zinc borate use as Flame retardant,smoke suppressant in PVC, rubber,Conveyor Belting,PE,Polyolefin.poxy resin,Polyamide,coating, Our Environmental zinc borate has got the certificate of Iso9002 , SGS and REACH, etc.Property: White powder, without poison, flavor and corrosiveness. Doesn't dissolve in water and other organic solvent, is easy dissolved in hydrochloric acid & sulfuric acid, etc. Good ...