Exhibit 1.9


                                       FORM OF

                      UNLIMITED GUARANTY AND SECURITY AGREEMENT
                      -----------------------------------------


                    This UNLIMITED GUARANTY AND SECURITY AGREEMENT
          ("Guaranty") is made as of the 22nd day of August, 1997, by
          ____________, a ______________ corporation, having its chief
          executive office at ____________________________________ (the
          "Guarantor"), in favor of the "Secured Parties" and Union Bank of
          California, N.A., as "Agent" for itself and for the other Secured
          Parties as defined in the "Credit Agreement" (as defined below).

                                 W I T N E S S E T H:

                    WHEREAS, American Eco Corporation, a corporation
          organized under the laws of the Province of Ontario (the "Parent
          Guarantor"), has entered into that certain Credit and Guaranty
          Agreement dated as of August 22, 1997 among American Eco Funding
          Corp., a wholly owned subsidiary of the Parent Guarantor (the
          "Borrower"), the Parent Guarantor, as guarantor of the Borrower's
          obligations thereunder, the institutions from time to time party
          thereto as lenders (the "Lenders"), the institutions from time to
          time party thereto as issuing banks (the "Issuing Banks"), and
          Union Bank of California, N.A., as agent (in such capacity, the
          "Agent") for the Lenders and the Issuing Banks and the other
          Secured Parties (as the same may be amended, restated,
          supplemented or otherwise modified from time to time, the "Credit
          Agreement"; unless otherwise defined herein, capitalized terms
          used herein shall have the meanings ascribed to them in the
          Credit Agreement), pursuant to which the Agent and the Lenders
          have agreed, subject to certain conditions precedent, to make
          Loans to the Borrower for the benefit of the Borrower and/or
          other Subsidiaries of the Parent Guarantor from time to time and
          the Issuing Banks have agreed, subject to certain conditions
          precedent, to issue Letters of Credit for the account of the
          Borrower and/or other Subsidiaries of the Parent Guarantor;
           
                    WHEREAS, the Guarantor is a wholly-owned Subsidiary of
          the Parent Guarantor and will derive direct and indirect economic
          benefit from the Loans and Letters of Credit and other financial
          accommodations made to or for the benefit of the Borrower and its
          Subsidiaries under the Credit Agreement and other Loan Documents
          (which benefit will include the repayment of certain debt
          obligations of the Guarantor with proceeds of the Loans); and

                    WHEREAS, in order to secure the prompt and complete
          payment, observance and performance of (i) all of the Obligations
          and (ii) all of the Guarantor's obligations and liabilities
          hereunder and in connection herewith, including, without
          limitation, the Guarantor's liability for the "Expenses" (as
          defined below) and interest on the Obligations and the Expenses
          (collectively, the "Secured Obligations"), the Agent and the
          Lenders have required as a condition, among others, to entering
          into the Credit Agreement and the other Loan Documents, that the
          Guarantor execute and deliver this Guaranty;

                    NOW, THEREFORE, for and in consideration of the
          foregoing, and for other good and valuable consideration, the
          receipt and sufficiency of which are hereby acknowledged, the
          Guarantor hereby agrees as follows:

                    SECTION 1.  Guaranty.  
                                --------
                    (a)  For value received and in consideration of each
          extension of credit now or hereafter made, given or granted to or
          for the direct or indirect benefit of the Borrower or other
          Subsidiaries of the Parent Guarantor by the Agent, Lenders and
          the Issuing Banks, or any of them (including, without limitation
          each loan or advance by renewal, refinancing or extension of the
          agreements described hereinabove or otherwise), or by any such
          party's assignee, the Guarantor unconditionally guarantees for
          the benefit of the Agent and each Secured Party the full and
          prompt payment when due, whether at maturity or earlier, by
          reason of acceleration or otherwise, and at all times thereafter,
          of all of the Obligations (including, without limitation,
          interest accruing following the filing of a bankruptcy petition
          by or against the Borrower, at the then applicable rate specified
          in the Credit Agreement, whether or not such interest is allowed
          as a claim in bankruptcy).

                    (b)  At any time after the occurrence of an Event of
          Default, the Guarantor shall pay to the Agent for its benefit and
          the benefit of the Secured Parties, on the Agent's demand and in
          immediately available funds, the full amount of the Obligations. 
          The Guarantor further agrees to pay to the Agent and reimburse
          the Agent for, on the Agent's demand and in immediately available
          funds, (i) all losses (including, without limitation, lost
          profits), fees, costs and expenses (including, without
          limitation, all court costs and attorneys' and paralegals' fees,
          costs and expenses) paid or incurred by the Agent or any Secured
          Party in: (A) endeavoring to collect all or any part of the
          Secured Obligations from, or in prosecuting any action against,
          the Borrower, any Subsidiary of the Borrower, or the Guarantor
          relating to the Credit Agreement, this Guaranty or the
          transactions contemplated thereby; (B) taking any action with
          respect to any security or Collateral securing the Obligations or
          the Guarantor's obligations hereunder; and (C) preserving,
          protecting or defending the enforceability of, or enforcing, this
          Guaranty or their respective rights hereunder (all such costs and
          expenses are hereinafter referred to as the "Expenses"), and (ii)
          interest on (A) the Obligations which do not constitute interest,
          (B) to the extent permitted by applicable law, the Obligations
          which do constitute interest, and (C) the Expenses, from the date
          of demand under this Guaranty until paid in full at the per annum
          rate of interest applicable to Reference Rate Loans under Section
          5.1(d) of the Credit Agreement.  The Guarantor hereby agrees that
          this Guaranty is an absolute guaranty of payment and is not a
          guaranty of collection.

                    (c)  The Guarantor agrees that, notwithstanding
          anything set forth in this Guaranty to the contrary, if, after
          the occurrence of an Event of Default, any Secured Party is
          prevented by applicable law from exercising its right to
          accelerate the maturity of all or any part of the Obligations, to
          collect interest on all or any part of the Obligations or to
          enforce or exercise any other right or remedy with respect to all
          or any part of the Obligations, the Guarantor shall pay to the
          Agent, for the benefit of such Secured Party, upon the Agent's
          demand therefor and in immediately available funds, the amount
          that would otherwise have been due and payable had such Secured
          Party been permitted to exercise such rights and remedies.

                    SECTION 2.  Grant of Security.  To secure the prompt
                                -----------------
          and complete payment, observance and performance of the Secured
          Obligations, the Guarantor hereby grants to the Agent for its
          benefit and the ratable benefit of the Secured Parties, a
          security interest in all of the Guarantor's right, title and
          interest in and to the following, in each case whether now owned
          or existing or hereafter acquired or arising and however and
          wherever arising or located (the "Guaranty Collateral"):

                    (a)  Equipment;

                    (b)  Inventory;

                    (c)  Receivables;

                    (d)  General Intangibles;

                    (e)  chattel paper, instruments and documents:  all
          chattel paper, all instruments, including, without limitation,
          all notes evidencing intercompany loans, and all bills of lading,
          warehouse receipts and other documents of title;

                    (f)  other Property:  all Property and interests in
          property of the Guarantor which may now be in or may hereafter
          come into the possession, custody or control of the Agent or any
          Secured Party, or any agent or affiliate of the Agent or any
          Secured Party, in any way or for any purpose (whether for
          safekeeping, deposit, custody, pledge, transmission, collection
          or otherwise); and all rights and interests of the Guarantor in
          respect of any and all (i) notes, drafts, letters of credit,
          stocks, bonds, and debt and equity securities, whether or not
          certificated, and warrants, options, puts and calls and other
          rights to acquire or otherwise relating to the same, and all
          securities accounts, financial assets and security entitlements,
          (ii) interest rate and currency exchange agreements, including,
          without limitation, cap, collar, floor, forward and similar
          agreements and interest rate protection agreements, (iii) cash
          and Cash Equivalents, and (iv) proceeds of loans, advances and
          other financial accommodations; and all other personal Property
          and interests in personal property of the Guarantor not
          specifically included in Sections 2(a) through 2(e) above; and
                                   -------------         ----
                                                             
                (g)  all accessions and additions to, substitutions and
          documents for, and replacements, proceeds and products of any of
          the foregoing Guaranty Collateral, and all payments under
          insurance (whether or not the Agent is the loss payee thereof),
          and any indemnity, warranty or guaranty, payable by reason of
          loss or damage to or otherwise with respect to any of the
          foregoing Guaranty Collateral, to the extent not otherwise
          included.

