Magnesium aluminate is low temperature synthetic material, non-toxic, tasteless, no stimulation for breathing and skin, good thermal stability, safe and easy to use, low expansion co-efficient, good fusibility. It is mainly used in plastic industry as flame retardant and smoke inhibitor to replace the antimony trioxide as environment friendly products, which can effectively improve the thermal stability and light stability performance of the product. Mainly used for Special textile, engineering plastics, all kinds of natural rubber and synthetic rubber, coating, ceramic glaze, electronic products shell, chip, copper clad and other plastic products. In ceramics, glass, frit industries, can replace part of precious raw materials, such as zinc oxide, boric acid, boron sand, red lead, etc., high quality and reasonable price.