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Cork ceramic clay no. 8 (1000-1200°C)


Stoneware No. 8 is a special mass of brown colour with colourful black chamotte of 12,5% content in size 0,5 – 2,0 mm. Its beautiful appearance resembles cork.

Basic price for purchase of 10–990 kg per quality.

10% discount for purchases from 1 tonne per quality.

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Stoneware no. 8 is a special mass of brown colour with colourful black chamotte of 12,5% content in size 0 - 1,0 mm. We introduced this material to our market in 2013 as a novelty in our product range. Its beautiful appearance resembles cork. The glaze beautifully brings out the detail, with the spectacular black chamotte standing out on the edge. The quality of the clay as well as the packaging corresponds to the high standard of all German Witgert ceramic clay. This product has been specially mixed according to the individual requirements of our Artik studio workshop, you will not be able to buy it from other dealers.

Witgert masses are well packed in a strong PE bag secured with an aluminium clip. They can be easily transported and the clasp on the packaging can be re-closed with pliers when the required quantity is removed. Witgert ceramics are produced using wet or semi-dry technology (flakes). They are not made from dry powdered or granulated mixtures, which avoids the hardening that is common with such materials, which occurs after a certain period of storage even without breaking the packaging.

For long-term storage of our ceramic clays, we recommend placing them in a low-heated area (garage, basement, etc.) without the risk of freezing, put them in a black bag and tie them up. The absence of light will prevent the formation of mould. Stored in this way, the materials have a virtually unlimited shelf life.

Data sheet

Recommended firing1000 - 1200°C
Chamotte content12.5% of chamotte size 0 - 1.0 mm
Type of matterspecial
Shrinkage during drying4,9%
Firing shrinkage by 1000°C1,2%
Firing shrinkage by 1100°C3,8%
Firing shrinkage by 1200°C4,9%
Water absorption by 1000°C12,5%
Water absorption by 1100°C6,1%
Water absorption by 1200°C3,2%


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