Synthesis of bisphenol A diglycidyl ether The commonest epoxy resins are determined by reacting epichlorohydrin (ECH) with bisphenol A,  leading to another chemical material known as bisphenol A diglycidyl ether (usually often known as BADGE or DGEBA). Flake Epoxy: Ornamental flakes or chips are broadcast in to the epoxy although it continues