The preferred epoxy resins are both diglycidyl ethers of bisphenol A, which can be developed by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular pounds is controlled by modifying the ratio of ECH to BPA; high ratios deliver decrease molecular weights. Nonetheless, it is necessary to note that amines https://www.propanraya.com/kategori/cat-lantai