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Diatomite insulating brick is largely used in the tunnel kilns and verious furnaces where the thermal insulation is needed. Diatomite insulating brick can be formed by extrude machine and then cut into pieces by steel wire. Diatomite insulating brick can also shaped by plastic method. It can be cut into the exact size you need after it fired.
 The clay need to be added into the raw material in order to get enough strength. In order to improve the insulation properties of diatomaceous insulation brick, combustible ingredients are mixed in, such as asbestos fibers, sawdust and etc. After drying , the diatomite insulation brick is fired in the temperature between 900 to 1000 C.