2-Phenylimidazole as a Hardener Accelerator in Structural Epoxy Adhesives for Automotive Applications Abstract: Structural epoxy adhesives are increasingly utilized in the automotive industry due to their superior strength, durability, and ability to bond dissimilar materials. This article investigates the application of 2-phenylimidazole (2-PI) as a hardener accelerator in structural epoxy adhesives tailored for automotive applications....