasonably prove were introduced by Lessee. Lessor shall
indemnify, defend and hold Lessee harmless from and against any and all claims,
judgments, damages, penalties, fines, liabilities, losses, suits, administrative
proceedings and costs (including, but not limited to, attorneys and consultant
fees) arising from or related to the presence and/or threatened release of
Hazardous Materials on or under the Property or the presence of Hazardous
Materials on other properties that have transmigrated from the Property other
than those that Lessor reasonably proves were introduced on, under or around the
Property by Lessee. Throughout the term of this Lease, Lessor shall cause all
other tenants of the Building to execute leases containing the provisions set
forth in paragraph 52.1 and shall use its best efforts to enforce such lease
clauses. Lessor shall promptly inform Lessee of any spill, release, threatened
release or discharge of Hazardous Materials on the Property. The provisions of
this paragraph shall survive the termination of this Lease.

          52.3 UNDERGROUND TANKS, REMEDIATION. The parties acknowledge that 
there are currently three underground fuel tanks on the Property. Within 
ninety (90) days after the date of this Lease (the "Remediation Period") 
Lessor shall conduct soils and other tests around the' tanks in a manner 
acceptable to all governmental agencies having jurisdiction over the tanks 
("Enforcement Agencies") and either (i) remove the three tanks and remediate 
any leakage in accordance with all applicable laws and to the satisfaction of 
all Enforcement Agencies and receive written acknowledgement of such 
compliance and satisfaction from each Enforcement Agency or (ii) if no 
remediation is necessary or required by any Enforcement Agency, legally 
abandon such tanks (and receive a certificate of such abandonment) in 
accordance with all applicable laws concerning abandonment in place. Prior to 
the expiration of the Remediation Period, Lessor shall also remove, where 
required by any local, state and Federal law, all Hazardous Materials from 
the Property and take all steps necessary to comply with the warranties set 
forth in paragraph 52.2. Lessor's cost of completing any actions required 
under the paragraph shall not be an Operating Expense. If Lessor does not 
complete all work required under this paragraph within the Remediation 
Period, then Lessee may, at its option, either terminate this Lease or 
conduct all, none or a portion of such work and deduct any cost incurred 
therein from future rent. Prior to the expiration of the Remediation Period, 
Lessor shall also confirm the presence or absence of PCBs in any electrical 
transformers or other equipment located on the Property at the commencement 
of the Lease and shall remove any PCB containing materials from the Property 
in accordance with applicable requirements of law.


                                      -36-


          53. TERMINATION AND REPLACEMENT OF PRIOR LEASE. This Lease 
supersedes that certain Lease dated May 24, 1991 between the parties herein.

     LESSOR                                    LESSEE

ARTHUR D. BRIDGES FAMILY                  BURKE RUBBER COMPANY     
REVOCABLE TRUST                           a California corporation 

By /s/ Arthur D. Bridges                  By /s/ Rocco C. Genovese
   ---------------------------------         ---------------------------------
   ARTHUR D. BRIDGES, Trustee                ROCCO C. GENOVESE

                                             Chairman

By /s/ Beverly Bridges                    By /s/ Reed C. Wolthausen
   ---------------------------------         ---------------------------------
   BEVERLY BRIDGES, Trustee                  REED C. WOLTHAUSEN
                                             Director

Executed on July 1, 1991                  Executed on July 1, 1991

ADDRESS FOR NOTICES
AND RENT:                                 ADDRESS:

3223 Crow Canyon Road, Suite 270          2250 South 10th Street 
P. O. Box 157                             San Jose, CA 95112     
San Ramon, CA 9458
Executed on July 1, 1991                  Executed on July 1, 1991

ADDRESS FOR NOTICES
AND RENT:                                 ADDRESS:

3223 Crow Canyon Road, Suite 270          2250 South 10th Street
P. O. Box 157                             San Jose, CA 95112
San Ramon, CA 94583


                                       -37-


DESCRIPTION:
                                 EXHIBIT "A"

PARCEL NO. 1:


All that certain piece or parcel of land situated in and being a portion of 
the Northwest one-quarter of Section 35, Township 3 South, Range 9 East, 
Mount Diablo Base and Meridian, in the County of Stanislaus, State of 
California, being more particularly described as follows:

COMMENCING at the Northeast corner of the Northwest one-quarter of Section 
35, Township 3 South, Range 9 East, Mount Diablo Base and Meridian, thence 
South 89 degrees 54' 30" East along the North line of said Section 35, a 
distance of 27.13 feet to its intersection with the Centerline of a County 
Road known as Riverside Drive as conveyed by Deed recorded April l, 1932 in 
Book 467 page 206 of official records; thence South 0 degrees 30' 48" East 
along said center-line a distance of 153.00 feet; thence North 89 degrees 54'
30" West, along the South line of a 60 foot street known as Lapham Drive 
and the easterly extension thereof a distance of 50.00 feet to the true point 
of beginning of this description, said point being on the westerly line of a 
50 foot strip described in Parcel No. 1 in the deed to County of Stanislaus, 
recorded December 4, 1964 in Book 1996 page 18 of Official Records, as 
Instrument  No. 47494 (being the additional width for Riverside Drive); 
thence continuing North 89 degrees 54' 30" West along said South line a 
distance of 143.47 feet; thence along the arc of a non tangent curve concave 
to the Southeast a distance of 318.38 feet, said curve having a central 
angle of 30 degrees 43' 12" and a radius of 593.81 feet (Chord bearing and 
distance South 42 degrees 58' 14" 314.58 feet); thence South 0 degrees 29' 
00" East a distance of 1037.71 feet; thence North 89 degrees 29' 12" East a 
distance of 360.48 feet to a point on the Westerly line of said Parcel No. 1 
described in the Deed recorded in book 1996 page 18 (Riverside Drive); thence 
North 0 degrees 30' 48" West along said westerly line a distance of 1264.44 
feet to the point of beginning.


