PA - White Earthenware Clay

$34.19

PA is a white earthenware clay formulated for wheel-throwing and modeling. It is a high quality and polyvalent clay, very popular for its fineness and plasticity.

PA's balanced calcium carbonate content confers higher stability than traditional white earthenware clays. Its coefficients of thermal expansion are ideal for standard pottery glazes, in both single and twice firing processes.

PA is available in extruded body (moist form), in a 27.6 lb. package.

DETAILED INFORMATION:

Firing range (biscuit): Cone 05-03 (1911º-2019ºF)
Water content: 20%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 17%
Drying shrinkage: 6.8%
Firing shrinkage at Cone 04: -0.4%
Porosity (water absorption) at Cone 04: 12.3%
Dry bending strength: 5.1 N/mm2
Fired bending strength at Cone 04: 27.8 N/mm2
Thermal coefficient (a25-500ºC): 79.1x10-7ºC-1

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