                    SECTION 3.  Obligations Unconditional.  The Guarantor
                                -------------------------
          hereby agrees that its obligations under this Guaranty shall be
          unconditional, irrespective of:

                    (a)  the lack of validity, unenforceability, avoidance
          or subordination of any of the Secured Obligations or any of the
          Loan Documents;

                    (b)  the absence of any attempt by, or on behalf of,
          any Secured Party or the Agent to collect, or to take any other
          action to enforce, all or any part of the Secured Obligations
          whether from or against the Borrower, any other guarantor of the
          Secured Obligations or any other Person;

                    (c)  the election of any remedy by, or on behalf of,
          any Secured Party or the Agent with respect to all or any part of
          the Secured Obligations;

                    (d)  the waiver, consent, extension, forbearance or
          granting of any indulgence by, or on behalf of, any Secured Party
          or the Agent with respect to any provision of any of the Loan
          Documents;

                    (e)  the failure of the Agent to take any steps to
          perfect and maintain its security interest in, or to preserve its
          rights to, any security or Collateral for the Secured Obligations
          (including, without limitation, the Guaranty Collateral);

                    (f)  the election by, or on behalf of, any one or more
          of the Secured Parties, in any proceeding instituted under
          Chapter 11 of Title 11 of the United States Code (11 U.S.C. 101
          et seq.) (the "Bankruptcy Code"), of the application of
          Section 1111(b)(2) of the Bankruptcy Code;

                    (g)  any borrowing or grant of a security interest by
          the Borrower, as debtor-in-possession, under Section 364 of the
          Bankruptcy Code;

                    (h)  the disallowance, under Section 502 of the
          Bankruptcy Code, of all or any portion of the claims of any of
          the Secured Parties or the Agent for repayment of all or any part
          of the Secured Obligations; or

                    (i)  any other circumstance which might otherwise
          constitute a legal or equitable discharge or defense of the
          Borrower or the Guarantor.

                    SECTION 4.  Representations and Warranties.  The
                                ------------------------------
          Guarantor represents and warrants as follows:

                    (a)  All of the Inventory and Equipment is located at
          the places specified on Exhibit A attached hereto and made a part
                                  ---------
          hereof, except for Inventory in transit, provided that Inventory
          and Equipment may be moved to other locations in accordance with
          Section 6(a).  All of the Inventory which is imported from a
          ------------
          location outside the United States arrives at one of the ports or
          other locations identified on Exhibit A.  If any location of
                                        ---------
          Inventory or Equipment is subject to a lease, sublease, mortgage
          or similar instrument, the name and address of each lessor,
          sublessor, lessee, sublessee and/or mortgagee (other than the
          Guarantor) is set forth on Exhibit A below the address of such
                                     ---------
          location or on a notice delivered to the Agent pursuant to
          Section 6(a).  The name and address of each bailee, processor,
          ------------
          warehouseman, consignee or other Person in possession of any of
          the Inventory or Equipment (each such Person being a "Bailee") on
          the date hereof, other than carriers and shippers of Inventory in
          transit, is set forth on Exhibit A, together with the address of
                                   ---------
          the location where such Inventory or Equipment is or may be held. 
          Except as otherwise indicated on Exhibit A, no Person (other than
                                           ---------
          a Person identified on Exhibit A as being a consignee) in
                                 ---------
          possession of any of the Inventory or Equipment conducts a
          business at the location of such Inventory or Equipment other
          than a business in the nature of warehousing or transporting
          goods for others.  In the event that any Inventory is in the
          possession of a Bailee, such Inventory shall not be evidenced by
          a negotiable instrument or document.

                    (b)  The principal place of business and chief
          executive office of the Guarantor are located at the address
          first specified above for the Guarantor or at such other address
          as the Guarantor may designate in accordance with Section 8, and
                                                            ---------
          all records concerning the Receivables are located at the
          addresses specified on Exhibit B attached hereto and made a part
                                 ---------
          hereof or at such other addresses as the Guarantor may designate
          in accordance with Section 8.  The amount represented by the
                             ---------
          Guarantor from time to time to the Agent as the amount owing by
          each account debtor or by all account debtors in respect of any
          accounts will, at such time, be the correct amount actually and
          unconditionally owing by such account debtor(s) thereunder to the
          best of the Guarantor's knowledge (except to the extent, if any,
          that such account debtor(s) may be entitled to normal trade
          discounts, adjustments, returns and allowances).

                    (c)  The Guarantor has good, indefeasible and
          merchantable title to the Guaranty Collateral.  The Guarantor is
          the legal and beneficial owner of the Guaranty Collateral free
          and clear of any Lien, except for the security interest created
          by this Guaranty and Liens permitted under Section 10.3 of the
          Credit Agreement.  Except as identified on Schedule 1.1.4 to the
          Credit Agreement, no financing statement or other instrument
          similar in effect covering all or any part of the Guaranty
          Collateral is on file in any recording office on the date hereof,
          except such as may have been filed in favor of the Agent relating
          to this Guaranty.

                    (d)  The correct corporate name of the Guarantor on the
          date hereof is as set forth on the first page of this Guaranty
          and, except as set forth on Exhibit C attached hereto and made a
                                      ---------
          part hereof, the Guarantor has no other corporate or fictitious
          name and has not, during the immediately preceding five (5)
          years, been known by or used any other corporate or fictitious
          name.  The Guarantor will not change its name, identity or
          structure in any manner which might make any financing statement
          filed hereunder seriously misleading, unless the Guarantor shall
          have given the Agent at least sixty (60) days' prior written
          notice thereof.

                    (e)  This Guaranty, together with the filing of the
          financing statements listed on Exhibit D attached hereto and made
                                         ---------
          a part hereof, upon the giving of value by the Secured Parties,
          creates a valid and perfected first priority security interest in
          the Guaranty Collateral, securing the payment of the Secured
          Obligations, and all such filings and other actions necessary or
          desirable to perfect and protect such security interest have been
          duly made or taken.

                    (f)  No consent of any other Person and no
          authorization, approval or other action by, and no notice to or
          filing with, any Governmental Authority is required (i) for the
          grant by the Guarantor of the security interest granted hereby or
          for the execution, delivery or performance of this Guaranty by
          the Guarantor, (ii) for the perfection (except for filings
          required in order to perfect a security interest in Collateral)
          or, except for the filing of the appropriate continuation
          statements with respect to the financing statements listed on
          Exhibit D, maintenance of the security interest created hereby
          ---------
          (including the maintenance of the first priority nature of such
          security interest) or (iii) for the exercise by the Agent of its
          rights and remedies hereunder.

                    (g)  There are no conditions precedent to the
          effectiveness of this Guaranty that have not been satisfied or
          waived in writing.