                            EXHIBIT A - Page 1 of 3


                             EXHIBIT "A" (CONT'D)

PARCEL NO. 2:

All of that certain piece or parcel of land situated in and being a portion 
of the Northwest one-quarter of Section 35, Township 3 South, Range 9 East, 
Mount Diablo Base and Meridian, in the County of Stanislaus, State of 
California, being more particularly described as follows:

COMMENCING at the Northeast corner of the Northwest one-quarter of Section 
35, Township 3 South, Range 9 East, Mount Diablo Base and Meridian, thence 
South 89 degrees 54' 30" East along the North line of said Section 35 a 
distance of 27.13 feet to its intersection with the centerline of a County 
Road known as Riverside Drive as conveyed by deed recorded April 1, 1932 in 
book 467 page 206 of Official Records; thence South 0 degrees 30' 48" East 
along said center-line a distance of 153.00 feet; thence North 89 degrees 54' 
30" West along the south line of a 60 foot street known as Lapham Drive, and 
the Easterly extension thereof, a distance of 50.00 feet to a point on the 
Westerly line of a 50 foot strip described in Parcel No. 1 in the Deed to 
County of Stanislaus recorded December 4, 1964 in Book 19996 page 18 of 
Official Records, as Instrument No. 47494 (being the additional width for 
Riverside Drive, thence South 0 degrees 30' 48" East and along the Westerly 
line of said Parcel No. 1 as described in the Deed recorded in Book 1996 page 
18 (Riverside Drive), a distance of 1264.44 feet to the true point of 
beginning of this description; thence continuing South 0 degrees 30' 48" East 
along said Westerly line a distance of 553.49 feet; thence South 89 degrees 
29' 12" West a distance of 360.77 feet; thence North 0 degrees 29' 00" West a 
distance of 553.49 feet; thence North 89 degrees 29' 12" East a distance of 
360.48 feet to the point of beginning.

EXCEPTING THEREFROM that portion conveyed to Beard Land Improvement Company, 
a California Corporation by Deed recorded December 9, 1977 in book 2k996 page 
281, Official Records, as Instrument No. 37186, described as follows:

COMMENCING at the interior one-quarter corner of Section 35, Township 3 
South, Range 9 East, Mount Diablo Meridian; thence North 89 degrees 52' 56" 
West, a distance of 20.40 feet to the westerly line of a road known as 
Riverside Drive; thence North 0 degrees 30' 48" West along the westerly line 
of said Riverside Drive, a distance of 672.64 feet to the true POINT OF 
BEGINNING of this description; thence continue North 0 degrees 30' 48" West 
along said westerly line, a distance of 80.00 feet; thence South 89 degrees
29' 12" West, a distance of 360.73 feet to the easterly right of way of the 
Modesto & Empire Traction Company; thence South 0 degrees 29' 00" East along 
said easterly line, a distance of 80.00 feet; thence North 89 degrees 29' 
12" East a distance of 360.77 feet to the point of beginning.


                           EXHIBIT A - Page 2 of 3


                                Exhibit 'A'


                                [SITE PLAN]










                          EXHIBIT A - Page 3 of 3




                   SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS
                                       
                              Monthly Base Rent

                           A               B
          Month
          -----
           1            $  21,381       $  7,106
           2               21,381          7,106
           3               21,381          7,106
           4               21,381          7,106
           5               21,381          7,106
           6               21,381          7,106
           7               21,381          7,106
           8               21,381          7,106
           9               21,381          7,106
          10               21,381          7,106
          11               21,381          7,106
          12               21,381          7,106
          13               22,022          7,747
          14               22,022          7,747
          15               22,022          7,747
          16               22,022          7,747
          17               22,022          7,747
          18               22,022          7,747
          19               22,022          7,747
          20               22,022          7,747
          21               22,022          7,747
          22               22,022          7,747
          23               22,022          7,747
          24               22,022          7,747
          25               22,682          8,407
          26               22,682          8,407
          27               22,682          8,407
          28               22,682          8,407
          29               22,682          8,407
          30               22,682          8,407
          31               22,682          8,407
          32               22,682          8,407
          33               22,682          8,407
          34               22,682          8,407
          35               22,682         21,442
          36               22,682         28,407
          37               23,362         29,087
          38               23,362         29,087
          39               23,362         29,087
          40               23,362         29,087
          41               23,362         29,087


                             EXHIBIT A-1 - Page 1 of 3



                   SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                             Monthly Base Rent

                           A              B
          Month            
          -----

          42            $  23,362      $  29,087
          43               23,362         29,087
          44               23,362         29,087
          45               23,362         29,087
          46               23,362         29,087
          47               23,362         29,087
          48               23,362         29,087
          49               24,063         29,788
          50               24,063         29,788
          51               24,063         29,788
          52               24,063         29,788
          53               24,063         29,788
          54               24,063         29,788
          55               24,063         29,788
          56               24,063         29,788
          57               24,063         29,788
          58               24,063         29,788
          59               24,063         29,788
          60               24,063         29,788
          61               24,785         30,510
          62               24,785         30,510
          63               24,785         30,510
          64               24,785         30,510
          65               24,785         30,510
          66               24,785         30,510
          67               24,785         30,510
          68               24,785         30,510
          69               24,785         30,510
          70               24,785         30,510
          71               24,785         30,510
          72               24,785         30,510
          73               25,528         31,253
          74               25,528         31,253
          75               25,528         31,253
          76               25,528         31,253
          77               25,528         31,253
          78               25,528         31,253
          79               25,528         31,253
          80               25,528         31,253
          81               25,528         31,253
          82               25,528         31,253


