Document:

<PAGE>
                                                                     EXHIBIT 4.2

                                                                  Execution Copy

                              MOLL INDUSTRIES, INC.
                                     COMPANY

                                       AND

                       STATE STREET BANK AND TRUST COMPANY
                                     TRUSTEE

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

                          FIRST SUPPLEMENTAL INDENTURE

                          DATED AS OF DECEMBER 28, 2001

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

                                       TO

                     THE INDENTURE DATED AS OF JUNE 26, 1998
      BETWEEN MOLL INDUSTRIES, INC. (F/K/A ANCHOR ADVANCED PRODUCTS, INC.)
              AND STATE STREET BANK AND TRUST COMPANY, AS TRUSTEE,
               RELATING TO $130 MILLION AGGREGATE PRINCIPAL AMOUNT
             OF 10 1/2% SERIES B SENIOR SUBORDINATED NOTES DUE 2008

<PAGE>

                          FIRST SUPPLEMENTAL INDENTURE

         THIS FIRST SUPPLEMENTAL INDENTURE (the "Supplemental Indenture") is
made as of the 28th day of December, 2001, between Moll Industries, Inc. (f/k/a
Anchor Advanced Products, Inc.) (the "Company") and State Street Bank and Trust
Company, as trustee (the "Trustee").

         WHEREAS, the Company and the Trustee heretofore executed and delivered
an Indenture, dated as of June 26, 1998 (the "Indenture"); and

         WHEREAS, pursuant to the Indenture, the Company issued and the Trustee
authenticated and delivered $130 million aggregate principal amount of the
Company's 10 1/2% Senior Subordinated Notes due 2008 (the "Initial Notes"); and

         WHEREAS, pursuant to an exchange offer registered with the Securities
and Exchange Commission on a Registration Statement No. 333-60857 on Form S-4,
the Company offered to, and did, exchange $130 million in aggregate principal
amount of its 10 1/2% Series B Senior Subordinated Notes due 2008 (the "Exchange
Notes" and, together with the Initial Notes, the "Notes") for $130 million in
aggregate principal amount of the Initial Notes; and

         WHEREAS, Section 9.02 of the Indenture provides that the Company, when
authorized by resolutions of its Board of Directors, and the Trustee, with the
written consent of the Holders of not less than a majority in aggregate
principal amount of the Notes outstanding, may amend the Indenture, subject to
certain exceptions (none of which is applicable to the amendments (the
"Amendments") contained in Section 2.01 of this Supplemental Indenture)
specified in Section 9.02 of the Indenture; and

         WHEREAS, pursuant to its Offer to Purchase and Consent Solicitation,
dated September 19, 2001, as amended as of October 11, 2001 and as extended (the
"Consent Solicitation"), the Company solicited consents of the Holders to the
Amendments, which if adopted would (i) amend the Indenture by deleting therefrom
the provisions set forth below, and (ii) amend Section 1.01 of the Indenture by
amending the definition of the term "Subsidiary" therein; and

         WHEREAS, the Holders of not less than a majority in aggregate principal
amount of the outstanding Notes have duly consented to the Amendments set forth
in this Supplemental Indenture in accordance with Section 9.02 of the Indenture;
and

         WHEREAS, the Company has heretofore delivered or is delivering
contemporaneously herewith to the Trustee (i) a copy of resolutions of its Board
of Directors authorizing the execution, delivery and performance of this
Supplemental Indenture, (ii) evidence of the written consent of the Holders set
forth in the immediately preceding paragraph, (iii) an Officers' Certificate in
compliance with and to the effect set forth in Sections 1.01, 9.02 and 9.06 of
the Indenture and (iv) an Opinion of Counsel in compliance with and to the
effect set forth in Sections 1.01, 9.02 and 9.06 of the Indenture; and

<PAGE>

         WHEREAS, all conditions necessary to authorize the execution and
delivery of this Supplemental Indenture and to make this Supplemental Indenture
valid and binding have been complied with or have been done or performed;

         NOW, THEREFORE, in consideration of the foregoing and notwithstanding
any provision of the Indenture which, absent this Supplemental Indenture, might
operate to limit such action, the Company, Holdings and the Trustee agree as
follows for the equal and ratable benefit of the Holders of the Notes:

                                    ARTICLE I
                                   DEFINITIONS

         SECTION 1.01. GENERAL. For all purposes of the Indenture and this
Supplemental Indenture, except as otherwise expressly provided or unless the
context otherwise requires:

         (a) the words "herein", "hereof" and "hereunder" and other words of
similar import refer to the Indenture and this Supplemental Indenture as a whole
and not to any particular Article, Section or subdivision; and

         (b)      capitalized terms used but not defined herein shall have the
meanings assigned to them in the Indenture.

