... products are produced from the ore of ourselves. 2.Magnesium Oxide 60% to 66%. 3.Size and packing at ... and chemical industry. It is also applied in making magnesium hydroxide flame retardant, which is widely used in rubber, ... retardant made from brucite has excellent performances such as: high filling, good flame retardancy, low smoke, low toxicity, ... 12%0.500.33%30.50%85.00% high purity magnesium oxide