Expanded Vermiculite is layered structure, crystalline layers containing water rate in the 5 -25 times the thermal conductivity of small, -200kg/m3 density at 50, is a good insulating material. The good quality of the expanded vermiculite, the maximum temperature of up to 1,100 ℃. In addition, the expansion of vermiculite has good electric insulation. Vermiculite expansion purposes : insulation materials, fireproofing material, seeding, flowers and trees, friction materials, sealing materials, electric insulation materials, paint, sheets, paints, rubber, refractories, hard water Softener, and refining, construction, shipbuilding, chemical and other industries.