The basic raw materials used to form the body of the tiles are Feldspar, Ball clay, Dolomite and Silica sand. Most of these materials are used in their raw state, as mined. These materials are generally homogenized to ensure consistency in composition.
It is important to mix the right amounts of raw materials to achieve the desired properties. Batch calculations are thus required, which must take into consideration both physical properties and chemical compositions of the raw materials. Once the appropriate weight of each raw material is determined, the raw materials must be sent to ball mill.