2-ethylimidazole as a corrosion inhibitor in epoxy coatings: a comprehensive review abstract: epoxy coatings are widely employed for corrosion protection of metallic substrates in diverse industrial applications. the effectiveness of these coatings can be significantly enhanced through the incorporation of corrosion inhibitors. 2-ethylimidazole (2-ei) is a heterocyclic organic compound that has shown promise as a...