Sio-2 BLACK ICE Black Porcelain Sold in 11 lb bags Black Ice is a black porcelain body noted for its beautiful black graphite fired color. It has high plasticity, which makes it ideal for wheel-throwing and modeling. Its formula is very stable and provides a secure firing range between Cone 6 and Cone 7 (oxidizing atmosphere). Suitable for tableware (food-safe), according to ISO 6486:1999. Available in extruded body (moist form). Supplied in a practical 11 lb cylindrical format with double packaging. Firing - Ceramic kiln high fire Weight/Volume - 11 lbs - 5 kg Grog - No grog State - Moist form (plastic body) Stiffness - For wheel throwing and handbuilding Firing range: Cone 6-7 (2192º-2264ºF / 1200-1240ºC) Bisque firing temperature: Cone 06 (1832ºF / 1000ºC) Water content: 20% Plasticity (IP Atterberg): 11 Carbonate content (CaCO3): 0% Drying shrinkage: 5.4% Firing shrinkage at Cone 6: 10.3% Porosity (water absorption) at Cone 6: 0.0% Dry bending strength: 3.1 N/mm2 Fired bending strength at Cone 6: 39.8 N/mm2 Thermal coefficient (a25-500ºC): 54.3x10-7ºC-1
