BURKE INDUSTRIES, INC.
                               2250 South Tenth Street
                                  San Jose, CA 95112

                                     $30,000,000

                     FLOATING INTEREST RATE SENIOR NOTES DUE 2007

                            REGISTRATION RIGHTS AGREEMENT

                                                              New York, New York
                                                                  April 21, 1998

NationsBanc Montgomery Securities LLC
NationsBank Corporate Center
100 North Tryon Street, NC1-007-07-01
Charlotte, North Carolina  28255-0001

Ladies and Gentlemen:

          Burke Industries, Inc., a California corporation (the "Company"),
proposes to issue and sell (the "Initial Placement") to the Initial Purchaser,
upon the terms set forth in a purchase agreement of even date herewith (the
"Purchase Agreement"), its Floating Interest Rate Senior Notes due 2007 (the
"Notes").  As an inducement to the Initial Purchaser to enter into the Purchase
Agreement and purchase the Notes and in satisfaction of a condition to your
obligations under the Purchase Agreement, the Company and the Subsidiary
Guarantors (as defined below) agree with you for the benefit of the holders from
time to time of the Notes (including the Initial Purchaser) (each of the
foregoing a "Holder" and together the "Holders"), as follows:

          1.     DEFINITIONS.  Capitalized terms used herein without definition
shall have their respective meanings set forth in the Purchase Agreement.  As
used in this Agreement, the following capitalized defined terms shall have the
following meanings:

          "AFFILIATE" of any specified person means any other person that,
     directly or indirectly, is in control of, is controlled by, or is under
     common control with, such specified person.  For purposes of this
     definition, control of a person means the power, direct or indirect, to
     direct or cause the direction of the management and policies of such person
     whether by contract or otherwise; and the terms "controlling" and
     "controlled" have meanings correlative to the foregoing.

          "CLOSING DATE" has the meaning set forth in the Purchase Agreement.

          "COMMISSION" means the Securities and Exchange Commission.

          "COMPANY" has the meaning set forth in the preamble hereto.


                                     2


          "EFFECTIVENESS TARGET DATE" has the meaning set forth in Section 5(b)
     hereto.

          "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended,
     and the rules and regulations of the Commission promulgated thereunder.

          "EXCHANGE NOTES" means debt securities issued by the Company and
     guaranteed by the Subsidiary Guarantors, identical in all material respects
     to the Notes (except that (i) interest thereon shall accrue from the last
     date on which interest was paid on the Notes or, if no such interest has
     been paid, from April 21, 1998 and (ii) the interest rate step-up
     provisions and the transfer restrictions pertaining to the Notes will be
     modified or eliminated, as appropriate, in the Exchange Notes), to be
     issued under the Indenture.

          "EXCHANGE OFFER" means the proposed offer to the Holders to issue and
     deliver to such Holders, in exchange for the Notes, a like principal amount
     of Exchange Notes.

          "EXCHANGE OFFER REGISTRATION PERIOD" means the longer of (A) the
     period until the consummation of the Exchange Offer and (B) two years after
     effectiveness of the Exchange Offer Registration Statement, exclusive of
     any period during which any stop order shall be in effect suspending the
     effectiveness of the Exchange Offer Registration Statement; PROVIDED,
     HOWEVER, that in the event that all resales of Exchange Notes (including,
     subject to the time periods set forth herein, any resales by Exchanging
     Dealers) covered by such Exchange Offer Registration Statement have been
     made, the Exchange Offer Registration Statement need not remain
     continuously effective for the period set forth in clause (B) above.

          "EXCHANGE OFFER REGISTRATION STATEMENT" means a registration statement
     of the Company on an appropriate form under the Securities Act with respect
     to the Exchange Offer, all amendments and supplements to such registration
     statement, including post-effective amendments, in each case including the
     Prospectus contained therein, all exhibits thereto and all material
     incorporated by reference therein.

          "EXCHANGING DEALER" means any Holder (which may include the Initial
     Purchaser) that is a broker-dealer, electing to exchange Notes acquired for
     its own account as a result of market-making activities or other trading
     activities for Exchange Notes.

          "FINAL MEMORANDUM" has the meaning set forth in the Purchase
     Agreement.

          "GUARANTEES" has the meaning set forth in the Purchase Agreement.


                                     3


          "SUBSIDIARY GUARANTORS" has the meaning set forth in the preamble
     hereto.

          "HOLDER" has the meaning set forth in the preamble hereto.

          "INDENTURE" means the indenture relating to the Notes and the Exchange
     Notes, to be dated as of the Closing Date, among the Company, Burke
     Flooring Products, Inc., Burke Custom Processing, Inc., Burke Rubber
     Company, Inc. and Mercer Products Company, Inc. as Subsidiary Guarantors,
     and United States Trust Company of New York, as trustee, as the same may be
     amended, supplemented, waived or otherwise modified from time to time in
     accordance with the terms thereof.

          "INITIAL PLACEMENT" has the meaning set forth in the preamble hereto.

          "INITIAL PURCHASER" has the meaning set forth in the Purchase
     Agreement.

          "LIQUIDATED DAMAGES" has the meaning set forth in Section 5(b) hereto.

          "LOSSES" has the meaning set forth in Section 6(d) hereto.

          "MAJORITY HOLDERS" means the Holders of a majority of the aggregate
     principal amount of Notes registered under a Registration Statement.

          "MANAGING UNDERWRITERS" means the investment banker or investment
     bankers and manager or managers that shall administer an underwritten
     offering under a Shelf Registration Statement.

          "NOTES" has the meaning set forth in the preamble hereto.

          "PROSPECTUS" means the prospectus included in any Registration
     Statement (including, without limitation, a prospectus that discloses
     information previously omitted from a prospectus filed as part of an
     effective registration statement in reliance upon Rule 430A under the
     Securities Act), as amended or supplemented by any prospectus supplement,
     with respect to the terms of the offering of any portion of the Notes or
     the Exchange Notes covered by such Registration Statement, and all
     amendments and supplements to the Prospectus, including post-effective
     amendments.

          "PURCHASE AGREEMENT" has the meaning set forth in the preamble hereto.

          "REGISTRATION DEFAULT" has the meaning set forth in Section 5(b)
     hereto.


                                     4


          "REGISTRATION STATEMENT" means any Exchange Offer Registration
     Statement or Shelf Registration Statement that covers any of the Notes or
     the Exchange Notes (including the Guarantees thereon) pursuant to the
     provisions of this Agreement, amendments and supplements to such
     registration statement, including post-effective amendments, in each case
     including the Prospectus contained therein, all exhibits thereto, and all
     material incorporated by reference therein.

          "SECURITIES ACT" means the Securities Act of 1933, as amended, and the
     rules and regulations of the Commission promulgated thereunder.

          "SHELF REGISTRATION" means a registration effected pursuant to Section
     3 hereof.

