Sio-2 PF Red Earthenware Clay Sold in a 27.5lb bag This is a traditional red earthenware clay body. It is very popular for its fineness and excellent plasticity. Its coefficients of thermal expansion are ideal for standard pottery glazes, in both single and twice firing processes. Incredible results in reducing atmosphere can be obtained (metallic reflection technique).This clay is suitable for both wheel-throwing and hand building. This clay body is widely used and very popular in Europe. Firing - Ceramic kiln low fire Weight/Volume - 27.5 lbs / 12.5 kg Grog - Ungrogged State - Moist form (plastic body) Stiffness - For throwing and modelling/handbuilding Firing range: Cone 06-04 (1778-1931ºF / 970-1055ºC) Water content: 22% Plasticity (IP Atterberg): 17 Carbonate content (CaCO3): 10% Drying shrinkage: 5.5% Firing shrinkage at Cone 06: 0.6% Porosity (water absorption) at Cone 06: 13.5% Dry bending strength: 6.6 N/mm2 Fired bending strength at Cone 06: 27.9 N/mm2 Thermal coefficient (a25-500ºC): 77.7x10-7ºC-1
