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 cata

K-KAT® XK-672 is an e˜ective catalyst for the reaction of isocyanates and polyols for the production of urethane coatings. It is a proprietary organometallic complex speci˚cally designed to replace tin. It also meets FDA 21 CFR 175.300 requirements.

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