          "SHELF REGISTRATION PERIOD" has the meaning set forth in Section 3(b)
     hereof.

          "SHELF REGISTRATION STATEMENT" means a "shelf" registration statement
     of the Company pursuant to the provisions of Section 3 hereof, which covers
     some or all of the Notes or Exchange Notes, as applicable (including the
     Guarantees thereon), on an appropriate form under Rule 415 under the
     Securities Act, or any similar rule that may be adopted by the Commission,
     amendments and supplements to such registration statement, including
     post-effective amendments, in each case including the Prospectus contained
     therein, all exhibits thereto and all material incorporated by reference
     therein.

          "SUBSIDIARY GUARANTORS" has the meaning set forth in the Indenture.

          "TRUSTEE" means the trustee with respect to the Notes or Exchange
     Notes, as applicable, under the Indenture.

          "UNDERWRITER" means any underwriter of Notes in connection with an
     offering thereof under a Shelf Registration Statement.

          2.     EXCHANGE OFFER; RESALES OF EXCHANGE NOTES BY EXCHANGING
DEALERS; PRIVATE EXCHANGE.

          (a)    The Company and the Subsidiary Guarantors shall prepare and,
on or prior to the 60th calendar day following the Closing Date, shall file with
the Commission the Exchange Offer Registration Statement with respect to the
Exchange Offer.  The Company and the Subsidiary Guarantors shall use their best
efforts (i) to cause the Exchange Offer Registration Statement to be declared
effective under the Securities Act on or prior to the 120th calendar day
following the Closing Date and remain effective until the closing of the


                                     5


Exchange Offer and (ii) to consummate the Exchange Offer on or prior to the
150th calendar day following the Closing Date.

          (b)    Upon the effectiveness of the Exchange Offer Registration
Statement, the Company and the Subsidiary Guarantors shall promptly commence the
Exchange Offer, it being the objective of such Exchange Offer to enable each
Holder electing to exchange Notes for Exchange Notes (assuming that such Holder
(x) is not an "affiliate" of the Company within the meaning of the Securities
Act, (y) is not a broker-dealer that acquired the Notes in a transaction other
than as a part of its market-making or other trading activities and (z) if such
Holder is not a broker-dealer, acquires the Exchange Notes in the ordinary
course of such Holder's business, is not participating in the distribution of
the Exchange Notes and has no arrangements or understandings with any person to
participate in the distribution of the Exchange Notes) to resell such Exchange
Notes from and after their receipt without any limitations or restrictions under
the Securities Act and without material restrictions under the securities laws
of a substantial proportion of the several states of the United States.

          (c)    In connection with the Exchange Offer, the Company shall mail
to each Holder a copy of the Prospectus forming part of the Exchange Offer
Registration Statement, together with an appropriate letter of transmittal and
related documents, stating, in addition to such other disclosures as are
required by applicable law:

          (i)    that the Exchange Offer is being made pursuant to this
     Agreement and that all Notes validly tendered will be accepted for
     exchange;

          (ii)   the dates of acceptance for exchange;

          (iii)  that any Note not tendered will remain outstanding and
     continue to accrue interest, but will not retain any rights under this
     Agreement;

          (iv)   that Holders electing to have a Note exchanged pursuant to the
     Exchange Offer will be required to surrender such Note, together with the
     enclosed letters of transmittal, to the institution and at the address
     (located in the Borough of Manhattan, The City of New York) specified in
     the notice prior to the close of business on the last day of acceptance for
     exchange; and

          (v)    that Holders will be entitled to withdraw their election, not
     later than the close of business on the last day of acceptance for
     exchange, by sending to the institution and at the address (located in the
     Borough of Manhattan, The City of New York) specified in the notice a
     telegram, telex, facsimile transmission or letter setting forth the name of
     such Holder, the principal amount of Notes delivered for exchange and a
     statement that such Holder is withdrawing his election to have such Notes
     exchanged; and shall keep the Exchange Offer open for acceptance for not
     less than 30


                                     6


     days and not more than 45 days (or longer if required by applicable law)
     after the date notice thereof is mailed to the Holders; utilize the
     services of a depositary for the Exchange Offer with an address in the
     Borough of Manhattan, The City of New York; and comply in all respects with
     all applicable laws relating to the Exchange Offer.

          (d)    As soon as practicable after the close of the Exchange Offer,
the Company shall:

          (i)    accept for exchange all Notes duly tendered and not validly
     withdrawn pursuant to the Exchange Offer;

          (ii)   deliver to the Trustee for cancellation all Notes so accepted
     for exchange; and

          (iii)  cause the Trustee promptly to authenticate and deliver to each
     Holder the Exchange Notes equal in principal amount to the Notes of such
     Holder so accepted for exchange.

          (e)    The Initial Purchaser, the Company and the Subsidiary
Guarantors acknowledge that, pursuant to interpretations by the staff of the
Commission of Section 5 of the Securities Act, and in the absence of an
applicable exemption therefrom, each Exchanging Dealer is required to deliver a
Prospectus in connection with a sale of any Exchange Notes received by such
Exchanging Dealer pursuant to the Exchange Offer in exchange for Notes acquired
for its own account as a result of market-making activities or other trading
activities.  Accordingly, the Company and the Subsidiary Guarantors shall:

          (i)    include the information set forth in Annex A hereto on the
     cover of the Exchange Offer Registration Statement, in Annex B hereto in
     the forepart of the Exchange Offer Registration Statement in a section
     setting forth details of the Exchange Offer, in Annex C hereto in the
     underwriting or plan of distribution section of the Prospectus forming a
     part of the Exchange Offer Registration Statement, and in Annex D hereto in
     the letter of transmittal delivered pursuant to the Exchange Offer; and

          (ii)   use its best efforts to keep the Exchange Offer Registration
     Statement continuously effective under the Securities Act during the
     Exchange Offer Registration Period for delivery of the prospectus included
     therein by Exchanging Dealers in connection with sales of Exchange Notes
     received pursuant to the Exchange Offer, as contemplated by Section 4(h)
     below; PROVIDED, HOWEVER, that the Company shall not be required to
     maintain the effectiveness of the Exchange Offer Registration Statement for
     more than 60 days following the consummation of the Exchange Offer unless
     the Company has been notified in writing on or prior to the 60th day 
     following the


                                     7


     consummation of the Exchange Offer by one or more Exchanging Dealers 
     that such Holder has received Exchange Notes as to which it will be 
     required to deliver a prospectus upon resale.

          (f)    In the event that the Initial Purchaser determines that it is
not eligible to participate in the Exchange Offer with respect to the exchange
of Notes constituting any portion of an unsold allotment, upon the effectiveness
of the Shelf Registration Statement as contemplated by Section 3 hereof and at
the request of the Initial Purchaser, the Company shall issue and deliver to the
Initial Purchaser, or to the party purchasing Exchange Notes registered under
the Shelf Registration Statement from the Initial Purchaser, in exchange for
such Notes, a like principal amount of Exchange Notes.  The Company shall use
its best efforts to cause the CUSIP Service Bureau to issue the same CUSIP
number for such Exchange Notes as for Exchange Notes issued pursuant to the
Exchange Offer.

