... retardant and smoke suppressant, in PVC, PE, Flame Retardant Chemical( Zinc Borate):Specification: Item/Grade Zinc borate 2335( ... performance, remove smoke emission and adjust the balance on chemical, mechanical, electrical etc properties 2. As environmental protection ... Base on its chemical properties, Zinc borate is also used on anti-corrosion, infra red absorption, fungicide for wood preservation ...