Transcription of K-KAT® - King Industries
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K-KAT® - King Industries
K- K AT Guide to Tin-Free CatalystsFor Urethane CoatingsSPECIALTY CHEMICALS K- K AT catalysts are metal compounds designed for accelerating the crosslinking reaction of isocyanates with polyols. In addition to replacing tin catalysts, K-KAT catalysts o er a wide range of performance advantages. Bene ts include an improved pot life/cure time relationship, less gassing in the presence of water (humidity), improved cold temperature cure response and catalysis of secondary hydroxyl groups, and excellent lm properties. K- K AT Tin-Free Catalysts - Next Generation ResponsibilityTin AlternativesBismuth CarboxylatesRecommended for 2K SB and1K SB blocked isocyanatepolyurethane coatings andfor silane functional systems Properties comparable to tin catalysts Excellent exterior durability Non-yellowing Excellent gloss retention Catalyzes secondary hydroxyl groupsZirconium ChelatesRecommended for 2K SB, WBand high solids polyurethanecoatings and elastomers Fast cure and selective catalysis (less gassing) Effective in cold and humid conditions Excellent exterior durability Good pot life with 2,4-PentanedioneAluminum ChelateR
XK-661 E˜ective in 2K WB and moisture cure coatings. Similar performance to tin. XK-635 Very e˜ective in solventborne and solventless 2K urethanes and 1K blocked isocyanate systems. Good with MEKO Blocked NCO.
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