                                   ARTICLE II
                              AMENDMENTS AND WAIVER

         SECTION 2.01. AMENDMENTS. Subject to Section 3.01 hereof, the Indenture
is hereby amended in the following respects:

         (a)      Section 1.01 of the Indenture is hereby amended by amending
the definition of the term "Subsidiary" therein to read as follows:

                  "Subsidiary" means, with respect to any Person, (i) any
         corporation, association or other business entity of which more than
         50% of the total voting power of shares of Capital Stock entitled
         (without regard to the occurrence of any contingency) to vote in the
         election of directors, managers or trustees thereof is at the time
         owned or controlled, directly or indirectly, by such Person or one of
         more of the other Subsidiaries of that Person (or a combination
         thereof) and (ii) any partnership (a) the sole general partner or the
         managing general partner of which is such Person or a Subsidiary of
         such Person or (b) the only general partners of which are such Person
         or of one or more Subsidiaries of such Person (or any combination
         thereof). For purposes of this Indenture, any reference to a
         "Subsidiary" of the Company shall be deemed to exclude any entity
         organized or incorporated under the laws of any jurisdiction other than
         the United States of

                                       2
<PAGE>

         America, its territories and possessions, any State of the United
         States, and the District of Columbia.

         (b)      The Indenture is hereby further amended by deleting Sections
4.02 to 4.13, inclusive, Sections 4.15 to 4.18, inclusive, Sections 5.01 and
5.02, Sections 6.01(c), (d), (e), (f) and (i), and Sections 11.03 and 11.04
thereof in their entirety.

         (c)      Section 12.02 of the Indenture is hereby amended by amending
and restating the first paragraph thereof to read as follows:

                  Any notice or communication by the Company, a Guarantor or the
         Trustee to the others is duly given if in writing and delivered in
         Person or mailed by first class mail (registered or certified, return
         receipt requested), telex, telecopier or overnight air courier
         guarantying next day delivery, to the others' address:

                           If to the Company and/or any Guarantor:

                           Moll Industries, Inc.
                           William W. Teeple
                           Vice President and
                           Chief Financial Officer
                           2100 S.W. 71st Terrace
                           Davie, FL  33317
                           Fax:  954-474-5992

                           With a copy to:

                           Nora J. Schneider, Esq.
                           Choate, Hall & Stewart
                           Exchange Place
                           53 State Street
                           Boston, MA  02109-2891
                           Telecopier No.:  (617) 248-4000

                           If to the Trustee:

                           State Street Bank and Trust Company
                           225 Asylum Street
                           Hartford, CT  06103
                           Attention:  Corporate Trust Department
                           Telecopier No.:   (860) 244-1889

                                       3
<PAGE>

                           With a copy to:

                           Bruce M. Lutsk, Esq.
                           Reid & Riege, P.C.
                           One State Street
                           Hartford, CT  06103
                           Telecopier No.:  (860) 240-1002

                                   ARTICLE III
                                  MISCELLANEOUS

         SECTION 3.01. EFFECTIVENESS. This Supplemental Indenture shall become
effective upon its execution and delivery by the Company and the Trustee.
Notwithstanding the execution and delivery of the Supplemental Indenture by the
Company and the Trustee, the Amendments shall become effective only concurrently
with the payment of the Purchase Price (as defined in the Consent Solicitation)
and the making of the Consent Payment (as defined in the Consent Solicitation).
The Purchase Price and Consent Payment will be deemed to have been made when
paid by the deposit with the Depositary (as defined in the Consent
Solicitation), which will act as the agent for the tendering and consenting
Holders and transmit such payment to such Holders. The Indenture will remain in
effect without giving effect to the Amendments until the Purchase Price is paid
and the Consent Payment is made. Upon the execution and delivery of this
Supplemental Indenture by the Company and the Trustee, the Indenture shall be
supplemented in accordance herewith, and this Supplemental Indenture shall form
a part of the Indenture for all purposes, and every Holder of Notes heretofore
or hereafter authenticated and delivered under the Indenture shall be bound
thereby. Notwithstanding the foregoing provisions of this Section 3.01, if the
Purchase Price is not paid and the Consent Payment is not made on or prior to
December 19, 2001, the Amendments will not become effective and this
Supplemental Indenture will become null and void.

