Polyurethane Catalyst PC-77: A Key Component in Sustainable Eco-Friendly Insulation Systems Abstract: Polyurethane (PU) insulation systems are widely utilized for their superior thermal performance and versatility. The development of sustainable and eco-friendly PU systems necessitates the exploration of advanced catalysts. This article focuses on Polyurethane Catalyst PC-77, a tertiary amine catalyst commonly employed in the...