SIO-2 Clay

Black Ice Porcelain Clay

Black Ice is a black porcelain body noted for its beautiful black graphite fired colour. 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 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 5 kg cylindrical format with double packaging.
Firing range: 1200-1240ºC
Biscuit Temperature: 1000⁰C 
Water Content: 22%
Plasticity (IP Atterburg): 11
Calcium Carbonate CaC0₃: 0%
Drying Shrinkage: 5.7%
Firing Shrinkage 1220⁰C: 10.3%
Porosity (water absorption) 1220⁰C: 0%
Dry Bending Strength: 3.1N/mm²
Fired Bending Strength 1050⁰C: 40.1N/mm²