... of high-efficient flame retardants are widely used in plastic, rubber, coating etc.1. Zinc borate ZB-2335 Item / ... , zinc borate is being widely applied directly in plastic and rubber processing, such as PVC, PE, PP, enhance polyamide, ... polystyrene polyester, epoxy resin, acid and ethylene resin,styrene butadiene rubber natural rubber, neoprene etc. Can also be applied to paper, fiber ...