                    SECTION 5.  Further Assurances.  
                                ------------------
                    (a)  The Guarantor agrees that from time to time, at
          the expense of the Guarantor, the Guarantor will promptly execute
          and deliver all further instruments and documents, and take all
          further action, which may be necessary or desirable in the
          opinion of the Agent or its counsel, or that the Agent may
          reasonably request, in order to perfect and protect any security
          interest granted or purported to be granted hereby and to enable
          the Agent to exercise and enforce its rights and remedies
          hereunder with respect to any Guaranty Collateral, and the
          Guarantor shall in any event take such action as may be required
          to maintain the truthfulness and accuracy of the representations
          and warranties contained in Section 4.  Without limiting the
                                      ---------
          generality of the foregoing: (i) in the event that the Guarantor
          has accounts with respect to which the account debtor is the
          United States of America or any department, agency or
          instrumentality thereof (all such accounts being hereinafter
          referred to as "Government Receivables"), then the Guarantor
          shall, at the request of the Agent, with respect to such
          Government Receivables, promptly comply with the Assignment of
          Claims Act of 1940, as amended (31 U.S.C. Section  3727 et seq.),
                                                                  -- ---
          and shall promptly deliver to the Agent evidence of such
          compliance, which evidence shall be in form and substance
          satisfactory to the Agent in its sole discretion; (ii) the
          Guarantor shall execute and file such financing and continuation
          statements, and amendments thereto, and such other instruments or
          notices, as may be necessary or desirable, or as the Agent may
          request, in order to perfect and preserve the security interest
          granted or purported to be granted hereby; and (iii) the
          Guarantor shall obtain and deliver to the Agent notices,
          agreements (including, without limitation, subordination
          agreements) and other documents reasonably requested by the Agent
          for the purpose of giving advice of and perfecting the Liens
          granted to the Agent for its benefit and the ratable benefit of
          the Secured Parties and establishing the senior priority of the
          Agent's security interest over such other parties' rights and
          interests in respect of Equipment, Inventory or other Guaranty
          Collateral held in the possession of, Bailees, lessors,
          mortgagees or other third parties, and shall use its best efforts
          to cause such third parties to acknowledge or consent to such
          notices, agreements and other documents.

                    (b)  The Guarantor hereby authorizes the Agent to file
          one or more financing and continuation statements, and amendments
          thereto, relating to all or any part of the Guaranty Collateral
          without the signature of the Guarantor where permitted by law. 
          The Guarantor hereby agrees that a photocopy or other
          reproduction of this Guaranty or any financing statement covering
          the Guaranty Collateral or any part thereof shall be sufficient
          as a financing statement where permitted by law.

                    (c)  The Guarantor will keep and maintain at its own
          cost and expense satisfactory records of the Guaranty Collateral
          including, without limitation, a record of all payments received
          and all credits granted with respect to the Guaranty Collateral
          and all other dealings with the Guaranty Collateral.  If an Event
          of Default or Potential Event of Default has occurred and is
          continuing, for the Agent's further security, upon the Agent's
          request therefor, the Guarantor shall deliver and turn over any
          such records to the Agent or, at the direction of the Agent, to
          its representatives.

                    (d)  In the event that the Guarantor shall at any time
          hereafter acquire any interest in real property, whether as
          owner, lessee or otherwise, the Guarantor shall execute and
          deliver to the Agent, upon the Agent's request, such instruments
          and documents as the Agent may request to grant the Agent a Lien
          on such real property interest, and shall reimburse the Agent for
          the cost of recording the same.

                    SECTION 6.  Covenants Regarding Equipment and
                                ---------------------------------
          Inventory.  
          ---------

                    (a)  The Guarantor shall keep the Equipment and
          Inventory, except for Inventory in transit, at the locations
          specified on Exhibit A or, upon thirty (30) days' prior written
                       ---------
          notice to the Agent, at such other places in jurisdictions where
          all actions required by Section 5 shall have been taken with
                                  ---------
          respect to the Equipment and Inventory.

                    (b)  To the extent not paid by the Borrower, the
          Guarantor shall pay (i) all taxes, assessments and other
          governmental charges imposed upon the Guarantor or on any of its
          properties or assets or in respect of any of its franchises,
          business, income or Property before any penalty or interest
          accrues thereon, and (ii) all claims (including, without
          limitation, claims for labor, services, materials and supplies)
          for sums which have become due and payable and which by law have
          or may become a Lien (other than a Lien permitted under Section
          10.3 of the Credit Agreement) upon any of the Guarantor's
          properties or assets, prior to the time when any penalty or fine
          shall be incurred with respect thereto; provided, however, that
                                                  --------  -------
          no such taxes, assessments and governmental charges referred to
          in clause (i) above or claims referred to in clause (ii) above
          need be paid if being contested in good faith by appropriate
          proceedings promptly instituted and diligently conducted and if
          such reserve or other appropriate provision, if any, as shall be
          required in conformity with GAAP shall have been made therefor.

                    (c)  If any Equipment or Inventory is in the possession
          or control of any Bailee or any of the Guarantor's agents, the
          Guarantor shall notify such Bailee or agent of the Agent's
          security interest in such Equipment or Inventory and, upon the
          Agent's request following the occurrence of an Event of Default,
          direct such Bailee or agent to hold all such Equipment or
          Inventory for the Agent's account and subject to the Agent's
          instructions.

                    (d)  The Guarantor shall maintain or cause to be
          maintained in good repair, working order and condition, ordinary
          wear and tear excepted, all material properties (including,
          without limitation, leased properties) used or useful in the
          business of the Guarantor and from time to time will make or
          cause to be made all appropriate repairs, renewals and
          replacements thereof.

                    SECTION 7.  Insurance.  In the event the Borrower at
                                ---------
          any time or times hereafter shall fail to obtain or maintain any
          of the policies of insurance required under the Credit Agreement
          with respect to the Guaranty Collateral or to pay any premium in
          whole or in part relating thereto, then the Guarantor shall
          obtain and maintain such policies of insurance and pay such
          premiums and take any other action required pursuant to the
          Credit Agreement.

                    SECTION 8.  Covenants Regarding Receivables.  The
                                -------------------------------
          Guarantor shall keep its chief place of business and chief
          executive office and the office where it keeps its records
          concerning the Receivables at the location(s) therefor specified
          on Exhibit B or, upon thirty (30) days' prior written notice to
             ---------
          the Agent, at any other locations in a jurisdiction where all
          actions required by Section 5 shall have been taken with respect
                              ---------
          to the Receivables.

                    SECTION 9.  Access to Premises; Books and Records.  The
                                -------------------------------------
          Guarantor shall permit any authorized representative(s)
          designated by the Agent to visit and inspect any of the
          properties of the Guarantor, to examine, audit, check and make
          copies of its financial and accounting records, books, journals,
          orders, receipts and any correspondence and other data relating
          to its business and to the Guaranty Collateral (including,
          without limitation, in connection with environmental compliance,
          hazard or liability), and to discuss its affairs, finances and
          accounts with its officers and independent certified public
          accountants, all upon reasonable notice and at such reasonable
          times during normal business hours, as often as may be reasonably
          requested.   The Guarantor will keep proper books of record and
          account in which entries in conformity with GAAP (and all
          Requirements of Law) shall be made of all dealings and
          transactions in relation to its business and activities.

                    SECTION 10.  Transfers and Other Liens.  The Guarantor
                                 -------------------------
          shall not (a) sell, assign (by operation of law or otherwise) or
          otherwise dispose of, or grant any option with respect to, any of
          the Guaranty Collateral, except Inventory in the ordinary course
          of business, unless such sale, assignment, disposition or option
          is expressly authorized under the Credit Agreement, or (b) create
          or permit to exist any Lien, security interest, option or other
          charge or encumbrance upon or with respect to any of the Guaranty
          Collateral, except for the Liens and security interests granted
          under this Guaranty and Liens permitted under Section 10.3 of the
          Credit Agreement, and the Guarantor shall defend the right, title
          and interest of the Agent in and to the Guarantor's rights to
          such Guaranty Collateral, including, without limitation, the
          proceeds and products thereof, against the claims and demands of
          all Persons whatsoever.

