The Most popular epoxy resins are either diglycidyl ethers of bisphenol A, that is made by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular fat is controlled by adjusting the ratio of ECH to BPA; high ratios make lessen molecular weights. Epoxy is a versatile materials that is broadly https://www.propanraya.com/kategori/cat-lantai