TIB KAT® 321 by TIB Chemicals is dibutyltin mercaptide catalyst. It is also used as a PVC stabilizer. It has higher hydrolytic stability than comparable organotin carboxylates. TIB KAT® 321 is used in polyurethane based coatings. It shows lower catalytic reactivity in polyurethane systems as compared to DOTL (TIB KAT® 218), resulting in a longer pot life, latent reaction, and fast curing time. TIB KAT® 321 has a shelf life of 1 year.
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TIB KAT® 321 properties
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