Zinc Borate ZB-2335 Zinc borate ZB-2335 800 Zinc oxide ZnO, %: 37.0-40.0 Boric anhydride B2O3, %: 45.0-48.0 zinc borate is an environment-protecting non halogen flame retardants, according to the different (XZnO composed YB2O3. J ZH2O), FB flame retardants ten several varieties. The most commonly used varieties for this product - 3.5 water zinc borate, say again ZB - 2335 flame retardants. This ...