SECOND AMENDMENT
TO FIRST LIEN
CREDIT AND GUARANTY AGREEMENT

THIS
SECOND AMENDMENT TO FIRST LIEN CREDIT AND GUARANTY AGREEMENT dated as of July
__, 2006 (the Amendment) is entered into among GENTEK HOLDING, LLC, a
Delaware limited liability company (the Borrower), GENTEK INC., a
Delaware corporation (Holdings), certain Subsidiaries of the Borrower,
as Guarantors, the Lenders party hereto, Bank of America, N.A. (BOFA),
as Collateral Agent and Co-Administrative Agent and General Electric Capital
Corporation, as Co-Administrative Agent. All capitalized terms used herein and
not otherwise defined herein shall have the meanings given to such terms in the
Credit Agreement (as defined below).

RECITALS

WHEREAS,
the Borrower, the Guarantors, the Lenders, Goldman Sachs Credit Partners L.P.,
as Joint Lead Arranger, Sole Bookrunner and Syndication Agent, Banc of America
Securities LLC, as Joint Lead Arranger, General Electric Capital Corporation,
as Co-Administrative Agent and Bank of America, N.A., as Collateral Agent and
Co-Administrative Agent entered into that certain First Lien Credit and
Guaranty Agreement dated as of February 28, 2005 (as amended or modified from
time to time, the Credit Agreement);

WHEREAS,
the Borrower has requested that the Lenders amend the Credit Agreement as set
forth below;

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

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| | 1.                                                                                                                                                           | Amendments. The Credit Agreement
  is hereby amended as follows:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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| | (a)     The following definition is hereby added to Section
  1.1 of the Credit Agreement in the appropriate alphabetical order and shall
  read as follows:
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| |                                                                                                                                                              | Second Amendment Effective Date means
  July __, 2006.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
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| | (b)     The following language is hereby added at the end of
  Section 2.14(c) of the Credit Agreement to read as follows:                                  
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| |                                                                                                                                                              | Notwithstanding the foregoing,
  (A) the Borrower shall have ninety (90) days from the date of receipt by
  Holdings of any Cash proceeds from a capital contribution, or the issuance of
  Capital Stock, to use such Cash proceeds as consideration to make a Permitted
  Acquisition and (B) the Borrower may use any Cash proceeds received by
  Holdings from a capital contribution, or the issuance of Capital Stock, to
  immediately repay a Revolving Loan borrowing and/or replenish any Cash used
  to fund in whole or in part a Permitted Acquisition so long as such Cash
  proceeds are received by Holdings from a capital contribution, or the
  issuance of Capital Stock, within ninety (90) days of the date of the
  consummation of such Permitted Acquisition. If such Cash proceeds are not
  used to (C) make a Permitted Acquisition within ninety (90) days of receipt
  by Holdings or (D) immediately repay a Revolving Loan borrowing and/or
  replenish any Cash used to fund in whole or in part a Permitted Acquisition
  within ninety (90) days of the date of the consummation of such Permitted
  Acquisition, such Cash proceeds shall be

