Organometallic Catalysts in Polyurethane Coatings: A Comparative Analysis of Bismuth, Zinc, and Zirconium Compounds Abstract: Polyurethane (PU) coatings are widely employed across diverse industries due to their exceptional mechanical properties, chemical resistance, and versatility. The efficient formation of polyurethane linkages, crucial for achieving desired coating characteristics, often necessitates the use of catalysts. While traditional amine-based...