Greater molecular pounds diglycidyl ethers (n ≥ 1) are fashioned by the reaction in the bisphenol A diglycidyl ether fashioned with further bisphenol A, this is termed prepolymerization: An aromatic epoxy also contains a “ring” in its chemical framework and it is a product of BPA and epichlorohydrin reacting collectively. https://www.propanraya.com/id/produk/epoxy-fast-dry