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K-KAT 5218

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K-KAT 5218 is an aluminum chelate complex catalyst for 2-component urethane coatings. It is effective for both ambient cure and baked systems. K-KAT 5218 is supplied in a reactive diluent for high solids applications.Provides superior pot life extension with the addition of 2,4-pentanedione.



ADVANTAGES:
Fast tack free time
Excellent viscosity stability/pot life
Excellent exterior durability
Effective with a variety of isocyanates and polyols
Superior synergy with pot life extenders, such as 2,4-pentanedione
 



TYPICAL PROPERTIES:
Appearance:                             Clear to slightly hazy, amber liquid
% Active (metal chelate):         65%
Specific gravity, 25°C:              1.1 g/ml    
 



SOLUBILITY:
Soluble in alcohols, glycol ethers, esters, ketones and aromatic hydrocarbons. If 2,4-pentanedione is used as a pot life extender, it should be added to the polyol component then followed by the catalyst. It should not be pre-mixed with the K-KAT 5218.
 



APPLICATIONS:
2-Component urethane coatings
Automotive topcoats
High performance maintenance coatings
Aerospace coatings
Coatings for structural plastics
 



TYPICAL USAGE LEVELS:
1.0 - 2.0% as supplied by weight on total resin solids. For better pot life 2,4 -pentanedione can be added to paint formulations at a level of 1 - 1.5% weight on total resins solids.

 
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