                    SECTION 11.  Agent Appointed Attorney-in-Fact.  The
                                 --------------------------------
          Guarantor hereby irrevocably appoints the Agent the Guarantor's
          attorney-in-fact, with full authority in the place and stead of the
          Guarantor and in the name of the Guarantor or otherwise, from
          time to time in the Agent's discretion, to take any action and to
          execute any instrument which the Agent may deem necessary or
          advisable to accomplish the purposes of this Guaranty, including,
          without limitation, following the occurrence of an Event of
          Default:

                    (a)  to ask, demand, collect, sue for, recover,
          compromise, receive and give acquittance and receipts for moneys
          due and to become due under or in connection with any of the
          Guaranty Collateral;

                    (b)  to receive, indorse, and collect any drafts or
          other instruments, documents and chattel paper, in connection
          with clause (a) above; 
               ----------

                    (c)  to file any claims or take any action or institute
          any proceedings which the Agent may deem necessary or desirable
          for the collection of any of the Guaranty Collateral or otherwise
          to enforce the rights of the Agent with respect to any of the
          Guaranty Collateral; and

                    (d)  to receive, open and dispose of all mail addressed
          to the Guarantor.

          The Guarantor hereby ratifies all that such attorney-in-fact
          shall lawfully do or cause to be done by virtue hereof.  This
          power of attorney is coupled with an interest and shall be
          irrevocable.

                    SECTION 12.  Agent May Perform.  If the Guarantor fails
                                 -----------------
          to perform any agreement contained herein, the Agent may itself
          perform, or cause performance of, such agreement, and the
          expenses of the Agent incurred in connection therewith shall be
          payable by the Guarantor as Expenses under Section 1(b).  
                                                     ------------

                    SECTION 13.  The Agent's Rights and Duties.  The powers
                                 -----------------------------
          conferred on the Agent and the Secured Parties hereunder are
          solely to protect their interest in the Guaranty Collateral and
          shall not impose any duty upon any of them to exercise any such
          powers.  Except for the safe custody of any Guaranty Collateral
          in its possession and the accounting for moneys actually received
          by it hereunder, the Agent shall have no duty as to any Guaranty
          Collateral.  Any action taken or omitted to be taken by the Agent
          in connection with any of the Guaranty Collateral shall not
          result in any liability of the Agent to the Guarantor unless such
          action or omission shall be determined by a court of competent
          jurisdiction to have arisen out of the gross negligence or
          willful misconduct of the Agent.  The Agent may exercise any of
          its rights and execute any of its duties hereunder by or through
          agents or employees and shall be entitled to advice of counsel
          concerning all matters pertaining to its rights and duties
          hereunder.

                    SECTION 14.  Guarantor Remains Liable.  Anything herein
                                 ------------------------
          to the contrary notwithstanding, (a) the Guarantor shall remain
          liable under the contracts and agreements included in the
          Guaranty Collateral to the extent set forth therein to perform
          all of its duties and obligations thereunder to the same extent
          as if this Guaranty had not been executed, (b) the exercise by
          the Agent of any of the rights hereunder shall not release the
          Guarantor from any of its duties or obligations under the
          contracts and agreements included in the Guaranty Collateral, and
          (c) neither the Agent nor any Secured Party shall have any
          obligation or liability under the contracts and agreements
          included in the Guaranty Collateral by reason of this Guaranty,
          nor shall the Agent or any Secured Party be obligated to perform
          any of the obligations or duties of the Guarantor thereunder or
          to take any action to collect or enforce any claim for payment
          assigned hereunder.

                    SECTION 15.  Remedies.  If any Event of Default shall
                                 --------
          have occurred and be continuing:

                    (a)  Upon the occurrence of an Event of Default, the
          Agent may proceed directly and at once, without notice, against
          the Guarantor to obtain performance of and to collect and recover
          the full amount, or any portion, of the Secured Obligations,
          without first proceeding against the Borrower or any other
          Person, or against any security or Collateral for the Secured
          Obligations.  Subject only to the terms and provisions of the
          Credit Agreement, the Agent shall have the exclusive right to
          determine the application of payments and credits, if any, from
          the Guarantor, the Borrower or from any other Person on account
          of the Secured Obligations or any other liability of the
          Guarantor to the Agent or any Secured Party.

                    (b)  IF AN EVENT OF DEFAULT OCCURS, THE GUARANTOR
          HEREBY IRREVOCABLY WAIVES ALL RIGHTS TO NOTICE AND HEARING OF ANY
          KIND PRIOR TO THE EXERCISE BY THE AGENT OF ITS RIGHTS TO
          REPOSSESS THE GUARANTY COLLATERAL WITHOUT JUDICIAL PROCESS OR TO
          REPLEVY, ATTACH OR LEVY UPON SUCH GUARANTY COLLATERAL WITHOUT
          PRIOR NOTICE OR HEARING.

                    (c)  The Agent may exercise in respect of the Guaranty
          Collateral, in addition to other rights and remedies provided for
          herein or otherwise available to it, all the rights and remedies
          of a secured party upon default under the Uniform Commercial Code
          in effect in the State of New York at that time (the "Uniform
          Commercial Code") (whether or not the Uniform Commercial Code
          applies to the affected Guaranty Collateral), and also may (i)
          without notice, demand or legal process of any kind, all of which
          the Guarantor hereby waives to the extent permitted by applicable
          law, at any time or times enter the Guarantor's premises and take
          physical possession of the Guaranty Collateral and maintain such
          possession on the Guarantor's premises, at no cost to the Agent,
          or remove the Guaranty Collateral or any part thereof, to such
          other places as the Agent may desire, (ii) require the Guarantor
          to, and the Guarantor hereby agrees that it will at its own
          expense and upon request of the Agent forthwith, assemble all or
          part of the Guaranty Collateral as directed by the Agent and make
          it available to the Agent at a place to be designated by the
          Agent which is reasonably convenient to both parties, and (iii)
          without notice, except as specified below, sell, lease, assign,
          grant an option or options to purchase or otherwise dispose of
          the Guaranty Collateral or any part thereof in one or more
          parcels at public or private sale, at any of the Agent's offices
          or elsewhere, for cash, on credit or for future delivery, and
          upon such other terms as the Agent may deem commercially
          reasonable.  The Guarantor agrees that, to the extent notice of
          sale shall be required by law, at least five (5) business days'
          notice to the Guarantor of the time and place of any public sale
          or the time after which any private sale is to be made shall
          constitute commercially reasonable notification.  The Agent shall
          not be obligated to make any sale of Guaranty Collateral
          regardless of notice of sale having been given.  The Agent may
          adjourn any pusale from time to time by announcement at the time
          and place fixed therefor, and such sale may, without further
          notice, be made at the time and place to which it was so
          adjourned.  The Agent is hereby granted a license or other right
          to use, without charge, the Guarantor's trademarks, registered
          trademarks, trademark applications, service marks, registered
          service marks, service mark applications, patents, patent
          applications, trade names, rights of use of any name, labels,
          fictitious names, inventions, designs, trade secrets, computer
          programs, software, printouts and other computer materials,
          goodwill, registrations, copyrights, copyright applications,
          permits, licenses, franchises, customer lists, credit files,
          correspondence, and advertising materials, or any Property of a
          similar nature, as it pertains to the Guaranty Collateral, or any
          rights to any of the foregoing, in completing production of,
          advertising for sale, and selling any Guaranty Collateral, and
          the Guarantor's rights under all licenses and franchise
          agreements shall inure to the Agent's benefit.

                    (d)  Any cash held by the Agent as Guaranty Collateral
          and all cash proceeds received by the Agent in respect of any
          sale of, collection from, or other realization upon all or any
          part of the Guaranty Collateral may, in the discretion of the
          Agent, be held by the Agent as Cash Collateral for, and/or then
          or at any time thereafter be applied (after payment of any
          Expenses payable to the Agent pursuant to Section 1(b)) in whole
                                                    -----------
          or in part by the Agent against, all or any part of the Secured
          Obligations in such order as the Agent shall elect subject to any
          provision of the Credit Agreement governing the application of
          such cash, proceeds, or other realization upon the Collateral.

