Black Ice is a black porcelain noted for its beautiful black graphite. 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 6-7 (oxidizing atmosphere).
Black Ice is suitable for tableware (food-safe), according to ISO 6486:1999.
It is available in extruded body (moist form), and presented in a practical 11 lb. cylindrical format with double packaging.
Firing range: Cone 6-7 (2269ºF-2295ºF)
Biscuit temperature: Cone 06 (1855ºF)
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 (25-500ºC): 54.3x10^-7ºC^-1