FIRST SUPPLEMENTAL INDENTURE


     FIRST SUPPLEMENTAL INDENTURE (this "Supplemental Indenture"), dated as
of March 29, 2004 by and among Noveon, Inc., (formerly the PMD Group Inc.),
a  Delaware  corporation  (the  "Company"),  the  guarantors  set  forth on
Schedule  A hereto,  (the  "Guarantors")  and Wells  Fargo  Bank,  National
Association, as successor by merger to Wells Fargo Bank Minnesota, National
Association,  as  trustee  under  the  indenture  referred  to  below  (the
"Trustee").

                           W I T N E S S E T H :

     WHEREAS,  the  Company,  the  Guarantors  and the  Trustee  heretofore
executed and delivered to the Trustee,  an Indenture,  dated as of February
28, 2001 (the  "Indenture"),  providing  for the  issuance of an  aggregate
principal amount of up to $275,000,00 of 11% Senior  Subordinated Notes due
2011 (the "Securities");

     WHEREAS,  the  Company,  the  Guarantors  and the  Trustee  intend  to
reconcile  an  inconsistency  between  the  "Description  of  Notes" in the
Company's  Registration  Statement  on Form S-4  (file no.  333-61812),  as
amended,   registering  the  Securities,   and  Section  4.07(iii)  of  the
Indenture;

     WHEREAS,  in accordance  with Section  9.01(a) of the Indenture,  when
authorized by a resolution  of the Board of Directors,  the Company and the
Guarantors may amend or supplement the Indenture without the consent of any
Holder of a Note;

     WHEREAS,  this Supplemental  Indenture has been duly authorized by all
necessary corporate action on the part of the Company and the Guarantors.

     NOW,  THEREFORE,  in consideration for the premises and for other good
and valuable  consideration,  the receipt of which is hereby  acknowledged,
the Company, the Guarantors and the Trustee mutually covenant and agree for
the equal and ratable benefit of the Holders as follows:

     1. Capitalized Terms.  Capitalized terms used herein but not otherwise
defined have the meanings ascribed thereto in the Indenture.

     2. Amendments.  Subject to paragraph 3 hereof, the Indenture is hereby
amended in the following respect:

     By  deleting  in its  entirety  the  following  provision  of  Section
4.07(iii):

          (iii) such Restricted Payment, together with the aggregate amount
          of all other  Restricted  Payments  made by the  Company  and its
          Restricted   Subsidiaries   after  the  date  of  this  Indenture
          (excluding  Restricted  Payments permitted by clauses (a) (to the
          extent that the  declaration of any dividend  referred to therein
          reduces  amounts  available for Restricted  Payments  pursuant to
          this clause  (iii)),  (b) through (i), (k) through (o) and (q) of
          the next  succeeding  paragraph),  is less than the sum,  without
          duplication, of:

     and replacing it with the following:

          (iii) such Restricted Payment, together with the aggregate amount
          of all other  Restricted  Payments  made by the  Company  and its
          Restricted   Subsidiaries   after  the  date  of  this  Indenture
          (excluding  Restricted  Payments permitted by clauses (a) (to the
          extent that the  declaration of any dividend  referred to therein
          reduces  amounts  available for Restricted  Payments  pursuant to
          this  clause  (iii)),  (b) through  (i),  (k) through (o) and (q)
          through (s) of the next succeeding  paragraph),  is less than the
          sum, without duplication, of:

     3. Effect of Supplemental  Indenture.  Upon the execution and delivery
of this Supplemental  Indenture by the Company,  each of the Guarantors 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   Securities   heretofore  or  hereafter
authenticated and delivered under the Indenture shall be bound hereby.

     4. Indenture Remains in Full Force and Effect.  Except as supplemented
hereby,  all  provisions  in the  Indenture  shall remain in full force and
effect.

     5.  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.

     6.  Confirmation  and  Preservation  of  Indenture.  The  Indenture as
supplemented by this  Supplemental  Indenture is in all respects  confirmed
and preserved.

     7.  Conflict  with the 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 ("TIA") that is required under
the TIA to be a part  of and  govern  any  provision  of this  Supplemental
Indenture, the provision of the TIA shall control. If any provision of this
Supplemental  Indenture  modifies or excludes any provision of the TIA that
may be so modified or excluded, the provision of the TIA shall be deemed to
apply  to  the  Indenture  as  so  modified  or  to  be  excluded  by  this
Supplemental Indenture, as the case may be.

     8. 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.

     9. Benefits of Supplemental  Indenture.  Nothing in this  Supplemental
Indenture or the Securities,  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 Securities,  any benefit of any legal
or equitable right, remedy or claim under the Indenture,  this Supplemental
Indenture or the Securities.

     10.  Successors.  All  agreements  of  the  Company  and  each  of the
Guarantors  in this  Supplemental  Indenture  shall bind  their  respective
successors.  All agreements of the Trustee in this  Supplemental  Indenture
shall bind its successors.

     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 and the Securities  relating to
the conduct or  affecting  the  liability or  affording  protection  to the
Trustee, whether or not elsewhere herein so provided.

     12. Governing Law. This  Supplemental  Indenture shall be governed by,
and  construed in  accordance  with,  the laws of the State of New York but
without  giving effect to applicable  principles of conflicts of law to the
extent that the  application of the laws of another  jurisdiction  would be
required thereby.

     13. Multiple  Originals.  The parties may sign any number of copies of
this Supplemental Indenture, each of which shall be deemed an original, but
all of which together shall constitute one and the same instrument.

     14. Headings. The Section headings herein are inserted for convenience
of  reference  only,  are not  intended to be  considered a part hereof and
shall not modify or restrict any of the terms or provisions hereof.

     15. The Trustee.  The Trustee shall not be  responsible  in any manner
for or in respect  of the  validity  or  sufficiency  of this  Supplemental
Indenture or for or in respect of the  recitals  contained  herein,  all of
which are made by the Company and each of the Guarantors.




                [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]







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

                               NOVEON, INC.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Vice President and Treasurer




                               WELLS FARGO BANK, NATIONAL ASSOCIATION,
                               as Trustee



                               By: /s/ Jane Y. Schweiger
                                  -----------------------------------
                                       Name:  Jane Y. Schweiger
                                       Title: Vice President




                               NOVEON CHINA INC.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               NOVEON DIAMALT, INC.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               NOVEON FCC, INC.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               NOVEON HILTON DAVIS INC.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               NOVEON KALAMA, INC.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               NOVEON TEXTILE CHEMICALS, INC.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               FCC ACQUISITION CORPORATION



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               NOVEON HOLDING CORPORATION



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               PERFORMANCE MATERIALS I INC.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer




                               PERFORMANCE MATERIALS II LLC
                               By: Noveon, Inc., its Sole Member



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Vice President and Treasurer




                               NOVEON IP HOLDINGS CORP.



                               By: /s/ Sean M. Stack
                                  -----------------------------------
                                       Name:  Sean M. Stack
                                       Title: Treasurer









                                                                 SCHEDULE A

                                 GUARANTORS

Noveon China Inc.
Noveon Diamalt, Inc.
Noveon FCC, Inc.
Noveon Hilton Davis Inc.
Noveon Kalama, Inc.
Noveon Textile Chemicals, Inc.
FCC Acquisition Corporation
Noveon Holding Corporation
Performance Materials I Inc.
Performance Materials II LLC
Noveon IP Holdings Corp.