                    (e)  The Agent shall have the right, upon notice to the
          Guarantor of its intention to do so, to notify the account
          debtors or obligors under any Receivables of the assignment of
          such Receivables to the Agent and to direct such account debtors
          or obligors to make payment of all amounts due or to become due
          to the Guarantor thereunder directly to the Agent and, upon such
          notification and at the expense of the Guarantor, to enforce
          collection of any such Receivables, and to adjust, settle or
          compromise the amount or payment thereof, in the same manner and
          to the same extent as the Guarantor might have done.  After
          receipt by the Guarantor of the notice from the Agent referred to
          in the preceding sentence, (i) all amounts and proceeds
          (including instruments) received by the Guarantor in respect of
          the Receivables shall be received in trust for the benefit of the
          Agent hereunder, shall be segregated from other funds of the
          Guarantor and shall be forthwith paid over to the Agent in the
          same form as so received (with any necessary indorsement) to be
          held as Cash Collateral and shall be applied as provided by
          Section 15(d) above, and (ii) the Guarantor shall not adjust,
          -------------
          settle or compromise the amount or payment of any Receivable,
          release wholly or partly any account debtor or obligor thereof,
          or allow any credit or discount thereon.  In any suit, proceeding
          or action brought by the Agent under any account comprising part
          of the Guaranty Collateral, the Guarantor will save, indemnify
          and keep the Agent, each Secured Party harmless from and against
          all expense, loss or damages suffered by reason of any defense,
          setoff, counterclaim, recoupment or reduction of liability
          whatsoever of the obligor thereunder, arising out of a breach by
          the Guarantor of any obligation or arising out of any other
          agreement, Indebtedness or liability at any time owing to or in
          favor of such obligor or its successors from the Guarantor, and
          all such obligations of the Guarantor shall be and shall remain
          enforceable against andarantor and shall not be enforceable
          against the Agent or any Secured Party.

                    SECTION 16.  Waivers.  
                                 -------
                    (a)  The Guarantor hereby waives diligence,
          presentment, demand of payment, filing of claims with a court in
          the event of receivership or bankruptcy of the Borrower, protest
          or notice with respect to the Secured Obligations, all setoffs
          and counterclaims and all presentments, demands for performance,
          notices of nonperformance, protests, notices of protest, notices
          of dishonor and notices of acceptance of this Guaranty, the
          benefits of all statutes of limitation, and all other demands
          whatsoever (and shall not require that the same be made on the
          Borrower as a condition precedent to the Guarantor's obligations
          hereunder), and covenants that this Guaranty will not be
          discharged, except by the indefeasible payment in full (in cash)
          and performance of the Secured Obligations and any other
          obligations contained herein.  The Guarantor further waives all
          notices of the existence, creation or incurring of new or
          additional Indebtedness, arising either from additional Loans
          extended to the Borrower or otherwise, and also waives all
          notices that the principal amount, or any portion thereof, and/or
          any interest on any instrument or document evidencing all or any
          part of the Secured Obligations is due, notices of any and all
          proceedings to collect from the maker, any indorser or any other
          guarantor of all or any part of the Secured Obligations, or from
          any other Person, and, to the extent permitted by law, notices of
          exchange, sale, surrender or other handling of any security or
          Collateral given to the Agent to secure payment of all or any
          part of the Secured Obligations.

                    (b)  The Guarantor waives all rights and defenses that
          the Guarantor may have because the Borrower's debt is secured by
          real property.  This means, among other things: (1) The Agent may
          collect from the Guarantor without first foreclosing on any real
          or personal property collateral pledged by the Borrower; and (2)
          If the Agent forecloses on any real property collateral pledged
          by the Borrower: (A) The amount of the debt may be reduced only
          by the price for which that collateral is sold at the foreclosure
          sale, even if the collateral is worth more than the sale price;
          (B) The Agent may collect from the Guarantor even if the Agent,
          by foreclosing on the real property collateral, has destroyed any
          right the Guarantor may have to collect from the Borrower.  This
          is an unconditional and irrevocable waiver of any rights and
          defenses the Guarantor may have because the Borrower's debt is
          secured by real property.

                    (c)  The Guarantor waives all rights and defenses
          arising out of an election of remedies by the Agent, even though
          that election of remedies, such as a nonjudicial foreclosure with
          respect to security for the Secured Obligations, has destroyed
          the Guarantor's rights of subrogation and reimbursement against
          the principal.

                    (d)  The Secured Parties, or the Secured Parties acting
          through the Agent, are hereby authorized, without notice or
          demand and without affecting the liability of the Guarantor
          hereunder, from time to time, in accordance with, and subject to
          the terms of, the Credit Agreement, (i) to renew, extend,
          accelerate or otherwise change the time for payment of, or other
          terms relating to, all or any part of the Secured Obligations, or
          to otherwise modify, amend or change the terms of any of the Loan
          Documents, (ii) to accept partial payments on all or any part of
          the Secured Obligations, (iii) to take and hold security or
          Collateral for the payment of all or any part of the Secured
          Obligations, this Guaranty, or any other guaranties of all or any
          part of the Secured Obligations or other liabilities of the
          Borrower, (iv) to exchange, enforce, waive and release any such
          security or Collateral, (v) to apply such security or Collateral
          and direct the order or manner of sale thereof as in its
          discretion it may determine, (vi) to settle, release, exchange,
          enforce, waive, compromise or collect or otherwise liquidate all
          or any part of the Secured Obligations, this Guaranty, any other
          guaranty of all or any part of the Secured Obligations, and any
          security or Collateral for the Secured Obligations or for any
          such guaranty and (vii) to assign or otherwise transfer all or
          any portion of their respective rights, interests and obligations
          under the Credit Agreement and the other Loan Documents
          (including, without limitation, all or any portion of the
          Obligations, the Commitments and the Loans) to any other Person
          or Persons.  Any of the foregoing may be done in any manner,
          without affecting or impairing the obligations of the Guarantor
          hereunder.

                    SECTION 17.  Setoff.  In addition to any Liens granted
                                 ------
          under this Guaranty and the other Loan Documents and any rights
          now or hereafter granted under applicable law, upon the
          occurrence and during the continuance of any Event of Default,
          the Agent, each Secured Party, and any Affiliate of the Agent or
          any Secured Party is hereby authorized by the Guarantor at any
          time or from time to time, without notice to any Person (any such
          notice being hereby expressly waived) to set off and to
          appropriate and to apply any and all deposits (general or
          special, including, but not limited to, indebtedness evidenced by
          certificates of deposit, whether matured or unmatured (but not
          including trust accounts)) and any other Indebtedness at any time
          held or owing by the Agent, such Secured Party or any of their
          Affiliates to or for the credit or the account of the Guarantor
          against and on account of the Secured Obligations of the
          Guarantor to the Agent, such Secured Party or any of their
          Affiliates, irrespective of whether or not (i) the Agent or such
          Secured Party shall have made any demand hereunder or (ii) the
          Agent, at the request or with the consent of the Requisite
          Lenders, shall have declared the principal of and interest on the
          Loans and other amounts due under the Credit Agreement to be due
          and payable as permitted by Article XII thereof and even though
          such Secured Obligations may be contingent or unmatured.  Each
          Secured Party agrees that it shall not, without the express
          consent of the Requisite Lenders, and that it shall, to the
          extent it is lawfully entitled to do so, upon the request of the
          Requisite Lenders, exercise its setoff rights hereunder against
          any accounts of the Borrower, any of its Subsidiaries, or
          Guarantor now or hereafter maintained with such Secured Party or
          any Affiliate of either of them.

                    SECTION 18.  Financial Information.  The Guarantor
                                 ---------------------
          hereby assumes responsibility for keeping itself informed of the
          financial condition of the Borrower and any and all indorsers
          and/or other guarantors of all or any part of the Secured
          Obligations, and of all other circumstances bearing upon the risk
          of nonpayment of the Secured Obligations, or any part thereof,
          that diligent inquiry would reveal, and the Guarantor hereby
          agrees that none of the Secured Parties nor the Agent shall have
          any duty to advise the Guarantor of information known to any of
          them regarding such condition or any such circumstances.  In the
          event the Agent or any Secured Party, in its sole discretion,
          undertakes at any time or from time to time to provide any such
          information to the Guarantor, the Agent and such Secured Party
          shall be under no obligation (a) to undertake any investigation
          not a part of its regular business routine, (b) to disclose any
          information which the Agent or such Secured Party, pursuant to
          accepted or reasonable commercial finance or banking practices,
          wishes to maintain confidential or (c) to make any other or
          future disclosures of such information or any other information
          to the Guarantor.

