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

Black Earthenware Clay 12.5kg (PM)


Regular price €24.95 Sale

Black manganese earthenware clay. Its black colour in oxidising atmosphere is a highlight in the range of low firing colours. Its fineness and plasticity make it an excellent choice for throwing and modelling. Very good behaviour with standard pottery glazes. Available in extruded body (moist form) in a wide range of water content depending on the shaping application: wheel-throwing, modelling and shaping procesess.

Firing range: 970-1025ºC / Cone 06-05
Water content (throwing): 21%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 8%
Drying shrinkage: 5.0%
Firing shrinkage (1000ºC): 0.9%
Porosity (water absorption at 1000ºC): 14.3%
Dry bending strength: 4.5 N/mm2
Fired bending strength (1000ºC): 28.9 N/mm2
Thermal coefficient (25-500ºC): 77.9x10^-7ºC^-1