                          EXHIBIT A-1 - Page 2 of 3

                                       
                    SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                               Monthly Base Rent

                           A              B
          Month            
          -----

          83            $  25,528      $  31,253
          84               25,528         31,253
          85               26,294         32,019
          86               26,294         32,019
          87               26,294         32,019
          88               26,294         32,019
          89               26,294         32,019
          90               26,294         32,019
          91               26,294         32,019
          92               26,294         32,019
          93               26,294         32,019
          94               26,294         32,019
          95               26,294         32,019
          96               26,294         32,019
          97               27,083         32,808
          98               27,083         32,808
          99               27,083         32,808
          100              27,083         32,808
          101              27,083         32,808
          102              27,083         32,808
          103              27,083         32,808
          104              27,083         32,808
          105              27,083         32,808
          106              27,083         32,808
          107              27,083         32,808
          108              27,083         32,808
          109              27,895         33,620
          110              27,895         33,620
          111              27,895         33,620
          112              27,895         33,620
          113              27,895         33,620
          114              27,895         33,620
          115              27,895         33,620
          116              27,895         33,620
          117              27,895         33,620
          118              27,895         33,620
          119              27,895         33,620
          120              27,895         33,620
                     ------------   ------------
          TOTAL      $  2,941,140   $  2,941,175


                         EXHIBIT A-1 - Page 3 of 3


Recording Requested by And
When Recorded Mail TO:


- ------------------------

- ------------------------

- ------------------------

Attn:
      ------------------------------

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                (Space above this line for Recorder's Use)

           SUBORDINATION, NON-DISTURBANCE AND ATTORNMENT AGREEMENT

THIS AGREEMENT, made as of the       day of          19   , between Burke
                               -----        --------   ---
Rubber Company, a California corporation ("Tenant"), 
                                                     --------------------
                   , a                               ("Lender"), and the
- -------------------    -----------------------------

Arthur D. Bridges Family Revocable Trust, organized and existing under the
laws of the State of California ("Landlord").

                                 WITNESSETH

          WHEREAS, Tenant has entered into a certain lease with Landlord 
(said lease, together with any extensions, renewals, replacements or 
modifications thereof, referred to hereinafter as the "Lease") dated May 24, 
1991, covering premises (the "Premises") within a certain building known as 
107 South Riverside Drive, Modesto, California and situated on land more 
particularly described in EXHIBIT A attached hereto and incorporated herein; 
and

           WHEREAS, Lender has  agreed to make a loan ( the "Loan") to 
Landlord secured by a certain Deed of Trust, (the "Deed of Trust"); and

           WHEREAS, it is a condition precedent to obtaining the Loan that 
the Deed of Trust be a lien or charge upon the Premises unconditionally prior 
and superior to the Lease and the leasehold interest of Tenant; and


                            EXHIBIT B - Page 1 of 4


           WHEREAS, Tenant acknowledges that when recorded the Deed of Trust 
constitutes, or will constitute,  a lien or charge upon the Premises which 
is, or shall be, unconditionally prior and superior to the Lease and 
leasehold interest of Tenant; and

           WHEREAS, Lender has been requested by Tenant and by Landlord to 
enter into a non-disturbance agreement with Tenant;

           NOW THEREFORE, in consideration of the premises and mutual 
covenants hereinafter contained, the parties hereto mutually covenant and 
agree as follows:

           1. The Lease and all of the right, title and interest of Tenant in 
and to the Premises are and shall be subject and subordinate to the Deed of 
Trust and to all of the terms and conditions contained therein, and to any 
renewals, modifications, replacements, consolidations and extensions thereof.

           2. Lender consents to the Lease and, in the event of foreclosure 
of the Deed of Trust, or in the event Lender comes into possession or 
acquires title to the Premises as a result of the enforcement or foreclosure 
of the Deed of Trust or the note secured thereby, or as a result of any other 
means, Lender agrees to recognize Tenant, and further agrees that Tenant 
shall not be disturbed in its possession of the Premises for any reason other 
than one which would entitle the Landlord to terminate the Lease under its 
terms or would cause, without any further action by such Landlord, the 
termination of the Lease or would entitle such Landlord to dispossess Tenant 
from the Premises.

           3. In addition, it is agreed that any options to extend the term 
of the Lease, purchase options, rights of first refusal and similar rights or 
interests of Tenant under the Lease, although subordinated herein to the Deed 
of Trust, shall be recognized by Lender or such other purchaser upon any such 
foreclosure or deed in lieu of foreclosure, or succession by Lender or such 
other purchaser to the interest of Landlord in the Property, to the same 
extent and on the same terms and conditions set forth above with respect to 
Tenant's leasehold estate.

           4. Tenant agrees with Lender that if the interests of Landlord in 
the Premises shall be transferred to and owned by Lender by reason of 
foreclosure or other proceedings brought by it, or any other manner, or shall 
be conveyed thereafter by Lender or shall be conveyed pursuant to a 
foreclosure sale of the Premises (and for the purposes


                         EXHIBIT B - Page 2 of 4


of this paragraph, the term "Lender" shall be deemed to include any grantee 
of Lender or purchaser at foreclosure sale), Tenant shall be bound to Lender 
under all of the terms, covenants and conditions of the Lease for the balance 
of the term thereof; remaining and any extensions or renewals thereof which 
may be effected in accordance with any option therefor in the Lease, with the 
same force and effect as if Lender were the landlord under the Lease, and 
Tenant does hereby attorn to Lender as its landlord, said attornment to be 
effective and self-operative without the execution of any further instruments 
on the part of any of the parties hereto immediately upon Lender succeeding 
to the interest of the Landlord in the Premises.

