Polyurethane Catalyst PC-5: Impact on Foam Rise Profile and Cure Characteristics Ⅰ. Introduction Polyurethane (PU) foams are versatile materials widely used in various applications, including insulation, cushioning, and automotive components. The formation of PU foam involves a complex reaction between polyols and isocyanates, catalyzed by various substances, including tertiary amine catalysts and organometallic compounds. Polyurethane...