PA BLANCA WHITE CLAY 12.5kg

PA BLANCA WHITE CLAY is specially formulated for turning and modeling. It is a high-quality, multivalent clay, very popular for its fineness and plasticity. Its balanced calcium carbonate content provides higher stability compared to traditional white clays. Its thermal expansion coefficients are ideal for standard ceramic glazes in both single and double firing processes. It is available in extruded body (moist form), suitable for turning, shaping and modeling. 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% Cone flexural strength: 5.1 N/mm2 Firing flexural strength at cone 04: 27.8 N/mm2 Thermal coefficient (a25-500ºC): 79.1x10-7ºC-1