The Preferred epoxy resins are both diglycidyl ethers of bisphenol A, which is produced by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular excess weight is controlled by altering the ratio of ECH to BPA; superior ratios deliver decreased molecular weights. Safety Information and facts Epoxies have gone through https://www.propanraya.com/kategori/cat-lantai