PRAI White Stoneware with Impalpable Grog 0-0.2mm (Cone 6-10) 12.5kg


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White stoneware clay with 40% impalpable grog (up to 80 Mesh). Formulated for artistic ceramics, it is ideal for wheel-throwing and modelling smooth pieces with fine details.

The high content of grog confers an excellent behaviour during drying and firing. Its particular ivory colour after firing is much appreciated and provides an excellent ware for glazes and colouring oxides. Colouring oxides develop bright and intense tones on this body.

Suitable for tableware (food-safe) according to ISO6486.

Available in extruded body (moist-form).


Technical Specifications:

Firing range: 1240-1300ºC / Cone 6-10
Biscuit temperature: 1000ºC / Cone 06
Water content: 19%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.9%
Firing shrinkage 1300ºC: 7.0%
Porosity (water absorption) at 1300ºC: 0.0%
Dry bending strength: 3.0 N/mm2
Fired bending strength 1300ºC: 51.0 N/mm2
Thermal coefficient 1250ºC (25-500ºC): 60.4x10^-7ºC^-1