Polyurethane Catalyst PC-5: Compatibility and Synergistic Effects with Amine and Tin Co-Catalysts Introduction Polyurethane (PU) materials are ubiquitous in modern society, finding applications in diverse fields such as coatings, adhesives, sealants, elastomers, and foams. The versatility of PUs stems from the wide range of available isocyanates and polyols, coupled with the judicious selection of catalysts...