          (g)    The Company and the Subsidiary Guarantors shall use their best
efforts to complete the Exchange Offer as provided above and shall comply with
the applicable requirements of the Securities Act, the Exchange Act and other
applicable laws and regulations in connection with the Exchange Offer.  The
Exchange Offer shall not be subject to any conditions, other than that the
Exchange Offer does not violate applicable law or any applicable interpretation
of the staff of the Commission.  The Company shall inform the Initial Purchaser
of the names and addresses of the Holders to whom the Exchange Offer is made,
and the Initial Purchaser shall have the right, subject to applicable law, to
contact such Holders and otherwise facilitate the tender of Notes in the
Exchange Offer.

          3.     SHELF REGISTRATION.  If (i) because of any change in law or
applicable interpretations thereof by the Commission's staff, the Company
determines upon advice of its outside counsel that it is not permitted to effect
the Exchange Offer as contemplated by Section 2 hereof or (ii) for any reason
other than those specified in clause (i) above, the Exchange Offer is not
consummated within 150 days of the Closing Date unless the Exchange Offer has
commenced, in which case, the Exchange Offer is not consummated within 30 days
after the date on which the Exchange Offer was commenced or (iii) the Initial
Purchaser so requests with respect to Notes held by it following consummation of
the Exchange Offer, or (iv) any Holder (other than the Initial Purchaser) is not
eligible to participate in the Exchange Offer or has participated in the
Exchange Offer and has received Exchange Notes that are not freely tradeable or
(v) in the case where the Initial Purchaser participates in the Exchange Offer
or acquires Exchange Notes pursuant to Section 2(f) hereof, the Initial
Purchaser does not receive freely tradeable Exchange Notes in exchange for Notes
constituting any portion of an unsold allotment (it being understood that, for
purposes of this Section 3, (x) the requirement that the Initial Purchaser
deliver a Prospectus containing the information required by Items 507 and/or 508
of Regulation S-K under the Securities Act in connection with sales of Exchange
Notes acquired in exchange for such Notes shall result in such Exchange Notes
being not "freely tradeable" and (y) the requirement that an Exchanging Dealer
deliver a Prospectus in


                                     8


connection with sales of Exchange Notes acquired in the Exchange Offer in
exchange for Notes acquired as a result of market-making activities or other
trading activities shall not result in such Exchange Notes being not "freely
tradeable"), the following provisions shall apply:

          (a)    The Company and the Subsidiary Guarantors shall, as promptly
     as practicable (but in any event on or prior to 60 days after such filing
     obligation arises), file with the Commission a Shelf Registration Statement
     relating to the offer and sale of the Notes or the Exchange Notes, as
     applicable, by the Holders from time to time in accordance with the methods
     of distribution elected by such Holders and set forth in such Shelf
     Registration Statement and Rule 415 under the Securities Act, PROVIDED
     that, with respect to Exchange Notes received by the Initial Purchaser in
     exchange for Notes constituting any portion of an unsold allotment, the
     Company and the Subsidiary Guarantors may, if permitted by current
     interpretations by the Commission's staff, file a post-effective amendment
     to the Exchange Offer Registration Statement containing the information
     required by Regulation S-K Items 507 and/or 508, as applicable, in
     satisfaction of its obligations under this paragraph (a) with respect
     thereto, and any such Exchange Offer Registration Statement, as so amended,
     shall be referred to herein as, and governed by the provisions herein
     applicable to, a Shelf Registration Statement.

          (b)    The Company and the Subsidiary Guarantors shall use their best
     efforts to cause the Shelf Registration Statement to be declared effective
     under the Securities Act as promptly as possible after filing such Shelf
     Registration Statement (but in any event within 45 Business Days after such
     filing occurs) pursuant to this Section 3 and to keep such Shelf
     Registration Statement continuously effective in order to permit the
     Prospectus contained therein to be usable by Holders for a period of two
     years from the date the Shelf Registration Statement is declared effective
     by the Commission or such shorter period that will terminate when all the
     Notes or Exchange Notes, as applicable, covered by the Shelf Registration
     Statement have been sold pursuant to the Shelf Registration Statement (in
     any such case, such period being called the "Shelf Registration Period").
     The Company shall be deemed not to have used its best efforts to keep the
     Shelf Registration Statement effective during the requisite period if it
     voluntarily takes any action that would result in Holders of Notes covered
     thereby not being able to offer and sell such Notes during that period,
     unless (i) such action is required by applicable law or (ii) such action is
     taken by the Company in good faith and for valid business reasons (not
     including avoidance of the Company's obligations hereunder), including the
     acquisition or divestiture of assets, so long as the Company promptly
     thereafter complies with the requirements of Section 4(k) hereof, if
     applicable.

          4.     REGISTRATION PROCEDURES.  In connection with any Shelf
Registration Statement and, to the extent applicable, any Exchange Offer
Registration Statement, the following provisions shall apply:


                                     9


          (a)    The Company and the Subsidiary Guarantors shall, within a
     reasonable time prior to the filing of any Registration Statement, any
     Prospectus, any amendment to a Registration Statement or amendment or
     supplement to a Prospectus or any document which is to be incorporated by
     reference into a Registration Statement or a Prospectus after initial
     filing of a Registration Statement, provide copies of such document to the
     Initial Purchaser and its counsel (and, in the case of a Shelf Registration
     Statement, the Holders and their counsel) and make such representatives of
     the Company and the Subsidiary Guarantors as shall be reasonably requested
     by the Initial Purchaser or its counsel (and, in the case of a Shelf
     Registration Statement, the Holders or their counsel) available for
     discussion of such document, and shall not at any time file or make any
     amendment to the Registration Statement, any Prospectus or any amendment of
     or supplement to a Registration Statement or a Prospectus or any document
     which is to be incorporated by reference into a Registration Statement or a
     Prospectus, of which the Initial Purchaser and its counsel (and, in the
     case of a Shelf Registration Statement, the Holders and their counsel)
     shall not have previously been advised and furnished a copy or to which the
     Initial Purchaser or its counsel (and, in the case of a Shelf Registration
     Statement, the Holders or their counsel) shall object, except for any
     amendment or supplement or document (a copy of which has been previously
     furnished to the Initial Purchaser and its counsel (and, in the case of a
     Shelf Registration Statement, the Holders and their counsel)) which counsel
     to the Company and the Subsidiary Guarantors shall advise the Company and
     the Subsidiary Guarantors, in the form of a written legal opinion, is
     required in order to comply with applicable law; the Initial Purchaser
     agrees that, if it receives timely notice and drafts under this clause (a),
     it will not take actions or make objections pursuant to this clause (a)
     such that the Company and the Subsidiary Guarantors are unable to comply
     with their obligations under Section 2.

