Kaolin, also called china clay or porcelain clay, is a fine, iron-free, white rock, the main component of which is kaolinite, a weathering product of feldspar. Other ingredients include various other clay minerals and non-decomposed feldspar particles.
It is used in the manufacture of paper and in porcelain processing, also as an auxiliary agent in the production of cement-based dry-mortars.
In the construction industry, kaolins are used as an auxiliary agent in the production of cement-based construction chemical products such as dry mortars. Kaolin is also used in paper manufacturing and porcelain processing. Further areas of application are rubbers, paints, printing inks and industrial paints.