BER-128(E51) is a liquid type standard Epoxy Resin derived from Bisphenol A and Epichlorohydrin. It provides excellent adhesion, chemical resistance, heat resistance, etc. BER-128(E51) is a general standard resin with extensive use.It can be combined with PM839 (thiol curing agent) and DMP-30 (accelerator) to form a low-temperature fast epoxy curing system.