FASCAT® 4202

Dibutyltin dilaurate. Acts as a crosslinking catalyst. It is insoluble in water and most common organic solvents. Is stable to hydrolysis but will hydrolyze in the presence of aqueous caustic at room temperature. It drives the addition of alcohols with isocyanates to accelerate and complete the formation of urethanes. Used in various urethane cross-linking reactions and silanol condensation reactions. It can be used as a gelling catalyst in the manufacture of polyurethane coatings. FASCAT 4202 catalyst, absorbed on silica, is used to cross-link urethane powder coatings for exterior applications. Also used to crosslink 2K urethane systems for automotive, industrial, and refinish coatings.