Polyurethane Heat-Sensitive Catalyst in One-Component Polyurethane Foam: A Comprehensive Review Abstract: One-component polyurethane (OCF) foams are widely utilized in various applications, including building insulation, sealing, and gap filling, due to their ease of application and rapid curing. A critical component in OCF formulations is the catalyst, which facilitates the reaction between isocyanates and polyols. Heat-sensitive...