          (b)    The Company and the Subsidiary Guarantors shall ensure that:

                 (i)     any Registration Statement and any amendment thereto
          and any Prospectus contained therein and any amendment or supplement
          thereto complies in all material respects with the Securities Act and
          the rules and regulations thereunder;

                 (ii)    any Registration Statement and any amendment thereto
          does not, when it becomes effective, contain an untrue statement of a
          material fact or omit to state a material fact required to be stated
          therein or necessary to make the statements therein not misleading;
          and


                                     10

                 (iii)   any Prospectus forming part of any Registration
          Statement, including any amendment or supplement to such Prospectus,
          does not include an untrue statement of a material fact or omit to
          state a material fact necessary in order to make the statements
          therein, in light of the circumstances under which they were made, not
          misleading.

          (c)    (1)  The Company shall advise the Initial Purchaser and, in
     the case of a Shelf Registration Statement, the Holders of Notes covered
     thereby, and, if requested by the Initial Purchaser or any such Holder,
     confirm such advice in writing:

                 (i)     when a Registration Statement and any amendment thereto
          has been filed with the Commission and when the Registration Statement
          or any post-effective amendment thereto has become effective; and

                 (ii)    of any request by the Commission for amendments or
          supplements to the Registration Statement or the Prospectus included
          therein or for additional information.

          (2)    During the Shelf Registration Period or the Exchange Offer
     Registration Period, as applicable, the Company shall advise the Initial
     Purchaser and, in the case of a Shelf Registration Statement, the Holders
     of Notes covered thereby, and, in the case of an Exchange Offer
     Registration Statement, any Exchanging Dealer that has provided in writing
     to the Company a telephone or facsimile number and address for notices,
     and, if requested by the Initial Purchaser or any such Holder or Exchanging
     Dealer, confirm such advice in writing:

                 (i)     of the issuance by the Commission of any stop order
          suspending the effectiveness of the Registration Statement or the
          initiation of any proceedings for that purpose;

                 (ii)    of the receipt by the Company of any notification with
          respect to the suspension of the qualification of the Notes included
          therein for sale in any jurisdiction or the initiation or threatening
          of any proceeding for such purpose; and

                 (iii)   of the happening of any event that requires the making
          of any changes in the Registration Statement or the Prospectus so
          that, as of such date, the Registration Statement or the Prospectus
          does not include an untrue statement of a material fact or omit to
          state a material fact necessary to make the statements therein (in the
          case of the Prospectus, in light of the circumstances under which they
          were made) not misleading (which advice shall be


                                     11


          accompanied by an instruction to suspend the use of the Prospectus
          until the requisite changes have been made).

          (d)    The Company and the Subsidiary Guarantors shall use their
     reasonable best efforts to obtain the withdrawal of any order suspending
     the effectiveness of any Registration Statement at the earliest possible
     time.

          (e)    The Company shall furnish to each Holder of Notes covered by
     any Shelf Registration Statement, without charge, at least one copy of such
     Shelf Registration Statement and any post-effective amendment thereto,
     including financial statements and schedules, and, if the Holder so
     requests in writing, all exhibits thereto (including those incorporated by
     reference).

          (f)    The Company shall, during the Shelf Registration Period,
     deliver to each Holder of Notes covered by any Shelf Registration
     Statement, without charge, as many copies of the Prospectus (including each
     preliminary Prospectus) included in such Shelf Registration Statement and
     any amendment or supplement thereto as such Holder may reasonably request;
     and the Company consents to the use of the Prospectus or any amendment or
     supplement thereto by each of the selling Holders of Notes in connection
     with the offering and sale of the Notes covered by the Prospectus or any
     amendment or supplement thereto.

          (g)    The Company shall furnish to each Exchanging Dealer that so
     requests, without charge, at least one copy of the Exchange Offer
     Registration Statement and any post-effective amendment thereto, including
     financial statements and schedules, and all exhibits thereto (including
     those incorporated by reference).

          (h)    The Company shall, during the Exchange Offer Registration
     Period, promptly deliver to each Exchanging Dealer, without charge, as many
     copies of the Prospectus included in such Exchange Offer Registration
     Statement and any amendment or supplement thereto as such Exchanging Dealer
     may reasonably request for delivery by such Exchanging Dealer in connection
     with a sale of Exchange Notes received by it pursuant to the Exchange
     Offer; and the Company consents to the use of the Prospectus or any
     amendment or supplement thereto by any such Exchanging Dealer, as provided
     in Section (2)(e) above.

          (i)    Prior to the Exchange Offer or any other offering of Notes
     pursuant to any Registration Statement, the Company and the Subsidiary
     Guarantors shall register or qualify or cooperate with the Holders of Notes
     included therein and their respective counsel in connection with the
     registration or qualification of such Notes for offer and sale under the
     securities or blue sky laws of such states as any such Holders reasonably


                                     12


     request in writing and do any and all other acts or things necessary or
     advisable to enable the offer and sale in such states of the Notes covered
     by such Registration Statement; PROVIDED,  HOWEVER, that the Company and
     the Subsidiary Guarantors will not be required to qualify as a foreign
     corporation or as a dealer in securities in any jurisdiction in which it is
     not then so qualified, to file any general consent to service of process or
     to take any action that would subject it to general service of process in
     any such jurisdiction where it is not then so subject or to subject itself
     to taxation in respect of doing business in any jurisdiction in which it is
     not otherwise so subject.

          (j)    The Company shall cooperate with the Holders to facilitate the
     timely preparation and delivery of certificates representing Notes to be
     sold pursuant to any Registration Statement free of any restrictive legends
     and in denominations of $1,000 or an integral multiple thereof and
     registered in such names as Holders may request prior to sales of Notes
     pursuant to such Registration Statement.

          (k)    Upon the occurrence of any event contemplated by paragraph
     (c)(2)(iii) of this Section 4, the Company and the Subsidiary Guarantors
     shall promptly prepare and file a post-effective amendment to any
     Registration Statement or an amendment or supplement to the related
     Prospectus or any other required document so that, as thereafter delivered
     to purchasers of the Notes included therein, the Prospectus will not
     include an untrue statement of a material fact or omit to state any
     material fact necessary to make the statements therein, in light of the
     circumstances under which they were made, not misleading and, in the case
     of a Shelf Registration Statement, notify the Holders to suspend use of the
     Prospectus as promptly as practicable after the occurrence of such an
     event.

          (l)    Not later than the effective date of any such Registration
     Statement hereunder, the Company shall provide a CUSIP number for the Notes
     or Exchange Notes, as the case may be, registered under such Registration
     Statement, and provide the Trustee with printed certificates for such Notes
     or Exchange Notes, in a form eligible for deposit with The Depository Trust
     Company.