                    SECTION 19.  No Marshalling; Reinstatement.  The
                                 -----------------------------
          Guarantor consents and agrees that none of the Secured Parties
          nor the Agent nor any Person acting for or on behalf of any of
          them shall be under any obligation to marshall any assets in
          favor of the Guarantor or against or in payment of any or all of
          the Secured Obligations.  The Guarantor further agrees that, to
          the extent that the Borrower, the Guarantor or any other
          guarantor of all or any part of the Secured Obligations makes a
          payment or payments to any Secured Party or the Agent, or any
          Secured Party or the Agent receives any proceeds of Collateral,
          which payment or payments or any part thereof are subsequently
          invalidated, declared to be fraudulent or preferential, set aside
          and/or required to be repaid to the Borrower, the Guarantor, such
          other guarantor or any other Person, or their respective estates,
          trustees, receivers or any other party, including, without
          limitation, the Guarantor, under any bankruptcy law, state or
          federal law, common law or equitable cause, then, to the extent
          of such payment or repayment, the part of the Secured Obligations
          which has been paid, reduced or satisfied by such amount shall be
          reinstated and continued in full force and effect as of the time
          immediately preceding such initial payment, reduction or
          satisfaction.

                    SECTION 20.  Waiver of Subrogation.  The Guarantor
                                 ---------------------
          hereby waives all rights of subrogation (whether contractual,
          under Section 509 of the Bankruptcy Code, or otherwise) to the
          claims of the Agent or any of the Secured Parties against the
          Borrower and all contractual, statutory and common law rights of
          reimbursement, contribution and indemnity from the Borrower which
          may otherwise have arisen in connection with this Guaranty or any
          of the other Loan Documents.  

                    SECTION 21.  Subordination.  
                                 -------------
                    (a)  The Guarantor agrees that any and all claims of
          the Guarantor against the Borrower, any indorser or any other
          guarantor of all or any part of the Secured Obligations, or
          against any of their respective properties, shall be subordinate
          and subject in right of payment to the prior indefeasible
          payment, in full and in cash, of all Secured Obligations. 
          Notwithstanding any right of the Guarantor to ask, demand, sue
          for, take or receive any payment from the Borrower, all rights,
          Liens and security interests of the Guarantor, whether now or
          hereafter arising and howsoever existing, in any assets of the
          Borrower (whether constituting part of the security or Collateral
          given to any Secured Party or the Agent to secure payment of all
          or any part of the Secured Obligations or otherwise) shall be and
          hereby are subordinated to the rights of the Secured Parties and
          the Agent in those assets.  The Guarantor shall have no right to
          possession of any such asset or to foreclose upon any such asset,
          whether by judicial action or otherwise, unless and until all of
          the Secured Obligations shall have been indefeasibly paid in full
          (in cash) and satisfied and all financing arrangements between
          the Borrower, the Agent and the Secured Parties have been
          terminated.

                    (b)  If all or any part of the assets of the Borrower,
          or the proceeds thereof, are subject to any distribution,
          division or application to the creditors of the Borrower, whether
          partial or complete, voluntary or involuntary, and whether by
          reason of liquidation, bankruptcy, arrangement, receivership,
          assignment for the benefit of creditors or any other action or
          proceeding, or if the business of the Borrower is dissolved or if
          substantially all of the assets of the Borrower are sold, then,
          and in any such event, any payment or distribution of any kind or
          character, either in cash, securities or other property, which
          shall be payable or deliverable upon or with respect to any
          Indebtedness of the Borrower to the Guarantor ("Borrower
          Indebtedness") shall be paid or delivered directly to the Agent
          for application on any of the Secured Obligations, due or to
          become due, until the Secured Obligations shall have first been
          indefeasibly paid in full (in cash) and satisfied.  The Guarantor
          irrevocably authorizes and empowers the Agent to demand, sue for,
          collect and receive every such payment or distribution and give
          acquittance therefor and to make and present for and on behalf of
          the Guarantor such proofs of claim and take such other action, in
          the Agent's own name or in the name of the Guarantor or
          otherwise, as the Agent may deem necessary or advisable for the
          enforcement of this Guaranty.  The Agent may vote such proofs of
          claim in any such proceeding, receive and collect any and all
          dividends or other payments or disbursements made thereon in
          whatever form the same may be paid or issued and apply the same
          on account of any of the Secured Obligations.

                    (c)  Should any payment, distribution, security or
          instrument or proceeds thereof be received by the Guarantor upon
          or with respect to the Borrower Indebtedness prior to the
          satisfaction of all of the Secured Obligations and the
          termination of all financing arrangements between the Borrower,
          the Agent and the Secured Parties, the Guarantor shall receive
          and hold the same in trust, as trustee, for the benefit of the
          Agent and the Secured Parties and shall forthwith deliver the
          same to the Agent, for its benefit and the ratable benefit of the
          Secured Parties, in precisely the form received (except for the
          indorsement or assignment of the Guarantor where necessary), for
          application to any of the Secured Obligations, due or not due,
          and, until so delivered, the same shall be held in trust by the
          Guarantor as the property of the Agent, for its benefit and the
          ratable benefit of the Secured Parties.  If the Guarantor fails
          to make any such indorsement or assignment to the Agent, the
          Agent or any of its agents, officers or employees are hereby
          irrevocably authorized to make the same.

                    (d)  The Guarantor agrees that until the Secured
          Obligations have been indefeasibly paid in full (in cash) and
          satisfied and all financing arrangements between the Borrower,
          the Agent and the Secured Parties have been terminated, the 
          Guarantor will not assign or transfer to any Person any
          claim the Guarantor has or may have against the Borrower.

                    SECTION 22.  Enforcement; Amendments; Waivers.  
                                 --------------------------------
                    (a)  No delay on the part of any Secured Party or the
          Agent in the exercise of any right or remedy arising under this
          Guaranty, the Credit Agreement, any of the other Loan Documents
          or otherwise with respect to all or any part of the Secured
          Obligations, the Guaranty Collateral or any other guaranty of or
          security for all or any part of the Secured Obligations shall
          operate as a waiver thereof, and no single or partial exercise by
          any such Person of any such right or remedy shall preclude any
          further exercise thereof.  

                    (b)  No modification or waiver of any of the provisions
          of this Guaranty shall be binding upon the Secured Parties or the
          Agent, except as expressly set forth in a writing duly signed and
          delivered by the party making such modification or waiver. 
          Failure by any of the Secured Parties or the Agent at any time or
          times hereafter to require strict performance by the Borrower,
          the Guarantor, any other guarantor of all or any part of the
          Secured Obligations or any other Person of any of the provisions,
          warranties, terms and conditions contained in any of the Loan
          Documents now or at any time or times hereafter executed by such
          Persons and delivered to the Agent or any Secured Party shall not
          waive, affect or diminish any right of the Agent or such Secured
          Party at any time or times hereafter to demand strict performance
          thereof, and such right shall not be deemed to have been waived
          by any act or knowledge of the Agent or any Secured Party, or
          their respective agents, officers or employees, unless such
          waiver is contained in an instrument in writing, directed and
          delivered to the Borrower or the Guarantor, as applicable,
          specifying such waiver, and is signed by the party or parties
          necessary to give such waiver under the Credit Agreement.  No
          waiver of any Event of Default by the Agent or any Secured Party
          shall operate as a waiver of any other Event of Default or the
          same Event of Default on a future occasion, and no action by the
          Agent or any Secured Party permitted hereunder shall in any way
          affect or impair the Agent's any Secured Party's rights and
          remedies or the obligations of the Guarantor under this Guaranty.
            
