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Potclays 164-ROKK Grey stoneware
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Developed for sculptural application and outdoor pieces. The high fine grog (40%) content provides a beautiful textured surface and excellent handling properties.
Firing range: 1200-1300ºC
Biscuit temperature: 1000ºC
Water content: 17%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.5%
Firing shrinkage (1300ºC): 3.9%
Porosity (water absorption at 1300ºC): 2.6%
Dry bending strength: 2.5 N/mm2
Fired bending strength (1300ºC): 37.8 N/mm2
Thermal coefficient (25-500ºC): 59.9x10^-7ºC^-1"
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