The Most well-liked epoxy resins are either diglycidyl ethers of bisphenol A, that is developed by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular excess weight is managed by changing the ratio of ECH to BPA; large ratios deliver decrease molecular weights. Epoxy resins are a flexible course of https://www.propanraya.com/kategori/cat-lantai