... Dry Powder & Granules 2) Purity:99.7% & 99.5% 3) Use: Rubber,Food , Chemicals... 4) Packing: 25kg 5) ISO9001 Zinc ... alkali. Zinc oxide as chemical additives is usually and widely used in plastic, silicate products, synthetic rubber, lubricants, paint, medicines ... ) %≤0.30.4PACKING: 25kg/bag, 1000kg/bag (pallet optioned)USES: Rubber/tyre, pharmacy, Glass, cement, Food, electronic, zinc oxide used in ...