The Most popular epoxy resins are either diglycidyl ethers of bisphenol A, and that is made by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular excess weight is managed by adjusting the ratio of ECH to BPA; higher ratios deliver reduced molecular weights. Namun di Indojaya harga epoxy lantai https://www.propanraya.com/kategori/cat-lantai