The Most popular epoxy resins are both diglycidyl ethers of bisphenol A, which happens to be created by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular weight is managed by adjusting the ratio of ECH to BPA; high ratios make lessen molecular weights. Protection Data Epoxies have gone through https://www.propanraya.com/kategori/cat-lantai