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|                                                                                                                              |                                                                                                                                                                                                                                                                                                                                                                                             | used by the Borrower to prepay
  the Loans and/or the Revolving Commitments shall be permanently reduced as
  set forth above.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|                                                                                                                              |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |                                                                               
|                                                                                                                              |                                                                                                                                                                                                                                                                                                                                                                                             | (c)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Section 6.9(d) of the Credit Agreement is hereby amended
  to read as follows:
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|                                                                                                                              |                                                                                                                                                                                                                                                                                                                                                                                             | (d)
  Permitted Acquisitions, the non-equity consideration for which constitutes
  (i) less than $40,000,000 in the aggregate in any Fiscal Year; and (ii) less
  than $100,000,000 in the aggregate from the Second Amendment Effective Date
  to the date of determination; provided, that the non-equity consideration of
  any Permitted Acquisition may exceed the limitations set forth in clauses (i)
  and (ii) of this Section 6.9, if the Borrower delivers a revised Compliance
  Certificate demonstrating that the Leverage Ratio calculated on a pro forma
  basis in accordance with Section 6.9(d) after giving effect to such Permitted
  Acquisition (as if such Permitted Acquisition had occurred in the beginning
  of the period set forth in such Compliance Certificate) is equal to or less
  than (i) 4.00 to 1:00 for Fiscal Year 2005, (ii) 3.25 to 1.00 for Fiscal Year
  2006, (iii) 2.75 to 1.00 for Fiscal Year 2007 and (iv) 2.25 to 1.00 for
  Fiscal Year 2008 (it being understood and agreed that (x) any Cash proceeds
  received by Holdings from a capital contribution, or the issuance of Capital
  Stock, and used as consideration to make a Permitted Acquisition within 90
  days of receipt of such Cash proceeds shall be considered equity
  consideration (and not cash consideration counting toward the baskets above)
  for purposes of this Section 6.9(d) and (y) any proceeds of a Revolving Loan
  borrowing and/or Cash used to fund in whole or in part a Permitted
  Acquisition shall be considered equity consideration (and not cash
  consideration counting toward the baskets above) for purposes of this Section
  6.9(d) so long as such Revolving Loan and/or Cash is immediately repaid or
  replenished in full with Cash proceeds received by Holdings from a capital
  contribution, or the issuance of Capital Stock within 90 days of the date of
  the consummation of such Permitted Acquisition);
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|2.      
Conditions Precedent. This
  Amendment shall be effective upon satisfaction of the following conditions
  precedent:
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|                                                                                                                              | (a)     Receipt by BOFA of counterparts of this Amendment
  duly executed by the Borrower, the Guarantors, the Requisite Lenders and the
  Co-Administrative Agents; and                                                                                                                                                                                                                   
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|                                                                                                                              | (b)     
Receipt by BOFA of a fully executed copy of the
  Second Amendment to Second Lien Credit and Guaranty Agreement.                                                                                                                                                                                                                                                                  
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|                                                                                                                              | 3.                                                                                                                                                                                                                                                                                                                                                                                          | Miscellaneous.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
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|                                                                                                                              | (a)     
The Credit Agreement, and the obligations of the
  Credit Parties thereunder and under the other Credit Documents, are hereby
  ratified and confirmed and shall remain in full force and effect according to
  their terms.                                                                                                                                                      
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|                                                                                                                              | (b)     
Each Guarantor (i)
  acknowledges and consents to all of the terms and conditions of this
  Amendment, (ii) affirms all of its obligations under the Credit Documents and
  (iii) agrees that this Amendment and all documents executed in connection herewith
  do not operate to reduce or discharge its obligations under the Credit
  Agreement or the other Credit Documents.
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|                                                                                                                              | (c)     
The Borrower and the Guarantors hereby represent and
  warrant as follows:                                                                                                                                                                                                                                                                                                        

2

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| |                                                                                                                                                                                                                                                                                                                                                                                                            | (i)      Each Credit Party has taken all necessary action to
  authorize the execution, delivery and performance of this Amendment.                                                                                                                                                                                                                                                                                        
| |                                                                                                                                                                                                                                                                                                                                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                                             |  | 
| |                                                                                                                                                                                                                                                                                                                                                                                                            | (ii)     This Amendment has been duly executed and delivered
  by the Credit Parties and constitutes each of the Credit Parties legal,
  valid and binding obligations, enforceable in accordance with its terms,
  except as such enforceability may be limited by Debtor Relief Laws and
  general principles of equity (regardless of whether such enforceability is
  considered in a proceeding in equity or at law).
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| |                                                                                                                                                                                                                                                                                                                                                                                                            | (iii)   
No consent, approval, authorization or order of, or
  filing, registration or qualification with, any court or governmental
  authority or third party is required in connection with the execution,
  delivery or performance by any Credit Party of this Amendment.                                                                                                                                             
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| | (d)     
This Amendment may be executed in any number of
  counterparts, each of which when so executed and delivered shall be an
  original, but all of which shall constitute one and the same instrument.
  Delivery of an executed counterpart of this Amendment by telecopy shall be
  effective as an original and shall constitute a representation that an
  executed original shall be delivered.
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| | (e)     
THIS
  AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE
  GOVERNED BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE
  STATE OF NEW YORK.                                                                                                                                                                                                            

3

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Each
of the parties hereto has caused a counterpart of this Amendment to be duly
executed and delivered as of the date first above written.

|            |                                               | 
|----------- | --------------------------------------------- | 
|BORROWER:   | GENTEK HOLDING, LLC                          
|            |                                              
|            | By:                                           | 
|            |                                               | 
|            | Name:                                        
|            | Title:                                       
|            |                                              
|GUARANTORS: | GENTEK INC.                                  
|            |                                              
|            | By:                                           | 
|            |                                               | 
|            | Name:                                        
|            | Title:                                       
|            |                                              
|            | BALCRANK PRODUCTS INC.                       
|            | BIG T-2 COMPANY LLC                          
|            | BINDERLINE DRAFTLINE, INC.                   
|            | DEFIANCE, INC.                               
|            | DEFIANCE KINEMATICS INC.                     
|            | DEFIANCE PRECISION PRODUCTS, INC.            
|            | DEFIANCE PRECISION PRODUCTS MANAGEMENT LLC   
|            | DEFIANCE PRECISION PRODUCTS MANUFACTURING LLC
|            | DEFIANCE TESTING & ENGINEERING SERVICES, INC.
|            | FINI ENTERPRISE, INC.                        
|            | GENERAL CHEMICAL LLC                         
|            | GENERAL CHEMICAL PERFORMANCE PRODUCTS LLC    
|            | GENERAL CHEMICAL WEST LLC                    
|            | GENTEK TECHNOLOGIES MARKETING INC.           
|            | HY-FORM PRODUCTS, INC.                       
|            | NOMA CORPORATION                             
|            | NOMA DELAWARE INC.                           
|            | NOMA HOLDING INC.                            
|            | NOMA O.P., INC.                              
|            | NOMA TECHNOLOGIES LIMITED PARTNERSHIP        
|            | By:
  Noma Holding Inc., its General Partner 
|            | PRINTING DEVELOPMENTS, INC.                  
|            | REHEIS, INC.                                 
|            | TOLEDO TECHNOLOGIES INC.                     
|            | TOLEDO TECHNOLOGIES MANAGEMENT LLC           
|            | TOLEDO TECHNOLOGIES MANUFACTURING LLC        
|            | VIGILANT NETWORKS LLC                        
|            |                                              
|            | By:                                           | 
|            |                                               | 
|            | Name:                                        
|            | Title:                                       

GENTEK HOLDING,
LLC
SECOND AMENDMENT TO
FIRST LIEN CREDIT AND GUARANTY AGREEMENT

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| |                                                                                 | 
| | ------------------------------------------------------------------------------- | 
| | BANK OF AMERICA, N.A., as Collateral Agent and
  Co-Administrative Agent       
| |                                                                                 | 
| | By:                                                                             | 
| |                                                                                 | 
| | Name:                                                                          
| | Title:                                                                         
| |                                                                                
| | BANK OF AMERICA, N.A., as a Lender                                             
| |                                                                                
| | By:                                                                             | 
| |                                                                                 | 
| | Name:                                                                          
| | Title:                                                                         
| |                                                                                
| | GENERAL ELECTRIC CAPITAL CORPORATION, as
  Co-Administrative Agent and a Lender
| |                                                                                
| | By:                                                                             | 
| |                                                                                 | 
| | Name:                                                                          
| | Title:                                                                         

GENTEK HOLDING,
LLC
SECOND AMENDMENT TO
FIRST LIEN CREDIT AND GUARANTY AGREEMENT

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|         |                                    | 
|-------- | ---------------------------------- | 
|LENDERS: | [Insert name of applicable Lender]
|         |                                   
|         | By:                                | 
|         |                                    | 
|         | Name:                             
|         | Title:                            

GENTEK HOLDING,
LLC
SECOND AMENDMENT TO
FIRST LIEN CREDIT AND GUARANTY AGREEMENT

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