         SECTION 3.02. INDENTURE REMAINS IN FULL FORCE AND EFFECT. Except as
supplemented hereby, all provisions in the Indenture shall remain in full force
and effect.

         SECTION 3.03. INDENTURE AND SUPPLEMENTAL INDENTURE CONSTRUED TOGETHER.
This Supplemental Indenture is an indenture supplemental to and in
implementation of the Indenture, and the Indenture and this Supplemental
Indenture shall henceforth be read and construed together.

         SECTION 3.04. CONFIRMATION AND PRESERVATION OF INDENTURE. The Indenture
as supplemented by this Supplemental Indenture is in all respects confirmed and
preserved.

         SECTION 3.05. CONFLICT WITH TRUST INDENTURE ACT. If any provision of
this Supplemental Indenture limits, qualifies or conflicts with any provision of
the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"), that is
required under the Trust Indenture Act to be part of and govern any provision of
this Supplemental Indenture, the provision of the

                                       4
<PAGE>

Trust Indenture Act shall control. If any provision of this Supplemental
Indenture modifies or excludes any provision of the Trust Indenture Act that may
be so modified or excluded, the provision of the Trust Indenture Act shall be
deemed to apply to the Indenture as so modified or to be excluded by this
Supplemental Indenture, as the case may be.

         SECTION 3.06. SEVERABILITY. In case any provision in this Supplemental
Indenture shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

         SECTION 3.07. HEADINGS. The Article and Section headings of this
Supplemental Indenture have been inserted for convenience of reference only, are
not to be considered a part of this Supplemental Indenture and shall in no way
modify or restrict any of the terms or provisions hereof.

         SECTION 3.08. BENEFITS OF SUPPLEMENTAL INDENTURE, ETC. Nothing in this
Supplemental Indenture or the Notes, express or implied, shall give to any
Person, other than the parties hereto and thereto and their successors hereunder
and thereunder and the Holders of the Notes, any benefit of any legal or
equitable right, remedy or claim under the Indenture, this Supplemental
Indenture or the Notes.

         SECTION 3.09. SUCCESSORS. All agreements of the Company and Holdings in
this Supplemental Indenture shall bind their respective successors. All
agreements of the Trustee in this Supplemental Indenture shall bind its
successors.

         SECTION 3.10. TRUSTEE NOT RESPONSIBLE FOR RECITALS. The recitals
contained herein shall be taken as the statements of the Company and Holdings,
and the Trustee assumes no responsibility for their correctness. The Trustee
shall not be liable or responsible for the validity or sufficiency of this
Supplemental Indenture.

         SECTION 3.11. CERTAIN DUTIES AND RESPONSIBILITIES OF THE TRUSTEE. In
entering into this Supplemental Indenture, the Trustee shall be entitled to the
benefit of every provision of the Indenture relating to the conduct or affecting
the liability or affording protection to the Trustee, whether or not elsewhere
herein so provided.

         SECTION 3.12. GOVERNING LAW. The internal law of the State of New York
shall govern and be used to construe this Supplemental Indenture.

         SECTION 3.13. COUNTERPART ORIGINALS. The parties may sign any number of
copies of this Supplemental Indenture. Each signed copy shall be original, but
all of them together represent the same agreement.

                                       5
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Supplemental
Indenture to be duly executed and attested, all as of the date and year first
above written.

                                       MOLL INDUSTRIES, INC.

                                       By:  /s/ James T. Sprouse
                                          -------------------------------
                                       Name:   James T. Sprouse
                                       Title:  Corporate Controller

(SEAL)

Attest: /s/ George T. Votis
       ---------------------------
Name:  George T. Votis
Title: Chairman and Chief Executive Officer

                                       STATE STREET BANK AND TRUST
                                       COMPANY, as Trustee

                                       By: /s/ Michael M. Hopkins
                                          -------------------------------
                                       Name:  Michael M. Hopkins
                                              ---------------------------
                                       Title: Vice President<PAGE>
                                                                    EXHIBIT 10.1

                             As of November 14, 2001

U.S. Plastic Lumber Corporation
2300 Glades Road
Suite 440 West
Boca Raton, Florida 33431
Attention: John Poling

         Re:  Forbearance Agreement

Ladies/Gentlemen:

         Please refer to the Credit Agreement dated as of June 30, 2000 (the
"CREDIT AGREEMENT") among U.S. Plastic Lumber Corporation (the "COMPANY"),
various financial institutions (the "BANKS") and Bank of America, N.A., as
administrative agent for the Banks (in such capacity, the "ADMINISTRATIVE
AGENT"). Capitalized terms used but not defined herein have the respective
meanings given thereto in the Credit Agreement.

