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K-KAT XK-639

 
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K-KAT XK-639 is a new non-tin catalyst recommended for solvent based or solvent free 2-component polyurethanes and 1-component blocked isocyanate systems.


ADVANTAGES:
Good pot life in 2K PU systems
            Good cure time characteristics
            Non-yellowing
            Excellent gloss retention
 


TYPICAL PROPERTIES:
Appearance:                                   Light yellow liquid
% Active (in isopropanol):               50.0
Specific gravity, 25°C:                     0.91
Weight per gallon, 25°C:                 7.6
 


SOLUBILITY:
            K-KAT XK-639 is soluble in ketones, esters, alcohols and aromatic hydrocarbons. It is insoluble in water.
 


APPLICATIONS:
K-KAT XK-639 can be used in ambient cured or force dried 2-component solvent based polyurethane systems. It can also be used in thermal cured 1-component blocked isocyanate systems.

 



TYPICAL USAGE LEVELS:
0.1 – 0.5% as supplied on total resin solids for 2-component polyurethane systems.
0.5 – 1.5% as supplied on total resin solids for blocked isocyanate systems. 

 
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