... /bag 1. Brief introduction of boron series flame-retardant material Zinc Borate is one of the earliest ... PET, PBT, nylon, unsaturated polyester, epoxy resin, polyimide and all kinds of fire retardant coatings.2. Performance index indexspecificationB2O3 ... the PVC electric cable, PP, EVA, unsaturated polyester, epoxy polyester, natural rubber, synthetic rubber, polychloroprene, expansive fireretardant ...