BERLIN Gray Stoneware Clay 27.6lbs (Cone 5-10)

Grey stoneware clay with 40% impalpable grog 0-0.2 mm (up to 80 Mesh). Formulated for artistic ceramics, it is ideal for throwing and modelling smooth pieces with fine details. The high content of grog confers an excellent behaviour during drying and firing. Depending on the firing temperature, it develops an interesting range of greys, from cement to dark grey, which satisfies the most avant-garde trends in artistic ceramics. Suitable for tableware (food-safe), according to ISO 6486. Available in extruded body (moist form).

Firing range: 1200-1300ºC / Cone 5-10
Biscuit temperature: 1000ºC / Cone 06
Water content: 19%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.7%
Firing shrinkage (1300ºC): 6.7%
Porosity (water absorption at 1300ºC): 0.1%
Dry bending strength: 2.9 N/mm2
Fired bending strength (1300ºC): 42.9 N/mm2
Thermal coefficient (25-500ºC): 53.8x10^-7ºC^-1