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SIO-2 Black Ice Porcelain Ceramic Pottery Clay | 11 lb, Cone 6-7 | High Fire Kiln-Fired Clay

<ul><li>High Firing Range: Firing range of Cone 6-7 (1200C to 1240C) in an oxidizing atmosphere, with a biscuit temperature of 1000C / Cone 06.</li><li>Versatile Application: Can be thrown on a wheel or used for hand-building and modeling due to its high plasticity.</li><li>Food-Safe Composition: Suitable for tableware (food-safe) according to ISO 6486, with 0.0% porosity (water absorption) at 1220C.</li><li>Glaze Compatibility: Compliments most typical ceramic glazes, with a deep black base best accentuated with a clear glaze.</li><li>Physical Properties: Features 22% water content, 11 plasticity (IP Atterberg), 5.7% drying shrinkage, and 10.3% firing shrinkage at 1220C.</li></ul>

<ul><li>HIGH FIRE: With a firing range of Cone 6-7 (1200ºC to 1240ºC), this porcelain clay is the perfect choice for potters seeking a stable and secure formula.</li><li>HIGHLY VERSATILE: This beautifully black ceramic clay is valued for its smoothness, plasticity, stability and consistency. Can be thrown on a wheel or used for hand-building &amp; modelling.</li><li>PREMIUM QUALITY: All SIO-2 clays have been rigorously tested through strict quality standards, making them the ideal choice for both professional and amateurs alike.</li><li>IDEAL FOR GLAZES: Black Ice Porcelain clay compliments most typical ceramic glazes well. The porcelain clay's deep black base is best accentuated and enhanced with a clear glaze applied over it.</li><li>MANUFACTURED SINCE 1874: Made in Spain by Ceramica Collet S.A., with ACMI non-toxic AP-Certification.</li></ul>

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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 1240°C (oxidizing 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 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 Storage: Protect ceramic clay bodies from direct sunlight, avoiding excessive temperature changes and protect from frost. Use: Technical details are available with information on the characteristics of each product and its use. It is recommended to test clay body prior to large scale use in order to verify suitability in both the ceramic process (shaping, drying, firing and decoration) and the final application that is expected to be obtained. Safety: All SIO-2® clay bodies are certified by the Art & Creative Materials Institute (ACMI) and conform to ASTM D-4236 safety guidelines.