SIO-2 - BLACK ICE PORCELAIN CLAY

BLACK ICE is a black porcelain characterized by a beautiful graphite black color.

• It is highly plastic, making it suitable for working on the wheel and for modeling.
• Its formula is very stable and allows for a safe firing range between 1200 and 1240ºC (oxidizing atmosphere).
• It is suitable for the production of food-safe objects, according to ISO 6486 standard.
• It is available in extruded plastic paste and is presented in a practical cylindrical format of 5 kg with double packaging.

Technical specifications

• Firing temperature: 1200-1240ºC
• Biscuit temperature: 1000ºC
• Humidity: 20%
• Plasticity (Atterberg IP): 11
• Calcimetry (CaCO3): 0%
• Shrinkage during the drying process: 5.4%
• Shrinkage during firing (1220ºC): 10.3%
• Porosity (water absorption at 1220ºC): 0.0%
• Dry mechanical strength: 3.1 N/mm2
• Mechanical strength after firing (1220ºC): 39.8 N/mm2
• Coefficient of expansion (25-500ºC): 54.3x10^-7ºC^-1