Better molecular bodyweight diglycidyl ethers (n ≥ 1) are formed by the response of the bisphenol A diglycidyl ether shaped with further more bisphenol A, this is known as prepolymerization: An aromatic epoxy also features a “ring” within its chemical structure and is particularly an item of BPA and epichlorohydrin https://www.propanraya.com/id/produk/epoxy-fast-dry