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White Earthenware Clay (PA White) 12.5kg – Art Academy Direct
FREE Delivery to Malta & Gozo when spending over €50 and a Reduced Delivery Fee of €2.50 when spending over €25
White Earthenware Clay (PA White) 12.5kg

White Earthenware Clay (PA White) 12.5kg


Regular price €18.75 Sale

White earthenware clay specially formulated for wheel-throwing and modelling. It is a high quality and polyvalent clay, very popular for its fineness and plasticity. Its balanced calcium carbonate content confers higher stability than traditional white earthenware bodies. Its coefficients of thermal expansion are ideal for standard pottery glazes, in both single and twice firing processes. Available in extruded body (moist form) in a wide range of water content depending on the shaping application: wheel-throwing, modelling and shaping processes (extruding and pressing).

Firing range (biscuit): 1050-1080ºC / Cone 05-03
Water content (throwing): 20%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 17%
Drying shrinkage: 6.8%
Firing shrinkage (1050ºC): -0.4%
Porosity (water absorption at 1050ºC): 12.3%
Dry bending strength: 5.1 N/mm2
Fired bending strength (1050ºC): 27.8 N/mm2
Thermal coefficient (25-500ºC): 79.1x10^-7ºC^-1