         The Company has advised the Banks and the Administrative Agent that the
Company (i) was not in compliance with Sections 10.6.2, 10.6.3 and 10.6.4 of the
Credit Agreement for the Computation Period ended September 30, 2001, (ii) has
not been in compliance with Section 10.6.1 of the Credit Agreement since
September 30, 2001 (or earlier), (iii) will not be in compliance with Sections
10.6.2, 10.6.3, 10.6.4 and 10.6.7 of the Credit Agreement for the applicable
periods ending December 31, 2001, (iv) has failed to make required payments of
principal, of the additional amendment fee described in Section 6.9 of the
Waiver and Second Amendment to Credit Agreement dated March 12, 2001, and of
certain deferred interest, which payments were, in each case, due on September
30, 2001, (v) will not be able to make the principal payments due December 31,
2001 and (vi) is in default of Section 12.1.2 of the Credit Agreement (the
"KNOWN DEFAULTS"). By its signature below, the Company acknowledges that so long
as any Known Default (or any other Event of Default or any Unmatured Event of
Default) continues, the Banks have no obligation to make Loans and the Issuing
Bank has no obligation to issue Letters of Credit. The Company further
acknowledges that the Administrative Agent and the Banks currently have all
rights, powers and remedies, whether arising under any of the Loan Documents
and/or applicable law, available to them during the existence of an Event of
Default, including the right to accelerate the maturity of all Loans, to obtain
cash collateral for Letters of Credit and/or to terminate the Commitments (all
of the foregoing, the "RIGHTS AND REMEDIES").

         The Company has requested that the Administrative Agent and the Banks
continue to forbear from exercising the Rights and Remedies for a limited period
of time. The Administrative Agent and the Required Banks are willing to agree to
such forbearance subject to the terms and conditions of this letter agreement.
Accordingly, the Company, the Administrative Agent and the Required Banks agree
as follows:

<PAGE>

         1. AVAILABILITY OF CREDIT EXTENSIONS. During the period (the
"FORBEARANCE PERIOD") from the date hereof to the date on which the Forbearance
Period terminates pursuant to SECTION 4, (a) the Banks will continue to make
Loans to, and the Issuing Bank will continue to issue Letters of Credit for the
account of, the Company; and (b) the Administrative Agent and the Banks will not
exercise the Rights and Remedies with respect to the Known Defaults.

         2. FORBEARANCE FEE. The Company agrees to pay the Administrative Agent
for the benefit of the Banks a forbearance fee of $100,000 on the date on which
the Forbearance Period terminates.

         3. EFFECTIVENESS. This letter agreement shall become effective on the
date on which (a) the Administrative Agent shall have received counterparts
hereof signed by the Company and the Required Banks and (b) the Company shall
have paid all fees and charges of counsel to the Administrative Agent, to the
extent at least 45 days prior to the signing hereof billed.

         4. TERMINATION OF FORBEARANCE PERIOD. The Forbearance Period shall
terminate on (a) February 28, 2002 or (b) such earlier date specified by the
Required Banks in a written notice to the Company at any time a Forbearance
Default exists. Upon termination of the Forbearance Period, the forbearance set
forth herein shall automatically terminate, all amounts referred to in CLAUSE
(IV) of the second paragraph of this letter shall become immediately due and
payable, the obligation of the Administrative Agent and the Banks to forebear
from the exercise of any of the Rights and Remedies shall immediately terminate,
and the Administrative Agent and the Banks shall immediately be entitled (but
not obligated) without any further action or notice to exercise any or all of
the Rights and Remedies.

         5. FORBEARANCE DEFAULTS. Each of the following shall constitute a
"FORBEARANCE DEFAULT":

                  (a) The Company shall fail to comply with or to perform any
provision of this letter agreement.

                  (b) Any Event of Default, other than the Known Defaults, shall
occur and be continuing.

                  (c) The Company shall fail to enter into a definitive
agreement for the sale of certain assets on or prior to December 31, 2001, the
Company shall fail to provide the Administrative Agent with current information
regarding the status of its efforts to sell such assets upon receipt of any
request from the Administrative Agent for such information, the prospective
purchaser of such assets shall elect not to proceed with discussions regarding
the sale of such assets or shall change the terms of its purchase proposal in a
manner which is adverse to the Company, or, in the reasonable judgment of the
Required Banks, either the Company is not making sufficient progress towards
consummating a sale of such assets or such a sale is not likely to be available
to the Company under then existing conditions (including, without limitation,
current market conditions).

