Synthesis of bisphenol-A-diglycidyl ether which has a high molar mass A product comprising a couple of repeat units (n = 1 to 2) is often a viscous, crystal clear liquid; this known as a liquid epoxy resin. A basic molecular understanding of epoxy yellowing was obtained, when Krauklis and Echtermeyer https://www.propanraya.com/id/produk/epoxy-fast-dry