                    (c)  Any determination by a court of competent
          jurisdiction of the amount of any principal and/or interest, or
          any other amount, owing by the Borrower to the Agent or any
          Secured Party shall be conclusive and binding on the Guarantor
          irrespective of whether the Guarantor was a party to the suit or
          action in which such determination was made.

                    SECTION 23.  Survival of Representations and
                                 -------------------------------
          Warranties.  
          ----------
          The Guarantor covenants, warrants, and represents to the Agent
          and the Secured Parties that all representations and warranties
          of the Guarantor contained in this Guaranty shall be true at the
          time of the Guarantor's execution of this Guaranty, shall survive
          the execution, delivery and acceptance hereof by the parties
          hereto and the closing of the transactions described in the
          Credit Agreement and the other Loan Documents and shall continue
          in effect until the termination of this Guaranty in accordance
          with Section 24 below.
               ----------

                    SECTION 24.  Effectiveness; Termination.  This Guaranty
                                 --------------------------
          shall become effective upon its execution by the Guarantor and
          shall continue in full force and effect and may not be terminated
          or otherwise revoked until the Secured Obligations shall have
          been indefeasibly paid in full (in cash) and discharged and the
          Credit Agreement and financing arrangements between the Borrower,
          the Agent and the Secured Parties shall have been terminated. 
          THE GUARANTOR HEREBY EXPRESSLY WAIVE THE BENEFITS OF ANY LAW
          PURPORTING TO ALLOW A GUARANTOR TO REVOKE A CONTINUING GUARANTY
          WITH RESPECT TO ANY TRANSACTIONS OCCURRING AFTER THE DATE OF THE
          GUARANTY.  If, notwithstanding the foregoing, the Guarantor shall
          have any other right under applicable law to terminate or revoke
          this Guaranty, the Guarantor agrees that such termination or
          revocation shall not be effective until a written notice of such
          revocation or termination, specifically referring hereto, signed
          by the Guarantor, is actually received by the Agent.  Such notice
          shall not affect the right or power of any Secured Party or the
          Agent to enforce rights arising prior to receipt thereof by the
          Agent.  If the Agent or any Secured Party grants Loans or takes
          other action after the Guarantor terminates or revokes this
          Guaranty but before the Agent receives such written notice, the
          rights of the Agent or such Secured Party with respect thereto
          shall be the same as if such termination or revocation had not
          occurred.

                    SECTION 25.  Successors and Assigns.  This Guaranty
                                 ----------------------
          shall be binding upon the Guarantor and upon the successors and
          assigns of the Guarantor and shall inure to the benefit of the
          Secured Parties and the Agent and their respective successors and
          assigns; all references herein to such parties and to the
          Borrower shall be deemed to include their respective successors
          and assigns.  The successors and assigns of the Guarantor and the
          Borrower shall include, without limitation, their respective
          receivers, trustees and debtors-in-possession.

                    SECTION 26.  Officer Authority.  The Guarantor
                                 -----------------
          authorizes its Chairman, President, Treasurer, and each of its
          Executive Vice Presidents and Vice Presidents, Secretaries and
          Assistant Secretaries, respectively, from time to time, severally
          and not jointly, on behalf and in the name of the Guarantor from
          time to time in the discretion of such officer, to take or omit
          to take any and all action and to execute and deliver any and all
          documents and instruments which such officer may determine to be
          necessary or desirable in relation to, and perform any
          obligations arising in connection with, this Guaranty and any of
          the transactions contemplated hereby, and, without limiting the
          generality of the foregoing, hereby gives to each such officer
          severally the power and right on behalf of the Guarantor, without
          notice to or assent by the Guarantor, to do the following: (a) to
          execute and deliver any amendment, waiver, consent, supplement,
          other modification or reaffirmation of this Guaranty or any
          document covering any of the security for this Guaranty, and to
          perform any obligation arising in connection herewith or
          therewith; (b) to sell, transfer, assign, encumber or otherwise
          deal in or with the security for this Guaranty or any part
          thereof; (c) to grant Liens, security interests or other
          encumbrances on or in respect of any Property or assets of the
          Guarantor, whether now owned or hereafter acquired, in favor of
          the Secured Parties and the Agent; (d) to send notices,
          directions, orders and other communications to any Person
          relating to this Guaranty, or the security for all or any part of
          the Secured Obligations; (e) to take or omit to take any other
          action contemplated by or referred to in this Guaranty or any
          document covering any of the security for all or any part of the
          Secured Obligations; and (f) to take or omit to take any action
          with respect to this Guaranty, any of the security for all or any
          part of the Secured Obligations or any document covering any such
          security, all as such officer may determine in his or her sole
          discretion.  The undersigned hereby certifies that he/she has all
          necessary authority to grant and execute this Guaranty on behalf
          of the Guarantor.

                    SECTION 27.  Governing Law.  THIS GUARANTY SHALL BE
                                 -------------
          INTERPRETED, AND THE RIGHTS AND LIABILITIES OF THE PARTIES HERETO
          DETERMINED, IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

                    SECTION 28.  Consent to Jurisdiction; Counterclaims;
                                 --------------------------------------
          Forum Non Conveniens.  
          --------------------
          (a)  EACH OF THE AGENT AND THE GUARANTOR IRREVOCABLY AND
          UNCONDITIONALLY SUBMITS, FOR ITSELF AND ITS PROPERTY, TO THE
          NONEXCLUSIVE JURISDICTION OF ANY NEW YORK STATE COURT OR FEDERAL
          COURT SITTING IN NEW YORK, NEW YORK, AND ANY COURT HAVING
          JURISDICTION OVER APPEALS OF MATTERS HEARD IN SUCH COURTS, IN ANY
          ACTION OR PROCEEDING ARISING OUT OF, CONNECTED WITH, RELATED TO
          OR INCIDENTAL TO THE RELATIONSHIP ESTABLISHED AMONG THEM IN
          CONNECTION WITH THIS GUARANTY OR ANY OTHER LOAN DOCUMENT, WHETHER
          ARISING IN CONTRACT, TORT, EQUITY OR OTHERWISE, OR FOR
          RECOGNITION OR ENFORCEMENT OF ANY JUDGMENT, AND EACH OF THE
          PARTIES HERETO IRREVOCABLY AND UNCONDITIONALLY AGREES THAT ALL
          CLAIMS IN RESPECT OF ANY SUCH ACTION OR PROCEEDING MAY BE HEARD
          AND DETERMINED IN SUCH STATE COURT OR, TO THE EXTENT PERMITTED BY
          LAW, IN SUCH FEDERAL COURT.  THE GUARANTOR IRREVOCABLY DESIGNATES
          AND APPOINTS CT CORPORATION SYSTEM AS ITS AGENT (THE "PROCESS
          AGENT") FOR SERVICE OF ALL PROCESS IN ANY SUCH PROCEEDING IN ANY
          SUCH COURT, SUCH SERVICE BEING HEREBY ACKNOWLEDGED TO BE
          EFFECTIVE AND BINDING SERVICE IN EVERY RESPECT.  EACH OF THE
          AGENT AND THE GUARANTOR AGREES THAT A FINAL JUDGMENT IN ANY SUCH
          ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN
          OTHER JURISDICTIONS BY SUIT ON THE JUDGMENT OR IN ANY OTHER
          MANNER PROVIDED BY LAW.  THE GUARANTOR WAIVES IN ALL DISPUTES ANY
          OBJECTION THAT IT MAY HAVE TO THE LOCATION OF THE COURT
          CONSIDERING THE DISPUTE.

