K-KAT® XK-640 

K-KAT® XK-640 is an adaptable bismuth carboxylate stimulant that is made for blocked isocyanate and two component urethane coatings. It offers good exterior durability, good gloss retention, and similar properties to standard tin catalysts without the environmental drawbacks. K-KAT® XK-640 is a designed to provide improved hydrolytic stability compared to other bismuth carboxylate catalysts. This product is soluble in glycol ethers, aliphatics, and aromatics, has partial solubility in alcohols and esters, and is insoluble in water. It appears as a clear, amber liquid, is 18% metal, and can be applied in ambient, force dry and bake systems, 2K and blocked isocyanate coatings, and in the production of urethane coatings.


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King Industries, Inc. offers a broad range of products used in formulating high performance industrial and automotive, aerospace, and ballistic grade additives for coatings. King Industries' core technologies consist of catalysts, corrosion inhibitors, dispersants, resin modifiers, rheology, and surface control.


King Industries, Inc.

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