| Material Name: 
      				
  				PRESTO BLACK BST4 
                      
  			    
      					Description: 
      				
  						Brush-on Blackener 
  					
  						Details: 
  					
  						Is a liquid brush-on blackener for all iron and non-stainless steels. Applied at room temperature by swab-on or spray techniques, the BST4 reacts quickly and produces a non-dimensional black finish in 30-90 seconds. The finish can be sealed with a protective oil and is suitable for use on precision tooling and machine components. 
  					
  						Status: 
  					
  						In-stock |  |  |  | 
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