                  (d) The bonding capacity of the Company and its Subsidiaries
shall terminate.

                                       2
<PAGE>

         6. NO OTHER CHANGE TO THE LOAN DOCUMENTS; PRESERVATION OF RIGHTS.
Except to the extent expressly set forth herein, (a) all of the terms and
conditions of the Credit Agreement and the other Loan Documents shall remain
unchanged and in full force and effect, (b) this letter agreement shall not be
deemed a waiver or modification by the Administrative Agent or any Bank of any
term or provision of, or of any default under, the Credit Agreement or any other
Loan Document, and (c) the Administrative Agent and the Banks hereby fully
preserve all their rights, powers and remedies against the Company and each
Guarantor. In addition, subject to the forbearance set forth in clause (b) of
Section 1, nothing contained herein shall be deemed to be a waiver or
abandonment of any Event of Default (whether presently or subsequently existing,
including, without limitation, any of the Known Defaults) or of any right, power
or remedy available to the Administrative Agent or the Banks under the Loan
Documents or applicable law, each of which rights, powers and remedies is hereby
specifically and expressly reserved, including, without limitation, the right to
seek judgment against the Company or any Guarantor, to foreclose any interest in
any collateral in which the Administrative Agent has a security interest or
other lien, or to take any other action permitted under the Loan Documents
and/or applicable law.

         7. COUNTERPARTS. This letter agreement may be executed in any number of
counterparts and by the different parties on separate counterparts, and each
such counterpart shall be deemed to be an original but all such counterparts
shall together constitute one and the same agreement.

         8. EXPENSES. The Company agrees to pay the reasonable costs and
expenses of the Administrative Agent (including the reasonable fees and charge
of counsel to the Administrative Agent) in connection with the preparation,
execution and delivery of this letter agreement.

         9. GOVERNING LAW. This letter agreement shall be a contract made under
and governed by the laws of the State of Illinois applicable to contracts made
and to be performed entirely within such State.

         10. REPRESENTATIONS. The Company hereby represents and warrants to the
Administrative Agent and the Banks that the execution, delivery, and performance
of this letter agreement is within the Company's powers, has been duly
authorized, does not conflict with any of the Company's organizational
documents, and does not conflict with any law, agreement or obligation by which
the Company is bound.

         11. SUCCESSORS AND ASSIGNS. This letter agreement is binding upon the
Company and its successors and assigns and shall inure to the benefit of the
Administrative Agent, the Banks and their respective successors and assigns.

         12. HEADINGS. Headings used in this letter agreement are for
convenience of reference only and shall not affect the construction of this
letter agreement.

         13. WAIVER OF JURY TRIAL. THE PARTIES HEREBY CONFIRM THAT THE WAIVER OF
JURY TRIAL SET FORTH IN SECTION 14.16 OF THE CREDIT AGREEMENT IS APPLICABLE TO
THIS LETTER AGREEMENT PURSUANT TO SUCH SECTION 14.16.

                                       3
<PAGE>

         Please acknowledge the foregoing by signing a counterpart of this
letter agreement and returning it to the Administrative Agent.

                           BANK OF AMERICA, N.A., as Administrative Agent

                           By:  /s/ KRISTINE D. HYDE
                              -------------------------------------------------
                                Title: VICE PRESIDENT

                           BANK OF AMERICA, N.A., as Issuing Bank, Swing Line
                           Bank and a Bank

                           By:   /s/ THOMAS GZERWINSKI
                              -------------------------------------------------
                                Title: VICE PRESIDENT

                           LASALLE BANK NATIONAL ASSOCIATION

                           By:
                              -------------------------------------------------
                                Title:
                                      -----------------------------------------

                           UNION PLANTERS BANK

                           By:  /s/ EDWARD F. HOLDEN
                              -------------------------------------------------
                                Title: EXECUTIVE VICE PRESIDENT

ACKNOWLEDGED AND AGREED as of November 14, 2001:

U.S. PLASTIC LUMBER CORPORATION

By:   /s/ JOHN POLING
---------------------------------------
      Title: CHIEF FINANCIAL OFFICER

                                       4

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00033-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00033-of-00352.parquet"}]]