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Kaolin

 

Kaolin is a particular type of clay formed almost exclusively from Kaolinite. It is used for ceramics and has different industrial uses. It has usually white, so called kaolin white clay, or greyish color. The name comes from the Gaoling area of China where it was first discovered, which explains why kaolin is often called ‘China clay’ internationally. China is still one of the world’s main producers, along with the United States, Germany, Czech Republic and India.

 

C.B.C. sells kaolin with high levels of purity and different particle sizes for:

 

Glazes

Kaolin is required by the market to obtain finished product of light shades.

 

Ceramic bodies

In the production of light-coloured ceramic bodies it is possible to use different types of kaolin – primary, secondary and processed. C.B.C. offers all types. Ukrainian white kaolin is used in the production of monoporosa and extra-white technical bodies. It has levels of Fe2O3 from 0,3% to 1% and Al2O3 from 23% to 36%.

Read the technical data sheets of kaolin for ceramic bodies: Kaolin EF, Kaolin A25, Kaolin 314, Kaolin APV

 

Tableware

The physical composition of kaolin can be very variable and enhance different commercial and aesthetic properties such as brightness, opacity, strength and viscosity. These are the characteristics specifically requested by the tableware industry.

 

PROPERTIES

Plasticity

 

Typical feature of argillaceous minerals. Kaolin is often mixed with other materials as a plasticizing additive or to impart a greater share of alumina to mixtures. Because of this, it is used in a wide range of fields such as refractories manufacturing, formulation of glazes and as a filler for the production of tires and ceramic bodies.

Whiteness

 

Due to its low content of coloured elements like iron and titanium, kaolin can guarantee an high level of whiteness.

Opacity

 

It mainly represents a commercial and aesthetic property. Based on market request kaolin can be used in compound to get matt effects.