Physical and chemical properties of zinc borate 3.5 Water: White fine powder, dispersing performance products. No models are flame retardant additives. Widely used in rubber and PVC, ABS, chlorinated polyethylene, polypropylene, fiber, paint, paint, fire-retardant performance is good, and reduce the amount of special effects smoke. Halogen flame retardants and antimony trioxide and have a good synergy. Packaging: PE lined plastic woven bag of 25 kg weight; also be packaged according to customer needs. Quality Standard: meet Q/320281RNM01-2003 standards. Item Index: 36-40% zinc oxide content, boron oxide content of 45-49%, free water content% ≤ 1, sieve residue (320)% ≤ 0.5