... to the difference of composition (XZnO.YB2O3.ZH2O), FB flame retardant has more than ten varieties. Through SGS testing, zinc ... additive of Antimony oxide and other halogen flame retardant ,can improve the nature of flame retardant effectively, to reduce the smoke produced ... and rubber processing, such as PVC, PE, PP, enhance polyamide, PVC resin, polyphenylene ethylene, epoxy resin, polyester resin ...