           5.  This Agreement shall bind and inure to the benefit of the 
parties hereto and their successors and assigns.  As used herein the terms 
"foreclosure" and "foreclosure sale" shall be deemed to include the 
acquisition of Landlord's estate in the Premises by voluntary deed (or 
assignment) in lieu of foreclosure, and the word "Lender" shall include the 
Lender herein specifically named and any of its successors and assigns, 
including anyone who shall have succeeded to Landlord's interest in the 
Premises by, through or under foreclosure of the Deed of Trust.

           6. This Agreement shall be the whole and only agreement between 
the parties hereto with regard to the subordination of the Lease and 
leasehold interest of Tenant to the lien or charge of the Deed of Trust, and 
shall supersede and cancel any prior agreements as to such, or any; 
subordination, including, but not limited to, those  provisions, if any, 
contained in the Lease, which provide for the subordination of the Lease and 
leasehold interest of Tenant to a deed or deeds of trust, or to a mortgage or 
mortgages to be thereafter executed, and shall not be modified or amended 
except in writing signed by all parties hereto.

           IN WITNESS WHEREOF the parties hereto have executed this Agreement 
as of the day and year first above written.

                      TENANT:  BURKE RUBBER COMPANY,
                               a California corporation,

                               By
                                 ------------------------------------
                               Its
                                 ------------------------------------
                                         [signatures continue]


                         EXHIBIT B - Page 3 of 4


                     LANDLORD: ARTHUR D. BRIDGES FAMILY REVOCABLE TRUST,

                               By
                                 ------------------------------------
                               Its
                                 ------------------------------------


                       LENDER:
                               --------------------------------------
                               a
                                -------------------------------------

                                        By
                                           --------------------------
                                        Its
                                            -------------------------


                          EXHIBIT B - Page 4 of 4


                 SCHEDULE OF FINANCIAL OBLIGATIONS OF LESSOR

     This Schedule is to that certain Lease dated July 1, 1991 between ARTHUR 
D. BRIDGES FAMILY REVOCABLE TRUST (herein called "Lessor") and BURKE RUBBER 
COMPANY, a California corporation (herein called "Lessee"), hereinafter "the 
Lease."

     The purpose of this Schedule is to set forth the financial obligations 
of Lessor under the Lease to make repairs, alterations and improvements to 
the Property. Any financial obligations pertaining to repairs, alterations 
and improvements to the Property not specifically set forth on this Schedule 
shall be the responsibility and obligation of Lessee.

                      FINANCIAL OBLIGATIONS OF LESSOR

     1. OFFICE SPACE.

        a. Replacement of existing carpets with new standard grade or better 
           carpets.

        b. Repainting of the entire area and painting or replacement of all 
           other wall treatments.

        c. Repair or replacement of window treatments where necessary.

        d. Existing electrical and plumbing fixtures to be in good operating 
           condition.

        e. Existing HVAC, electrical and plumbing systems to be in good 
           operating condition.


                            EXHIBIT C - Page 1 of 3


     2. WAREHOUSE SPACE.

        a. Existing HVAC to be in good operating condition and in compliance
           with Code.

        b. Existing electrical to be in good operating condition and in 
           compliance with Code.

        c. Existing plumbing to be in good operating condition and in
           compliance with Code.

        d. All existing doors windows, lights and restrooms to be in proper
           working order.

        e. Installation of lighting to provide 70 Lumens (or foot candle
           equivalent) throughout warehouse area.

        f. Railroad siding area is to be made flush with the existing floor.
           Area must be capable of supporting weight necessary for Lessee's
           operations.

        g. If and when another tenant occupies the Building, Lessor to install
           a separate clarifier which will permit a governmental agent to test
           sewage generated by tenant the Building other than Lessee.

     3. SPRINKLER SYSTEM. Lessor to install fire sprinkler system in order 
that it meets or exceeds the standards necessary for Lessor's specific use of 
the Premises, including the installation of fire sprinklers to the paint 
booth room and acid etch room to be constructed within the Premises. Lessee 
to be responsible for first $75,000.00 of cost (materials and installation); 
thereafter, Lessor to be responsible for the balance.

     4. LANDSCAPING. Prior to Lessee's occupancy, Lessor to prune and assure 
that landscaping on the Property is in good condition.

     5. UNDERGROUND TANKS, REMEDIATION. Removal or abandonment of the three 
underground storage tanks on the Property. Removal of all hazardous materials 
on the Property as required by any local, State or Federal law.


                           EXHIBIT C - Page 2 of 3


     In the event of any inconsistency or conflict between the Lease and this 
Schedule as to the financial obligations of Lessor to make repairs, 
alterations and improvements to the Property, this Schedule shall control.

LESSOR                                  LESSEE
                                        
ARTHUR D. BRIDGES FAMILY REVOCABLE      BURKE RUBBER COMPANY a California
TRUST                                   corporation
                                        
By /s/ ARTHUR D. BRIDGES, TRUSTEE       By  /s/ ROCCO C. GENOVESE
  --------------------------------         --------------------------------
   ARTHUR D. BRIDGES, Trustee               ROCCO C. GENOVESE 
                                            Chairman
                                        
By /s/ BEVERLY BRIDGES, TRUSTEE         By  /s/ REED C. WOLTHAUSEN
  --------------------------------         --------------------------------
   BEVERLY BRIDGES, Trustee                 REED C. WOLTHAUSEN 
                                            Director
                                        
Executed on July 1, 1991                Executed on July 1, 1991
                                        
ADDRESS FOR NOTICES AND RENT:           ADDRESS:
                                        
3223 Crow Canyon Road, Suite 270        2250 South 10th Street
P. O. Box 157                            San Jose, CA  95112
San Ramon, CA 94583