                    (b)  THE GUARANTOR AGREES THAT THE AGENT SHALL HAVE THE
          RIGHT TO PROCEED AGAINST THE GUARANTOR OR ITS PROPERTY IN A COURT
          IN ANY LOCATION TO ENABLE THE AGENT AND THE SECURED PARTIES TO
          REALIZE ON THE GUARANTY COLLATERAL OR ANY OTHER SECURITY FOR THE
          SECURED OBLIGATIONS, OR TO ENFORCE A JUDGMENT OR OTHER COURT
          ORDER ENTERED IN FAVOR OF THE AGENT OR ANY SECURED PARTY.  THE
          GUARANTOR AGREES THAT IT WILL NOT ASSERT ANY PERMISSIVE
          COUNTERCLAIMS IN ANY PROCEEDING BROUGHT BY THE AGENT OR ANY
          SECURED PARTY TO REALIZE ON THE GUARANTY COLLATERAL OR ANY OTHER
          SECURITY FOR THE SECURED OBLIGATIONS, OR TO ENFORCE A JUDGMENT OR
          OTHER COURT ORDER IN FAVOR OF THE AGENT OR ANY SECURED PARTY. 
          THE GUARANTOR WAIVES ANY OBJECTION THAT IT MAY HAVE TO THE
          LOCATION OF THE COURT IN WHICH THE AGENT OR ANY SECURED PARTY MAY
          COMMENCE A PROCEEDING DESCRIBED IN THIS SECTION.

                    SECTION 29.  Service of Process.  THE GUARANTOR
                                 ------------------
          IRREVOCABLY CONSENTS TO THE SERVICE OF PROCESS OF ANY OF THE
          AFOREMENTIONED COURTS IN ANY SUCH ACTION OR PROCEEDING BY THE
          MAILING OF COPIES THEREOF BY REGISTERED OR CERTIFIED MAIL,
          POSTAGE PREPAID, TO THE PROCESS AGENT OR THE GUARANTOR'S NOTICE
          ADDRESS SPECIFIED BELOW, SUCH SERVICE TO BECOME EFFECTIVE FIVE
          (5) DAYS AFTER SUCH MAILING. THE GUARANTOR IRREVOCABLY WAIVES ANY
          OBJECTION (INCLUDING, WITHOUT LIMITATION, ANY OBJECTION OF THE
          LAYING OF VENUE OR BASED ON THE GROUNDS OF FORUM NON CONVENIENS)
          WHICH IT MAY NOW OR HEREAFTER HAVE TO THE BRINGING OF ANY SUCH
          ACTION OR PROCEEDING WITH RESPECT TO THIS GUARANTY OR ANY OTHER
          LOAN DOCUMENT IN ANY JURISDICTION SET FORTH ABOVE.  NOTHING
          HEREIN SHALL AFFECT THE RIGHT TO SERVE PROCESS IN ANY OTHER
          MANNER PERMITTED BY LAW OR SHALL LIMIT THE RIGHT OF THE AGENT TO
          BRING PROCEEDINGS AGAINST THE GUARANTOR IN THE COURTS OF ANY
          OTHER JURISDICTION.

                    SECTION 30.  Waiver of Jury Trial.  EACH OF THE AGENT
                                 --------------------
          AND THE GUARANTOR IRREVOCABLY WAIVES TRIAL BY JURY IN ANY ACTION
          OR PROCEEDING WITH RESPECT TO THIS GUARANTY OR ANY OTHER LOAN
          DOCUMENT.

                    SECTION 31.  Notices.  Unless otherwise specifically
                                 -------
          provided herein, any notice or other communication herein
          required or permitted to be given shall be in writing and may be
          personally served, telecopied, telexed or sent by courier service
          or United States mail and shall be deemed to have been given when
          delivered in person or by courier service, upon receipt of a
          telecopy or telex or four (4) Business Days after deposit in the
          United States mail with postage prepaid and properly addressed. 
          For the purposes hereof, the addresses of the parties hereto
          (until notice of a change thereof is delivered as provided in
          this Section 31) shall be as set forth below:
               ----------

               if to the Guarantor, at

                    c/o American Eco Corporation
                    11011 Jones Road
                    Houston, Texas  77070
                    Attention:  David L. Norris
                    Telecopy:  (281) 774-7006

               with a copy to

                    Reid & Priest LLP
                    40 West 57th Street
                    New York, New York  10019
                    Attention: Bruce A. Rich, Esq.
                    Telecopy:  (212) 603-2001

               if to the Agent, at

                    Union Bank of California, N.A.
                    Environmental Services
                    445 South Figueroa Street, 15th Floor
                    Los Angeles, California  90071
                    Attention: Vicente C. Bendanillo, Jr.
                    Telecopy: (213) 236-4096

               with a copy to

                    Sidley & Austin
                    555 West Fifth Street, 40th Floor
                    Los Angeles, California  90013
                    Attention: Edward D. Eddy, Esq.
                    Telecopy: (213) 896-6600

          or, as to each party, at such other address as may be designated
          by such party in a written notice to the other party.

                    SECTION 32.  Construction.
                                 ------------

                    (a)  The parties acknowledge that each party and its
          counsel have reviewed and revised this Guaranty and that the
          normal rule of construction to the effect that any ambiguities
          are to be resolved against the drafting party shall not be
          employed in the interpretation of this Guaranty or any amendments
          or exhibits hereto.

                    (b)  The words "hereof", "herein" and "hereunder" and
          words of like import when used in this Guaranty shall refer to
          this Guaranty as a whole and not to any particular provision of
          this Guaranty and section references are to this Guaranty unless
          otherwise specified.

                    (c)  All terms defined in this Guaranty in the singular
          shall have comparable meanings when used in the plural, and vice
                                                                      ----
          versa, unless otherwise specified.
          -----

                    (d)  Unless otherwise defined herein or in the Credit
          Agreement, terms used in Article 9 of the Uniform Commercial Code
          are used herein as therein defined.

                    (e)  Section headings in this Guaranty are included
          herein for convenience of reference only and shall not constitute
          a part of this Guaranty for any other purpose. 

                    SECTION 33.  Execution in Counterparts.  This Guaranty
                                 -------------------------
          and any amendments, waivers, consents or supplements hereto may
          be executed in any number of counterparts and by different
          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.

                    SECTION 34.  Severability.  Wherever possible, each
                                 ------------
          provision of this Guaranty shall be interpreted in such manner as
          to be effective and valid under applicable law, but if any
          provision of this Guaranty shall be prohibited by or invalid
          under such law, such provision shall be ineffective to the extent
          of such prohibition or invalidity without invalidating the
          remainder of such provision or the remaining provisions of this
          Guaranty.

                    SECTION 35.  Merger.  This Guaranty represents the
                                 ------
          final agreement of the Guarantor with respect to the matters
          contained herein and may not be contradicted by evidence of prior
          or contemporaneous agreements between the Guarantor and the Agent
          or any Secured Party.

                    IN WITNESS WHEREOF, this Guaranty has been duly
          executed by the Guarantor as of the day and year first set forth
          above.

                                   [GUARANTOR]



                                   By:__________________________ 
                                   Name:________________________
                                   Title:_______________________ 



          Accepted and agreed to
          as of the ___ day of ______, 1997.

          UNION BANK OF CALIFORNIA, N.A.,
          as Agent



          By:__________________________                          
          Name:________________________
          Title:_______________________



          By:__________________________                          
          Name:________________________
          Title:_______________________


     


                                      EXHIBIT A
                                          to
                      Unlimited Guaranty and Security Agreement

                         Locations of Inventory and Equipment
                        ------------------------------------

               Locations Owned or Leased by the Guarantor
               ------------------------------------------
               None, except:




               Bailees
               -------
               None, except:




               Ports and Other Points of Entry Into the United States
               ------------------------------------------------------
               None, except:

     


                                      EXHIBIT B
                                          to
                      Unlimited Guaranty and Security Agreement

                           Address Where Records Concerning
                                 Accounts Are Located
                                --------------------

               Chief Executive Office
               ----------------------


               Other Addresses
               ---------------
               None, except:


     


                                      EXHIBIT C
                                          to
                      Unlimited Guaranty and Security Agreement

                            Corporate or Fictitious Names
                            -----------------------------

               None, except:


     


                                      EXHIBIT D
                                          to
                      Unlimited Guaranty and Security Agreement

                        Financing Statements Naming the Agent
                        -------------------------------------
                                   as Secured Party
                                  ----------------

               None, except: