SECOND AMENDMENT TO SECOND LIEN
CREDIT AND GUARANTY AGREEMENT

THIS
SECOND AMENDMENT TO SECOND 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, Goldman Sachs Credit Partners L.P. (GSCP),
as Administrative Agent and Collateral Agent and Bank of America, N.A. (BOFA),
as Documentation 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, Syndication Agent, Administrative
Agent and Collateral Agent, Banc of America Securities LLC, as Joint Lead
Arranger and BOFA, as Documentation Agent entered into that certain Second 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:

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:
| |                                                                                                                                                         
| | Second
  Amendment Effective Date means July __, 2006.                                                                                                
| |                                                                                                                                                         
| | (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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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| |  | (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 $50,000,000 in the aggregate in any Fiscal Year; and (ii) less
  than $125,000,000 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);

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, the Administrative Agent and
  the Documentation Agent; and
| |                                                                                                                                                                                            
| | (b)
  Receipt by BOFA of a fully executed copy of the Second Amendment to First
  Lien Credit and Guaranty Agreement.                                                                      

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.                                                                                                                                                        
| |                                                                                                                                                                                                                                                                                                                                                                                         
| | (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.
| |                                                                                                                                                                                                                                                                                                                                                                                         
| | (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).
| |  |                                                                                                                                                                                                                                                                                                                                                                                                                          
| |  | (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.
| |                                                                                                                                                                                                                                                                                                                                                                                                      
| | (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                        
|SECOND LIEN CREDIT AND
  GUARANTY AGREEMENT

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| |                                           | 
| | ----------------------------------------- | 
| | GOLDMAN SACHS CREDIT PARTNERS, L.P., as  
| | Administrative Agent and Collateral Agent
| |                                           | 
| | By:                                       | 
| |                                           | 
| | Name:                                    
| | Title:                                   
| |                                          
| | BANK OF AMERICA, N.A., as Documentation  
| | Agent                                    
| |                                          
| | By:                                       | 
| |                                           | 
| | Name:                                    
| | Title:                                   
| |                                          
| | BANK OF AMERICA, N.A., as a Lender       
| |                                           | 
| | By:                                       | 
| |                                           | 
| | Name:                                    
| | Title:                                   

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

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

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

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