K-KAT XK-661

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K-KAT XK-661 is a novel non-tin catalyst recommended for 2-component solvent based and 2-component waterborne polyurethanes, as well as, for 1-component blocked isocyanate systems.



ADVANTAGES:
Easy to use, add to the polyol component
Excellent pot life for 2K PU systems
Good cure time characteristics
Excellent hydrolytic stability
Excellent gloss retention
Excellent exterior durability
Does not contain 2-EHA
 



TYPICAL PROPERTIES:
Appearance:                                   Clear, light yellow liquid
% Active:                                         80
Solvent:                                           n-Butyl acetate
pH:                                                  8.43
Flash Point, Setaflash:                   38.9°C (102°F)
Specific Gravity:                             1.06
 



SOLUBILITY:
K-KAT XK-661 is soluble in alcohols, ketones, esters and aromatic hydrocarbons.
K-KAT XK-661 is insoluble in water, but could be dispersed in water with co-solvent.
 



APPLICATIONS:
K-KAT XK-661 can be used in ambient cured or force dried WB or SB 2-component polyurethane systems. It can also be used in 1-component thermally cured blocked isocyanate systems.
 



TYPICAL USAGE LEVELS:
0.25 - 1.0% as supplied on total resin solids. 

 
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