          (m)    The Company shall use its best efforts to comply with all
     applicable rules and regulations of the Commission and shall make generally
     available to its security holders as soon as practicable after the
     effective date of the applicable Registration Statement an earnings
     statement satisfying the provisions of Section 11(a) of the Securities Act.

          (n)    The Company shall cause the Indenture to be qualified under
     the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"), in
     a timely manner.


                                     13


          (o)    The Company may require each Holder of Notes to be sold
     pursuant to any Shelf Registration Statement to furnish to the Company such
     information (including supplements thereto) regarding the Holder and the
     distribution of such Notes as the Company may from time to time reasonably
     require for inclusion in such Registration Statement and the Company and
     the Guarantors may exclude from such registration the Notes of any Holder
     that fails to furnish such information (including supplements thereto)
     within a reasonable period of time after receiving such request.

          (p)    The Company shall, if requested, promptly incorporate in a
     Prospectus supplement or post-effective amendment to a Shelf Registration
     Statement, such information as the Managing Underwriters, if any, and
     Majority Holders reasonably agree should be included therein, and shall
     make all required filings of such Prospectus supplement or post-effective
     amendment promptly upon notification of the matters to be incorporated in
     such Prospectus supplement or post-effective amendment.

          (q)    In the case of any Shelf Registration Statement, the Company
     and the Subsidiary Guarantors shall enter into such agreements (including
     underwriting agreements) and take all other appropriate actions in order to
     expedite or to facilitate the registration or the disposition of any Notes
     included therein, and in connection therewith, if an underwriting agreement
     is entered into, cause the same to contain indemnification provisions and
     procedures no less favorable than those set forth in Section 6 (or such
     other provisions and procedures acceptable to the Majority Holders and the
     Managing Underwriters, if any) with respect to all parties to be
     indemnified pursuant to Section 6.

          (r)    In the case of any Shelf Registration Statement, the Company
     and the Subsidiary Guarantors shall:

                 (i)      make reasonably available for inspection by the
          Holders of Notes to be registered thereunder, any underwriter
          participating in any disposition pursuant to such Shelf Registration
          Statement, and any attorney, accountant or other agent retained by the
          Holders or any such underwriter all relevant financial and other
          records, pertinent corporate documents and properties of the Company
          any and its subsidiaries;

                 (ii)    cause the Company's and the Subsidiary Guarantors'
          officers, directors and employees to supply all relevant information
          reasonably requested by the Holders or any such underwriter, attorney,
          accountant or agent in connection with any such Registration Statement
          as is customary for similar due diligence examinations and make such
          representatives of the Company and the Subsidiary Guarantors as shall
          be reasonably requested by the Initial Purchaser


                                     14


          or Managing Underwriters, if any, available for discussion of any such
          Registration Statement; PROVIDED, HOWEVER, that any information that
          is designated in writing by the Company or the Subsidiary Guarantors,
          in good faith, as confidential at the time of delivery of such
          information shall be kept confidential by the Holders or any such
          underwriter, attorney, accountant or agent, unless such disclosure is
          made in connection with a court proceeding or required by law, or such
          information becomes available to the public generally or through a
          third party without an accompanying obligation of confidentiality
          other than as a result of a disclosure of such information by any such
          Holder, underwriter, attorney, accountant or agent;

                 (iii)   make such representations and warranties to the Holders
          of Notes registered thereunder and the underwriters, if any, in form,
          substance and scope as are customarily made by issuers to underwriters
          in similar underwritten offerings as may be reasonably requested by
          them;

                 (iv)    obtain opinions of counsel to the Company and the
          Subsidiary Guarantors and updates thereof (which counsel and opinions
          (in form, scope and substance) shall be reasonably satisfactory to the
          Managing Underwriters, if any) addressed to each selling Holder and
          the underwriters, if any, covering such matters as are customarily
          covered in opinions requested in similar underwritten offerings and
          such other matters as may be reasonably requested by such Holders and
          underwriters;

                 (v)     obtain "cold comfort" letters and updates thereof from
          the independent certified public accountants of the Company and the
          Subsidiary Guarantors (and, if necessary, any other independent
          certified public accountants of any subsidiary of the Company or of
          any business acquired by the Company for which financial statements
          and financial data are, or are required to be, included in the
          Registration Statement), addressed to the underwriters, if any, and
          use reasonable efforts to have such letter addressed to the selling
          Holders of Notes registered thereunder (to the extent consistent with
          Statement on Auditing Standards No. 72 of the American Institute of
          Certified Public Accountants (AICPA) ("SAS 72")), in customary form
          and covering matters of the type customarily covered in "cold comfort"
          letters in connection with similar underwritten offerings, or if the
          provision of such "cold comfort" letters is not permitted by SAS No.
          72 or if requested by the Initial Purchaser or its counsel in lieu of
          a "cold comfort" letter, an agreed-upon procedures letter under
          Statement on Auditing Standards No. 35 of the AICPA, covering matters
          requested by the Initial Purchaser or its counsel; and


                                     15


                 (vi)    deliver such documents and certificates as may be
          reasonably requested by the Majority Holders and the Managing
          Underwriters, if any, and customarily delivered in similar offerings,
          including those to evidence compliance with Section 4(k) and with any
          conditions contained in the underwriting agreement or other agreement
          entered into by the Company.

          The foregoing actions set forth in clauses (iii), (iv), (v) and (vi)
     of this Section 4(r) shall be performed at (A) the effectiveness of such
     Shelf Registration Statement and each post-effective amendment thereto and
     (B) each closing under any underwriting or similar agreement as and to the
     extent required thereunder.

          (s)    The Company and the Subsidiary Guarantors shall, in the case
     of a Shelf Registration, use their best efforts to cause all Notes to be
     listed on any securities exchange or any automated quotation system on
     which similar securities issued by the Company are then listed if requested
     by the Majority Holders, to the extent such Notes satisfy applicable
     listing requirements.

          (t)    The Company and the Subsidiary Guarantors shall use their best
     efforts to cause the Exchange Notes or Notes, as the case may be, to be
     rated by two nationally recognized statistical rating organizations (as
     such term is defined in Rule 436(g)(2) under the 1933 Act).

