The insulation material mainly used in furnace, kiln, stove, lining of cement, steel & ... insulation board is a kind of low-density, high fire resistance, free asbestos insulation material. Widely use in furnace, kiln, stove, lining ... °C,16hrs)≤2(1000°C,16hrs)≤2(1000°C,3hr) High Temperature Calcium Silicate Insulation Board