... quality Zinc borate 3.5H2OIntroduction:Zinc borate is primarily usedas a flame retardant in plastics and cellulose fibers, paper, rubbers ... suppresses arcing and tracking.In halogen-containing systems, zinc borate is used together with antimony trioxide and ... Bag17Loading Quantity18-20MT / 20'FCL. zinc borate wholesaler China for rubber, plastic, wood, paper, firefihgt, fiber, anti corrosive, fiber