                            EXHIBIT C - Page 3 of 3



                             GUARANTY OF LEASE

     WHEREAS, ARTHUR D. BRIDGES FAMILY REVOCABLE TRUST, hereinafter referred 
to as "Lessor", and BURKE RUBBER COMPANY, a California corporation, 
hereinafter referred to as "Lessee", are about to execute a document entitled 
"Lease" dated July 1, 1991 concerning the premises commonly known as 107 S. 
Riverside Drive, Modesto, California, wherein Lessor will lease a portion of 
the premises to Lessee, and

     WHEREAS, BURKE INDUSTRIES, INC., a California corporation, hereinafter 
referred to as "Guarantor" have a financial interest in Lessee, and

     WHEREAS, Lessor would not execute the Lease if Guarantor did not execute 
and deliver to Lessor this Guarantee of Lease,

     NOW THEREFORE, for and in consideration of the execution of the 
foregoing Lease by Lessor and as a material inducement to Lessor to execute 
said Lease, Guarantor hereby unconditionally and irrevocably guarantee the 
prompt payment by Lessee of all rentals and all other sums payable by Lessee 
under said Lease and the faithful and prompt performance by Lessee of each 
and every one of the terms, conditions and covenants of said Lease to be kept 
and performed by Lessee.

     It is specifically agreed and understood that the terms of the foregoing 
Lease may be altered, affected, modified or changed by agreement between 
Lessor and Lessee, said Lease may be assigned by Lessor or any assignee of 
Lessor without consent or notice to Guarantor and that this Guaranty shall 
thereupon and thereafter guarantee the performance of said Lease as so 
changed, modified, altered or assigned.

     This Guaranty shall not be released, modified or affected by failure or 
delay on the part of Lessor to enforce any of the rights or remedies of the 
Lessor under said Lease, whether pursuant to the terms thereof or at law or 
in equity.

     All notices of default shall be given to Guarantor.

     Guarantor hereby waive notice of acceptance of this Guaranty.

     Guarantor do hereby subrogate all existing or future indebtedness of 
Lessee to Guarantor to the obligations owed to Lessor under the Lease and 
this Guaranty.

     The obligations of Lessee under the Lease to execute and deliver 
estoppel statements and financial statements, as therein provided, shall be 
deemed to also require the Guarantor hereunder to do and provide the same 
relative to Guarantor.


                                     -1-



     The term "Lessor" whenever hereinabove used refers to and means the 
Lessor in the foregoing Lease specifically named and also any assignee of 
said Lessor, whether by outright assignment or by assignment for security and 
also any successor to the interest of said Lessor or of any assignee in such 
Lease or any part thereof, whether by assignment or otherwise. So long as the 
Lessor's interest in or to the leased premises of the rents, issues and 
profits therefrom, or in, to or under said Lease, are subject to any mortgage 
or deed of trust or assignment for security, no acquisition by Guarantor of 
the Lessor's interest in the leased premises or under said Lease shall affect 
the continuing obligation of Guarantor under this Guaranty which shall 
nevertheless continue in full force and effect for the benefit of the 
mortgagee, beneficiary, trustee or assignee under such mortgage, deed of 
trust or assignment, of any purchase at sale by judicial foreclosure or under 
private power of sale, and of the successors and assigns of any such 
mortgagee, beneficiary, trustee, assignee or purchaser.

     The term "Lessee" whenever hereinabove used refers to and means the 
Lessee in the foregoing Lease specifically named and also any assignee or 
sublessee of said Lease and also any successor to the interests of said 
Lessee, assignee or sublessee of such Lease or any part thereof, whether by 
assignment, sublease or otherwise.

     In the event any action be brought by said Lessor against Guarantor 
hereunder to enforce the obligation of Guarantor hereunder, the unsuccessful 
party in such action shall pay to the prevailing party therein a reasonable 
attorney's fee which shall be fixed by the court.

Executed at San Jose, California, on July 1, 1991


                                          "GUARANTOR"

                                          BURKE INDUSTRIES, INC.
                                          a California corporation

Address: 2250 S. 10th Street              By  /s/ ROCCO C. GENOVESE
         San Jose, CA 95112                 ------------------------------ 
                                              ROCCO C. GENOVESE
                                              President

                                          By  /s/ REED C. WOLTHAUSEN
                                            -------------------------------
                                              REED C. WOLTHAUSEN
                                              Vice-President, CFO


                                     -2-



                              [LETTERHEAD]


March 3, 1992

Mr. & Mrs. Art Bridges
ADBRIDGE, Inc.
P.O. Box 157
San Ramon, CA 94583

Dear Art & Bev:

Attached is one copy of the lease addendum as signed by Rocky and me, 
executed as of February 20, 1992. We retained the other copy for our files.

Sincerely,


/s/ Reed


Reed C. Wolthausen
Senior Vice President, CFO

RCW/d
enclosure



                  ADDENDUM TO INDUSTRIAL LEASE (TRIPLE NET)

          This addendum to the Industrial Lease dated July 1, 1991 between 
ARTHUR D. BRIDGES FAMILY REVOCABLE TRUST (herein called "Lessor")  and  BURKE 
RUBBER COMPANY,  a  California  corporation (herein called "Lessee").

          Under paragraph 2.  Premises, Parking and Common Areas.
                              2.1  Premises.   This  paragraph  is amended to 
read Lessor hereby leases to Lessee and Lessee leases from Lessor for the 
term,  at the rental, and upon all of the conditions  set forth  herein,  a  
portion  of  that real  property situated in the County of Stanislaus, State 
of California, commonly known  as 107  S.  Riverside  Drive,  Modesto,  more  
particularly described  on  Exhibit A,  and  Exhibit  A-1,  and  described  
as approximately 112,986 square feet (including approximately 10,390 square 
feet of office area) of the building occupying the Property (the "Building") 
as outlined on Exhibit A, and Exhibit A-1, herein referred to "Premises", 
including rights to the common areas as hereinafter specified.