          5.     REGISTRATION EXPENSES; REMEDIES.  (a)  The Company and the
Subsidiary Guarantors shall bear all expenses incurred in connection with the
performance of their obligations under Sections 2, 3 and 4 hereof, including
without limitation:  (i) all Commission or National Association of Securities
Dealers, Inc. registration and filing fees, (ii) all fees and expenses incurred
in connection with compliance with state securities or blue sky laws (including
reasonable fees and disbursements of counsel for any underwriters or Holders in
connection with blue sky qualification of any of the Exchange Notes or Notes),
(iii) all expenses of any persons in preparing or assisting in preparing, word
processing, printing and distributing any Registration Statement, any
Prospectus, any amendments or supplements thereto, any underwriting agreements,
securities sales agreements and other documents relating to the performance of
and compliance with this Agreement, (iv) all rating agency fees, if any, (v) all
fees and disbursements relating to the qualification of the Indenture under
applicable securities laws, (vi) the fees and disbursements of the Trustee and
its counsel, (vii) the fees and disbursements of counsel for the Company and the
Subsidiary Guarantors and, in the case of a Shelf Registration Statement, the
fees and disbursements, of one counsel for the Holders (which counsel shall be
selected by the Majority Holders and which counsel may also be counsel for the
Initial Purchaser) and in the case of any Exchange Offer Registration Statement,
the reasonable fees and expenses of counsel to the Initial Purchaser acting in
connection therewith and (viii) the fees and disbursements of the independent
public


                                     16


accountants of the Company and the Subsidiary Guarantors, including the expenses
of any special audits or "cold comfort" letters required by or incident to such
performance and compliance, but excluding fees and expenses of counsel to the
underwriters (other than fees and expenses set forth in clause (ii) above) or
the Holders and underwriting discounts and commissions and transfer taxes, if
any, relating to the sale or disposition of Notes by a Holder.

          (b)    The Notes provide that if (i) the Company fails to file any of
the Registration Statements required by this Agreement on or before the date
specified for such filing, (ii) any of such Registration Statements is not
declared effective by the Commission on or prior to the date specified for such
effectiveness (the "Effectiveness Target Date"), (iii) the Company fails to
consummate the Exchange Offer within 30 business days of the Effectiveness
Target Date with respect to the Exchange Offer Registration Statement or (iv)
the Shelf Registration Statement or the Exchange Offer Registration Statement is
declared effective but thereafter ceases to be effective or usable in connection
with resales of the Notes during the periods specified in this Agreement (each
such event referred to in clauses (i) through (iv) above a "Registration
Default"), then the Company will pay liquidated damages ("Liquidated Damages")
to each Holder of Notes, with respect to the first 90-day period immediately
following the occurrence of such Registration Default in an amount equal to
$0.05 per week per $1,000 principal amount of Notes held by such Holder.  The
amount of the Liquidated Damages will increase by an additional $0.05 per week
per $1,000 principal amount of Notes with respect to each subsequent 90-day
period until all Registration Defaults have been cured, up to a maximum amount
of Liquidated Damages of $0.30 per week per $1,000 principal amount of Notes.
Upon the filing of the required Registration Statement, the consummation of the
Exchange Offer or the effectiveness of a Shelf Registration Statement, as the
case may be, Liquidated Damages will cease to accrue from the date of such
filing, consummation or effectiveness, as the case may be; PROVIDED, HOWEVER,
that, if after the date such Liquidated Damages cease to accrue, a different
event specified in clause (i), (ii), (iii) or (iv) above occurs, Liquidated
Damages may again commence accruing pursuant to the foregoing provisions.

          (c)    Without limiting the remedies available to the Initial
Purchaser and the Holders, the Company and the Subsidiary Guarantors acknowledge
that any failure by the Company and the Subsidiary Guarantors to comply with
their respective obligations under Sections 2 and 3 hereof may result in
material irreparable injury to the Initial Purchaser or the Holders for which
there is no adequate remedy at law, that it will not be possible to measure
damages for such injuries precisely and that, in the event of any such failure,
the Initial Purchaser or any Holder may obtain such relief as may be required to
specifically enforce the Company's and the Subsidiary Guarantors' obligations
under Sections 2 and 3 hereof.


                                     17


          6.     INDEMNIFICATION AND CONTRIBUTION.  (a)  In connection with any
Registration Statement, the Company and each Guarantor jointly and severally
agree to indemnify and hold harmless each Holder of Notes covered thereby
(including the Initial Purchaser and, with respect to any Prospectus delivery as
contemplated by Sections 2(e) and 4(h) hereof, each Exchanging Dealer) the
directors, officers, employees and agents of such Holder and each person who
controls such Holder within the meaning of either the Securities Act or the
Exchange Act, against any and all losses, claims, damages or liabilities, joint
or several, to which they or any of them may become subject under the Securities
Act, the Exchange Act or other Federal or state statutory law or regulation, at
common law or otherwise, insofar as such losses, claims, damages or liabilities
(or actions in respect thereof) arise out of or are based upon any untrue
statement or alleged untrue statement of a material fact contained in such
Registration Statement as originally filed or in any amendment thereof, or in
any preliminary Prospectus or Prospectus, or in any amendment thereof or
supplement thereto, or arise out of or are based upon the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein (in the case of the Prospectus, in
light of the circumstances under which they were made) not misleading, and
agrees to reimburse each such indemnified party, as incurred, for any legal or
other expenses reasonably incurred by them in connection with investigating or
defending any such loss, claim, damage or liability (or action in respect
thereof); PROVIDED, HOWEVER, that the Company and each Guarantor will not be
liable in any case to the extent that any such loss, claim, damage or liability
arises out of or is based upon any such untrue statement or alleged untrue
statement or omission or alleged omission made therein in reliance upon and in
conformity with written information furnished to the Company by or on behalf of
any such Holder specifically for inclusion therein; PROVIDED FURTHER, HOWEVER,
that the Company and each Guarantor will not be liable in any case with respect
to any untrue statement or omission or alleged untrue statement or omission made
in any preliminary Prospectus or Prospectus, or in any amendment thereof or
supplement thereto to the extent that any such loss, claim, damage or liability
(or action in respect thereof) resulted from the fact that any Holder or
underwriter, in the case of a Shelf Registration sold Notes or Exchange Notes to
a person to whom there was not sent or given, at or prior to the written
confirmation of such sale, a copy of the Prospectus as then amended or
supplemented in any case where such delivery is required by the Securities Act,
if the Company had previously complied with the provisions of Section 4(c)(2)
and 4(f) or 4(g) hereof and if the untrue statement contained in or omission
from such preliminary Prospectus or Prospectus was corrected in the Prospectus
or then amended or supplemented.  This indemnity agreement will be in addition
to any liability that the Company or any Guarantor may otherwise have.

          The Company and each Guarantor also agree jointly and severally to
indemnify or contribute to Losses of, as provided in Section 6(d) hereof, any
underwriters of Notes registered under a Shelf Registration Statement, their
employees, officers, directors and agents and each person who controls such
underwriters on the same basis as that of the


                                     18


indemnification of the Initial Purchaser and the selling Holders provided in
this Section 6(a) and shall, if requested by any Holder, enter into an
underwriting agreement reflecting such agreement, as provided in Section 4(q)
hereof.

