Our Insulating Porosinth Bricks are mainly made from varied tough material such as andalusite, sillimanite, chamotte, mullite, kyanite, kaolin and clay. However, corundum, alumina hydrate and alumina in the state of hollow circulate corundum are additionally utilized for our bricks with high grouping temperature. The heat conductivity is characterized by the absolute porosity, pore shape as well as pore estimate circulation. In addition, the porosity is delivered by water and burnout materials. The burnout materials comprise cellulose, coke, styrene bubbles, sawdust and more that are utilized in the making of our Insulating Porosinth Bricks.