          Under paragraph 4.  RENT.
                              4.2 Base Bent.
                          add 4.2 (a)  The adjusted Base Rent is amended to
read under the Schedule of Monthly Base Rental Payments, Exhibit A-1 Page 1 
of 3, Page 2 of 3 and Page 3 or 3, under column "C".

                              4.3 (a) This paragraph is amended to read
"Lessee's Share" is defined, for purposes of this Lease, as sixty three
point eight (63.8%) percent.

          Under paragraph 39.2 RENT.
                               (a) This paragraph is amended to read The
monthly rent for the first year of the extended term shall be determined as
follows:  The Consumer Price Index ("CPI") figure shall be established the
month of March, 1991, and the month of March, 2001.  The base rent for the 
first month of the extended term shall be equal to the greater of (i) the
preceding month's rent or (ii) the base rent increased by the same percentage,
if any, by which the March 2001, CPI figure shall have increased over the
March,, 1991, CPI figure. As used herein, the term "Consumer Price Index" 
shall refer to the "Consumer Price Index For All Urban Consumers
San Francisco-Oakland Metropolitan Area (All Items)" compiled by the U.S.
Department of Labor, Bureau of Labor Statistics (1982-84 equals 100).  If the 
CPI should hereafter be changed, then the new base shall be converted to the 
1982-84 base and the base as so converted shall be used. In the event that the
bureau shall cease to publish the Consumer Price Index, then the successor or 
most nearly comparable index thereto shall be used. The monthly rent for years
two through five of the extended term shall be determined by a three (3) 
percent  increase  from  the immediately preceding year's monthly rent. 
          All other terms and conditions as written in the


                                  PAGE 1 OF 2



Industrial Lease (Triple Net) remain as written without change.

             LESSOR                           LESSEE

ARTHUR D. BRIDGES FAMILY              BURKE RUBBER COMPANY
REVOCABLE TRUST                       a California corporation


By /s/ ARTHUR D. BRIDGES              By  /s/ ROCCO C. GENOVESE
  -----------------------------         --------------------------------
   ARTHUR D. BRIDGES, Trustee             ROCCO C. GENOVESE, Chairman


By /s/ BEVERLY BRIDGES                By /s/ REED WOLTHAUSEN
  -----------------------------         --------------------------------
   BEVERLY BRIDGES, Trustee              REED C. WOLTHAUSEN, Director

Executed on Dec 18, 1991              Executed on Feb 20, 1992


                                  PAGE 2 OF 2



                                    (SITE PLAN)

                                     EXHIBIT A



                                    (FLOOR PLAN)

                                    EXHIBIT A-1



                    SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                               Monthly Base Rent

                           A               B             C
        Month
        -----

11/92     1            $   21,381     $    7,106      $  22,597
          2                21,381          7,106         22,597
          3                21,381          7,106         22,597
          4                21,381          7,106         22,597
          5                21,381          7,106         22,597
          6                21,381          7,106         22,597
          7                21,381          7,106         22,597
          8                21,381          7,106         22,597
          9                21,381          7,106         22,597
         10                21,381          7,106         22,597
         11                21,381          7,106         22,597
         12                21,381          7,106         22,597
11/92    13                22,022          7,747         23,275
         14                22,022          7,747         23,275
         15                22,022          7,747         23,275
         16                22,022          7,747         23,275
         17                22,022          7,747         23,275
         18                22,022          7,747         23,275
         19                22,022          7,747         23,275
         20                22,022          7,747         23,275
         21                22,022          7,747         23,275
         22                22,022          7,747         23,275
         23                22,022          7,747         23,275
         24                22,022          7,747         23,275
11/93    25                22,682          8,407         23,972
         26                22,682          8,407         23,972
         27                22,682          8,407         23,972
         28                22,682          8,407         23,972
         29                22,682          8,407         23,972
         30                22,682          8,407         23,972
         31                22,682          8,407         23,972
         32                22,682          8,407         23,972
         33                22,682          8,407         23,972
         34                22,682          8,407         23,972
         35                22,682         21,442         23,972
         36                22,682         28,407         23,972
11/94    37                23,362         29,087         24,691
         38                23,362         29,087         24,691
         39                23,362         29,087         24,691
         40                23,362         29,087         24,691
         41                23,362         29,087         24,691
     
                          EXHIBIT A-1 - Page 1 of 3



                    SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                                Monthly Base Rent
  
                           A              B              C
        Month
        -----

         42            $   23,362     $   29,087      $  24,691
         43                23,362         29,087         24,691
         44                23,362         29,087         24,691
         45                23,362         29,087         24,691
         46                23,362         29,087         24,691
         47                23,362         29,087         24,691
         48                23,362         29,087         24,691
11/95    49                24,063         29,788         25,432
         50                24,063         29,788         25,432
         51                24,063         29,788         25,432
         52                24,063         29,788         25,432
         53                24,063         29,788         25,432
         54                24,063         29,788         25,432
May/96   55                24,063         29,788         25,432
         56                24,063         29,788         25,432
         57                24,063         29,788         25,432
         58                24,063         29,788         25,432
         59                24,063         29,788         25,432
         60                24,063         29,788         25,432
         61                24,785         30,510         26,195
         62                24,785         30,510         26,195
         63                24,785         30,510         26,195
         64                24,785         30,510         26,195
         65                24,785         30,510         26,195
         66                24,785         30,510         26,195
May/97   67                24,785         30,510         26,195
         68                24,785         30,510         26,195
         69                24,785         30,510         26,195
         70                24,785         30,510         26,195
         71                24,785         30,510         26,195
         72                24,785         30,510         26,195
         73                25,528         31,253         26,980
         74                25,528         31,253         26,980
         75                25,528         31,253         26,980
         76                25,528         31,253         26,980
         77                25,528         31,253         26,980
         78                25,528         31,253         26,980
         79                25,528         31,253         26,980
         80                25,528         31,253         26,980
         81                25,528         31,253         26,980
         82                25,528         31,253         26,980
     
