zinc borate use as Flame retardant and smoke suppressant in PVC, Conveyor Belting,PE,Polyolefin.poxy resin,Polyamide,coating,etc zinc ... one high efficient flame retardant,it is widely used in PVC Compound,Rubber, Conveyor Belting, Polymer,polyolefin,Epoxy resin,Polyamide,coating,adhesives ...