Reaxis® C221

Dibutyltin carboxylate. Acts as an organo-tin catalyst. It is stable and has good heat stability. Possesses an incompatibility with strong oxidizing agents, strong acids and strong bases. Used mainly for polyurethane polymers. Can be used in catalysis of isocyanate/alcohol reactions, silicone condensations (e.g. RTV resins), silane modified polyethylenes. It is also used in esterification and transesterification reactions. Recommended to be used at concentrations ranging from 0.01-1.0 wt% at 160-260 °C.