     
                            EXHIBIT A-1 - Page 2 of 3



                    SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                                Monthly Base Rent

                           A              B              C
       Month
       -----

         83            $   25,528     $   31,253      $  26,980
         84                25,528         31,253         26,980
         85                26,294         32,019         27,789
         86                26,294         32,019         27,789
         87                26,294         32,019         27,789
         88                26,294         32,019         27,789
         89                26,294         32,019         27,789
         90                26,294         32,019         27,789
         91                26,294         32,019         27,789
         92                26,294         32,019         27,789
         93                26,294         32,019         27,789
         94                26,294         32,019         27,789
         95                26,294         32,019         27,789
         96                26,294         32,019         27,789
         97                27,083         32,808         28,623
         98                27,083         32,808         28,623
         99                27,083         32,808         28,623
        100                27,083         32,808         28,623
        101                27,083         32,808         28,623
        102                27,083         32,808         28,623
        103                27,083         32,808         28,623
        104                27,083         32,808         28,623
        105                27,083         32,808         28,623
        106                27,083         32,808         28,623
        107                27,083         32,808         28,623
        108                27,083         32,808         28,623
        109                27,895         33,620         29,481
        110                27,895         33,620         29,481
        111                27,895         33,620         29,481
        112                27,895         33,620         29,481
        113                27,895         33,620         29,481
        114                27,895         33,620         29,481
        115                27,895         33,620         29,481
        116                27,895         33,620         29,481
        117                27,895         33,620         29,481
        118                27,895         33,620         29,481
        119                27,895         33,620         29,481
10/01   120                27,895         33,620         29,481
                       ----------     ----------
        TOTAL          $2,941,140     $2,941,175


                          EXHIBIT A-1 - Page 3 of 3



                               EXHIBIT "A-1"

                   SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                                [Attached]



                   SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                              Monthly Base Rent   


                      A               B
   Month
   -----
     1             $  21,381       $  7,106
     2                21,381          7,106
     3                21,381          7,106
     4                21,381          7,106
     5                21,381          7,106
     6                21,381          7,106
     7                21,381          7,106
     8                21,381          7,106
     9                21,381          7,106
    10                21,381          7,106
    11                21,381          7,106
    12                21,381          7,106
    13                22,022          7,747
    14                22,022          7,747
    15                22,022          7,747
    16                22,022          7,747
    17                22,022          7,747
    18                22,022          7,747
    19                22,022          7,747
    20                22,022          7,747
    21                22,022          7,747
    22                22,022          7,747
    23                22,022          7,747
    24                22,022          7,747
    25                22,682          8,407
    26                22,682          8,407
    27                22,682          8,407
    28                22,682          8,407
    29                22,682          8,407
    30                22,682          8,407
    31                22,682          8,407
    32                22,682          8,407
    33                22,682          8,407
    34                22,682          8,407
    35                22,682         21,442
    36                22,682         28,407
    37                23,362         29,087
    38                23,362         29,087
    39                23,362         29,087
    40                23,362         29,087
    41                23,362         29,087
 
                           EXHIBIT A-1 - Page 1 of 3



                   SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                               Monthly Base Rent

                      A              B
  Month
  -----

    42             $  23,362      $  29,087
    43                23,362         29,087
    44                23,362         29,087
    45                23,362         29,087
    46                23,362         29,087
    47                23,362         29,087
    48                23,362         29,087
    49                24,063         29,788
    50                24,063         29,788
    51                24,063         29,788
    52                24,063         29,788
    53                24,063         29,788
    54                24,063         29,788
    55                24,063         29,788
    56                24,063         29,788
    57                24,063         29,788
    58                24,063         29,788
    59                24,063         29,788
    60                24,063         29,788
    61                24,785         30,510
    62                24,785         30,510
    63                24,785         30,510
    64                24,785         30,510
    65                24,785         30,510
    66                24,785         30,510
    67                24,785         30,510
    68                24,785         30,510
    69                24,785         30,510
    70                24,785         30,510
    71                24,785         30,510
    72                24,785         30,510
    73                25,528         31,253
    74                25,528         31,253
    75                25,528         31,253
    76                25,528         31,253
    77                25,528         31,253
    78                25,528         31,253
    79                25,528         31,253
    80                25,528         31,253
    81                25,528         31,253
    82                25,528         31,253

                             EXHIBIT A-1 - Page 2 of 3



                     SCHEDULE OF MONTHLY BASE RENTAL PAYMENTS

                                 Monthly Base Rent

                       A              B
   Month
   -----

    83           $     25,528      $  31,253
    84                 25,528         31,253
    85                 26,294         32,019
    86                 26,294         32,019
    87                 26,294         32,019
    88                 26,294         32,019
    89                 26,294         32,019
    90                 26,294         32,019
    91                 26,294         32,019
    92                 26,294         32,019
    93                 26,294         32,019
    94                 26,294         32,019
    95                 26,294         32,019
    96                 26,294         32,019
    97                 27,083         32,808
    98                 27,083         32,808
    99                 27,083         32,808
   100                 27,083         32,808
   101                 27,083         32,808
   102                 27,083         32,808
   103                 27,083         32,808
   104                 27,083         32,808
   105                 27,083         32,808
   106                 27,083         32,808
   107                 27,083         32,808
   108                 27,083         32,808
   109                 27,895         33,620
   110                 27,895         33,620
   111                 27,895         33,620
   112                 27,895         33,620
   113                 27,895         33,620
   114                 27,895         33,620
   115                 27,895         33,620
   116                 27,895         33,620
   117                 27,895         33,620
   118                 27,895         33,620
   119                 27,895         33,620
   120                 27,895         33,620
                 ------------   ------------