          (b)    Each Holder of Notes covered by a Registration Statement
(including the Initial Purchaser and, with respect to any Prospectus delivery as
contemplated by Sections 2(e) and 4(h) hereof, each Exchanging Dealer) severally
agrees to indemnify and hold harmless (i) the Company and each Guarantor, (ii)
each of the directors of the Company and each Guarantor, (iii) each of the
officers of the Company and the Subsidiary Guarantors who signs such
Registration Statement and (iv) each Person who controls the Company or any
Guarantor within the meaning of either the Securities Act or the Exchange Act to
the same extent as the foregoing indemnity from the Company and each Guarantor
to each such Holder, but only with respect to written information furnished to
the Company by or on behalf of such Holder specifically for inclusion in the
documents referred to in the foregoing indemnity.  This indemnity agreement will
be in addition to any liability that any such Holder may otherwise have.

          (c)    Promptly after receipt by an indemnified party under this
Section 6 of notice of the commencement of any action, such indemnified party
will, if a claim in respect thereof is to be made against the indemnifying party
under this Section 6, notify the indemnifying party in writing of the
commencement thereof; but the failure so to notify the indemnifying party (i)
will not relieve the indemnifying party from liability under paragraph (a) or
(b) above unless and to the extent it did not otherwise learn of such action and
such failure results in the forfeiture by the indemnifying party of substantial
rights and defenses, and (ii) will not, in any event, relieve the indemnifying
party from any obligations to any indemnified party other than the
indemnification obligation provided in paragraph (a) or (b) above.  The
indemnifying party shall be entitled to appoint counsel (including local
counsel) of the indemnifying party's choice at the indemnifying party's expense
to represent the indemnified party in any action for which indemnification is
sought (in which case the indemnifying party shall not thereafter be responsible
for the fees and expenses of any separate counsel retained by the indemnified
party or parties except as set forth below); PROVIDED, HOWEVER, that such
counsel shall be reasonably satisfactory to the indemnified party.
Notwithstanding the indemnifying party's election to appoint counsel to
represent the indemnified party in an action, the indemnified party shall have
the right to employ separate counsel (including local counsel), and the
indemnifying party shall bear the reasonable fees, costs and expenses of such
separate counsel (and local counsel) if (i) the use of counsel chosen by the
indemnifying party to represent the indemnified party would present such counsel
with an actual conflict of interest, (ii) the actual or potential defendants in,
or targets of, any such action include both the indemnified party and the
indemnifying party and the indemnified party shall have reasonably concluded
based on written advice from counsel that there may be legal defenses available
to it and/or other indemnified parties that are different from or additional to


                                     19


those available to the indemnifying party, (iii) the indemnifying party shall
not have employed counsel satisfactory to the indemnified party to represent the
indemnified party within a reasonable time after notice of the institution of
such action or (iv) the indemnifying party shall authorize the indemnified party
to employ separate counsel at the expense of the indemnifying party.  An
indemnifying party will not, without the prior written consent of the
indemnified parties, settle or compromise or consent to the entry of any
judgment with respect to any pending or threatened claim, action, suit or
proceeding in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnified parties are actual or potential
parties to such claim or action) unless such settlement, compromise or consent
includes an unconditional release of each indemnified party from all liability
arising out of such claim, action, suit or proceeding.

          (d)    In the event that the indemnity provided in paragraph (a) or
(b) of this Section 6 is unavailable to or insufficient to hold harmless an
indemnified party for any reason, then each applicable indemnifying party, in
lieu of indemnifying such indemnified party, shall have a joint and several
obligation to contribute to the aggregate losses, claims, damages and
liabilities (including legal or other expenses reasonably incurred in connection
with investigating or defending the same) (collectively "Losses") to which such
indemnified party may be subject in such proportion as is appropriate to reflect
the relative benefits received by such indemnifying party, on the one hand, and
such indemnified party, on the other hand, from the Initial Placement and the
Registration Statement that resulted in such Losses; PROVIDED, HOWEVER, that in
no case shall the Initial Purchaser or any subsequent Holder of any Note or
Exchange Note be responsible, in the aggregate, for any amount in excess of the
purchase discount or commission applicable to such Note, or in the case of an
Exchange Note, applicable to the Note that was exchangeable into such Exchange
Note, as set forth on the cover page of the Final Memorandum, nor shall any
underwriter be responsible for any amount in excess of the underwriting discount
or commission applicable to the Notes purchased by such underwriter under the
Registration Statement that resulted in such Losses.  If the allocation provided
by the immediately preceding sentence is unavailable for any reason, the
indemnifying party and the indemnified party shall contribute in such proportion
as is appropriate to reflect not only such relative benefits but also the
relative fault of such indemnifying party, on the one hand, and such indemnified
party, on the other hand, in connection with the statements or omissions that
resulted in such Losses as well as any other relevant equitable considerations.
Benefits received by the Company and the Subsidiary Guarantors shall be deemed
to be equal to the sum of (x) the total net proceeds from the Initial Placement
(before deducting expenses) as set forth on the cover page of the Final
Memorandum and (y) the total amount of additional interest that the Company was
not required to pay as a result of registering the Notes covered by the
Registration Statement that resulted in such Losses.  Benefits received by the
Initial Purchaser shall be deemed to be equal to the total purchase discounts
and commissions as set forth on the cover page of the Final Memorandum, and
benefits received by any other Holders shall be deemed to be equal to the


                                     20


value of receiving Notes or Exchange Notes, as applicable, registered under the
Securities Act.  Benefits received by any underwriter shall be deemed to be
equal to the total underwriting discounts and commissions, as set forth on the
cover page of the Prospectus forming a part of the Registration Statement that
resulted in such Losses.  Relative fault shall be determined by reference to
whether any alleged untrue statement or omission relates to information provided
by the indemnifying party, on the one hand, or by the indemnified party, on the
other hand.  The parties agree that it would not be just and equitable if
contribution were determined by pro rata allocation or any other method of
allocation that did not take account of the equitable considerations referred to
above.  Notwithstanding the provisions of this paragraph (d), no person guilty
of fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation.  For purposes of this Section 6,
each person who controls a Holder within the meaning of either the Securities
Act or the Exchange Act and each director, officer, employee and agent of such
Holder shall have the same rights to contribution as such Holder, and each
person who controls the Company or any Guarantor within the meaning of either
the Securities Act or the Exchange Act, each officer of the Company or any
Guarantor who shall have signed the Registration Statement and each director of
the Company and each Guarantor shall have the same rights to contribution as the
Company and each Guarantor, subject in each case to the applicable terms and
conditions of this paragraph (d).

          (e)    The provisions of this Section 6 will remain in full force and
effect, regardless of any investigation made by or on behalf of any Holder or
the Company or any Guarantor or any of the officers, directors or controlling
persons referred to in Section 6 hereof, and will survive the sale by a Holder
of Notes covered by a Registration Statement.

          7.     MISCELLANEOUS.

          (a)    NO INCONSISTENT AGREEMENT.  The Company and the Subsidiary
Guarantors have not, as of the date hereof, entered into, nor shall any of them,
on or after the date hereof, enter into, any agreement that conflicts with the
rights granted to the Holders herein or otherwise conflicts with the provisions
hereof.

