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China Clay Product Description

China Clay also known as kaolin, is an essential ingredient in the manufacturing of paper, rubber, paint and many other products which we use in our day to day life. Kaolin is named after the hill in China (Kao-ling) from which it was mined for centuries.

In the very natural state, kaoiln is soft white powder which consist the principal of mineral kaolinite. It contains varying amounts of other minerals such as muscovite, quartz, feldspar and anatase. Crude kaoiln is frequently stained yellow by iron hydroxide pigments. It is often necessary to bleach the clay chemically to remove the iron pigment and to wash it with water to remove the other minerals in order to prepare kaolin for commercial use.

More about China Clay


  • China Clay is the heart of several industries like potteries, tiles, ceramics, glass and others.
  • Paints China Clay is used in wide varieties of paints like distemper, cement primer, wood primer, emulsion paint, texture coating, spray plaster, putties, fillers and undercoats.
  • As extender and filler in Paints, Paper, Detergents, Bakelite Powder and in Rubber industries etc.
  • Paper It is used in varieties of papers, card boards, hard boards and others
  • Plastic it is used as a filler in combination with others to impart strength and smoothness.


Chemical Formula: Al2O3 , 2SiO2, 2H2O


Silica SiO2 49.03
Alumina Al2O3 32.22
Ferric Oxide Fe2O3 0.85
Titanium Oxide TiO2 1.34
Manganese Oxide MnO NIL
Calcium Oxide CaO 1.36
Sodium Oxide Na2O 0.64
Potassium Oxide K2O 0.34
Loss on ignition LOI 13.55

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