BLACK ICE is a black porcelain noted for its beautiful black graphite. It has high plasticity, which makes it ideal for wheel-throwing and modelling.
Its formula is very stable and provides a secure firing range between 1200 and 1240ºC (oxidising atmosphere).
Suitable for tableware (food-safe), according to ISO 6486. Available in extruded body (moist form). Presented in a practical 5 kg cylindrical format with double packaging.
Technical Specifications:
Firing range: 1200-1240ºC / Cone 6-7
Biscuit temperature: 1000ºC / Cone 06
Water content: 22%
Plasticity (IP Atterberg): 11
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.7%
Firing shrinkage 1220ºC: 10.3%
Porosity (water absorption) at 1220ºC: 0.0%
Dry bending strength: 3.1 N/mm2
Fired bending strength 1220ºC: 40.1 N/mm2
Thermal coefficient 1240ºC (25-500ºC): 62.5x10^-7ºC^-1