          (b)    AMENDMENTS AND WAIVERS.  The provisions of this Agreement,
including the provisions of this sentence, may not be amended, qualified,
modified or supplemented, and waivers or consents to departures from the
provisions hereof may not be given, unless the Company has obtained the written
consent of the Holders of at least a majority of the then outstanding aggregate
principal amount of Notes (or, after the consummation of any Exchange Offer in
accordance with Section 2 hereof, of Exchange Notes); PROVIDED that, with
respect to any matter that directly or indirectly affects the rights of the
Initial Purchaser hereunder, the Company shall obtain the written consent of the
Initial Purchaser.  Notwithstanding the


                                     21


foregoing (except the foregoing proviso), a waiver or consent to departure from
the provisions hereof with respect to a matter that relates exclusively to the
rights of Holders whose Notes are being sold pursuant to a Registration
Statement and that does not directly or indirectly affect the rights of other
Holders may be given by the Majority Holders, determined on the basis of Notes
being sold rather than registered under such Registration Statement.

          (c)    NOTICES.  All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, first-class mail,
telex, telecopier, or air courier guaranteeing overnight delivery:

          (i)    if to a Holder, at the most current address given by such
     Holder to the Company in accordance with the provisions of this Section
     7(c), which address initially is, with respect to each Holder, the address
     of such Holder maintained by the Registrar under the Indenture, with a copy
     in like manner to NationsBanc Montgomery Securities LLC;

          (ii)   if to the Initial Purchaser, at NationsBank Corporate Center,
     100 North Tryon Street NCl-007-07-01, Charlotte, North Carolina 28255-0001;
     and

          (iii)   if to the Company or any Guarantor, c/o the Company at 2250
     South Tenth Street, San Jose, California 95112, Attention: Dave
     Worthington, with copies to J.F. Lehman & Company, 450 Park Avenue, Fifth
     Floor, New York, NY 10022, Attention:  Keith Oster.

          All such notices and communications shall be deemed to have been duly
given when received.  The Initial Purchaser, on the one hand, or the Company or
any Guarantor, on the other, by notice to the other party or parties may
designate additional or different addresses for subsequent notices or
communications.

          (d)    SUCCESSORS AND ASSIGNS.  This Agreement shall inure to the
benefit of and be binding upon the successors and assigns of each of the
parties, including, without the need for an express assignment or any consent by
the Company or any Guarantor thereto, subsequent Holders of Notes and/or
Exchange Notes.  The Company and the Subsidiary Guarantors hereby agree to
extend the benefits of this Agreement to any Holder of Notes and/or Exchange
Notes and any such Holder may specifically enforce the provisions of this
Agreement as if an original party hereto.

          (e)    COUNTERPARTS.  This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same Agreement.


                                     22


          (f)    HEADINGS.  The headings in this Agreement are for convenience
of reference only and shall not limit or otherwise affect the meaning hereof.

          (g)    GOVERNING LAW.  THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

          (h)    SEVERABILITY.  In the event that any one or more of the
provisions contained herein, or the application thereof in any circumstances, is
held invalid, illegal or unenforceable in any respect for any reason, the
validity, legality and enforceability of any such provision in every other
respect and of the remaining provisions hereof shall not be in any way impaired
or affected thereby, it being intended that all of the rights and privileges of
the parties shall be enforceable to the fullest extent permitted by law.

          (i)    NOTES HELD BY THE COMPANY, ETC.  Whenever the consent or
approval of Holders of a specified percentage of principal amount of Notes or
Exchange Notes is required hereunder, Notes or Exchange Notes, as applicable,
held by the Company or its Affiliates (other than subsequent Holders of Notes or
Exchange Notes if such subsequent Holders are deemed to be Affiliates solely by
reason of their holdings of such Notes or Exchange Notes) shall not be counted
in determining whether such consent or approval was given by the Holders of such
required percentage.



                                     23

          Please confirm that the foregoing correctly sets forth the agreement
among the Company, the Subsidiary Guarantors and you.


                                   Very truly yours,

                                   BURKE INDUSTRIES, INC.


                                   By:  /s/ KEITH OSTER
                                        -------------------------------------
                                        Name:  Keith Oster
                                        Title:  Secretary


                                   BURKE FLOORING PRODUCTS, INC.
                                   BURKE CUSTOM PROCESSING, INC.
                                   BURKE RUBBER COMPANY, INC.
                                   MERCER PRODUCTS COMPANY, INC.
                                   Each, a Subsidiary Guarantor


                                   By:  /s/ KEITH OSTER
                                        -------------------------------------
                                        Name:  Keith Oster
                                        Title:  Secretary


The foregoing Agreement is hereby
accepted as of the date first above written.

NATIONSBANC MONTGOMERY SECURITIES LLC


By:  /s/  DAVID APPLE
     ---------------------------
     Name:  David Apple
     Title:  Associate



                                                                         ANNEX A


          Each broker-dealer that receives Exchange Notes for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange Notes.  The Letter of
Transmittal states that by so acknowledging and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.  This Prospectus, as it may be amend or
supplemented from time to time, may be used by a broker-dealer in connection
with resales of Exchange Notes received in exchange for Notes where such Notes
were acquired by such broker-dealer as a result of market-making activities or
other trading activities.  The Company has agreed that, starting on the
Expiration Date (as defined herein) and ending on the close of business one year
after the Expiration Date, it will make this Prospectus available to any
broker-dealer for use in connection with any such resale.  See "Plan of
Distribution."



                                                                      ANNEX B


          Each broker-dealer that receives Exchange Notes for its own account in
exchange for Notes, where such Notes were acquired by such broker-dealer as a
result of market-making activities or other trading activities, must acknowledge
that it will deliver a prospectus in connection with any resale of such Exchange
Notes.  See "Plan of Distribution."



                                                                         ANNEX C


          Each broker-dealer that receives Exchange Notes for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange Notes. This
Prospectus, as it may be amended or supplemented from time to time, may be used
by a broker-dealer in connection with resales of Exchange Notes received in
exchange for Notes where such Notes were acquired as a result of market-making
activities or other trading activities. The Company has agreed that, starting on
the Expiration Date and ending on the close of business one year after the
Expiration Date, it will make this Prospectus, as amended or supplemented,
available to any broker-dealer for use in connection with any such resale. In
addition, until such date all dealers effecting transactions in the Exchange
Notes may be required to deliver a prospectus.



                                                                         ANNEX D


          If the undersigned is a broker-dealer that will receive Exchange Notes
for its own account in exchange for Notes, it represents that the Notes to be
exchanged for the Exchange Notes were acquired by it as a result of
market-making activities or other trading activities and acknowledges that it
will deliver a prospectus in connection with any resale of such Exchange  Notes;
however, by so acknowledging and by delivering a prospectus, the undersigned
will not be deemed to admit that it is an "underwriter" within the meaning of
the Securities Act.