2-Propylimidazole as a Reactive Diluent and Catalyst in Waterborne Epoxy Formulations: A Comprehensive Review Abstract: Waterborne epoxy resin systems are gaining prominence as environmentally benign alternatives to solvent-borne coatings. This article comprehensively reviews the application of 2-propylimidazole (2-PI) in waterborne epoxy formulations, focusing on its dual role as a reactive diluent and a catalyst for...