Application of 2-Isopropylimidazole in Epoxy Tooling Resins for Rapid Prototyping Abstract: This article explores the application of 2-isopropylimidazole (2-IPI) as a curing agent and accelerator in epoxy tooling resins for rapid prototyping. Epoxy resins are widely used in tooling applications due to their excellent mechanical properties, dimensional stability, and chemical resistance. However, conventional epoxy curing...