The Preferred epoxy resins are possibly 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; substantial ratios crank out lessen molecular weights. In such cases, so-identified as ‘reactive diluents’ https://www.propanraya.com/kategori/cat-lantai