  TOTAL          $  2,941,140   $  2,941,175


                           EXHIBIT A-1 - Page 3 of 3



                              EXHIBIT "B"

           ADDITIONAL RENT FOR EXISTING TENANT IMPROVEMENTS

                              [Attached]




EXHIBIT B
ADDITIONAL RENT FOR EXISTING TENANT IMPROVEMENTS


                                                      13.04%
                                       PMT         INT               BAL
                               -----------------------------------------
     After 5/96 payment (pmt # 53 of 120)                     407,634.69
 6/01/96                          8,600.29       4,429.63     403,464.03
 7/01/96                          8,600.29       4,384.31     399,248.05
 8/01/96                          8,600.29       4,338.50     394,986.26
 9/01/96                          8,600.29       4,292.18     390,678.15
10/01/96                          8,600.29       4,245.37     386,323.23
11/01/96                          8,600.29       4,198.05     381,920.99
12/01/96                          8,600.29       4,150.21     377,470.91
 1/01/97                          8,600.29       4,101.85     372,972.47
 2/01/97                          8,600.29       4,052.97     368,425.15
 3/01/97                          8,600.29       4,003.55     363,828.41
 4/01/97                          8,600.29       3,953.60     359,181.72
 5/01/97                          8,600.29       3,903.11     354,484.54
 6/01/97                          8,600.29       3,852.07     349,736.32
 7/01/97                          8,600.29       3,800.47     344,936.50
 8/01/97                          8,600.29       3,748.31     340,084.52
 9/01/97                          8,600.29       3,695.59     335,179.82
10/01/97                          8,600.29       3,642.29     330,221.82
11/01/97                          8,600.29       3,588.41     325,209.94
12/01/97                          8,600.29       3,533.95     320,143.60
 1/01/98                          8,600.29       3,478.89     315,022.20
 2/01/98                          8,600.29       3,423.24     309,845.15
 3/01/98                          8,600.29       3,366.98     304,611.84
 4/01/98                          8,600.29       3,310.12     299,321.67
 5/01/98                          8,600.29       3,252.63     293,974.01
 6/01/98                          8,600.29       3,194.52     288,568.24
 7/01/98                          8,600.29       3,135.77     283,103.72
 8/01/98                          8,600.29       3,076.39     277,579.82
 9/01/98                          8,600.29       3,016.37     271,995.90
10/01/98                          8,600.29       2,955.69     266,351.30
11/01/98                          8,600.29       2,894.35     260,645.36
12/01/98                          8,600.29       2,832.35     254,877.42
 1/01/99                          8,600.29       2,769.67     249,046.80
 2/01/99                          8,600.29       2,706.31     243,152.82
 3/01/99                          8,600.29       2,642.26     237,194.79
 4/01/99                          8,600.29       2,577.52     231,172.02
 5/01/99                          8,600.29       2,512.07     225,083.80
 6/01/99                          8,600.29       2,445.91     218,929.42
 7/01/99                          8,600.29       2,379.03     212,708.16
 8/01/99                          8,600.29       2,311.43     206,419.30
 9/01/99                          8,600.29       2,243.09     200,062.10
10/01/99                          8,600.29       2,174.01     193,635.82
11/01/99                          8,600.29       2,104.18     187,139.71
12/01/99                          8,600.29       2,033.58     180,573.00



EXHIBIT B
ADDITIONAL RENT FOR EXISTING TENANT IMPROVEMENTS


                                                      13.04%
                                       PMT         INT               BAL
                               -------------------------------------------
 1/01/00                          8,600.29       1,962.23     173,934.94
 2/01/00                          8,600.29       1,890.09     167,224.74
 3/01/00                          8,600.29       1,817.18     160,441.63
 4/01/00                          8,600.29       1,743.47     153,584.81
 5/01/00                          8,600.29       1,668.95     146,653.47
 6/01/00                          8,600.29       1,593.63     139,646.81
 7/01/00                          8,600.29       1,517.50     132,564.02
 8/01/00                          8,600.29       1,440.53     125,404.26
 9/01/00                          8,600.29       1,362.73     118,166.70
10/01/00                          8,600.29       1,284.08     110,850.49
11/01/00                          8,600.29       1,204.58     103,454.78
12/01/00                          8,600.29       1,124.21      95,978.70
 1/01/01                          8,600.29       1,042.97      88,421.38
 2/01/01                          8,600.29         960.85      80,781.94
 3/01/01                          8,600.29         877.83      73,059.48
 4/01/01                          8,600.29         793.91      65,253.10
 5/01/01                          8,600.29         709.08      57,361.89
 6/01/01                          8,600.29         623.33      49,384.93
 7/01/01                          8,600.29         536.65      41,321.29
 8/01/01                          8,600.29         449.02      33,170.02
 9/01/01                          8,600.29         360.45      24,930.18
10/01/01                          8,600.29         270.91      16,600.80
11/01/01                          8,600.29         180.40       8,180.91
12/01/01                          8,269.81          88.90           0.00



                                EXHIBIT "C"

                            TENANT IMPROVEMENTS

Office improvements

Process piping (and insulation)

Sprinkler system

Press bases and pits

Draft curtains

Smoke vents

Electrical system (upgrade)

Building ventilation

Concrete slab for liquid nitrogen tank

Walls for boiler/hydraulics room

Cold box refrigeration system (upgrade)