SIO-2 PCLI High Fire Paper Stoneware Clay, 27.6 lb (Cone 03-7) Natural Modeling Pottery Clay for Wheel Throwing & Hand Building($29.93Value)

Description

HIGH FIRE: With a wide firing range of Cone 03-7 (1100ºC to 1260ºC), this paper stoneware clay is the perfect choice for potters seeking a stable formula to create impossible-looking stoneware pieces. HIGHLY VERSATILE: This amazing paper ceramic clay is valued for its presence of paper fibers, which helps avoid cracks and deformations when firing. Can be thrown on a wheel or used for hand-building & modelling. PREMIUM QUALITY: All SIO-2 clays have are non-toxic and have been rigorously tested through strict quality standards, making them the ideal choice for both professional and amateurs alike. AMAZING UNGLAZED: PCLI clay has a distinguishing final texture that is best when left unglazed. MANUFACTURED SINCE 1874: Made in Spain by Ceramica Collet S.A., with ACMI non-toxic AP-Certification. Stoneware paper clay with impalpable grog 0-0.2 mm (up to 80 Mesh). Formulated for artistic ceramics, it is unique for modelling, thanks to its exceptional plasticity. It is especially suitable for making impossible shapes with difficult drying. The presence of paper fibres inside avoid formation of cracks and problems of deformations, and leads PCL clay to surprising artistic possibilities. Odourless. The fibers present in PCLI clay promote effective drying by creating a cohesive structure within the clay while also facilitating a consistent and efficient water drainage process. This unique property enables the creation of pieces with exceptionally thin thicknesses, which would typically be prone to cracking if made with a different type of clay. However, when aiming to craft tall and flat pieces, the crucial factors are the clay's plasticity and consistency rather than its drying characteristics. Firing range: 1100-1260ºC / Cone 02-8 Biscuit temperature: 1050ºC / Cone 05 Water content: 24% Plasticity (IP Atterberg): 27 Carbonate content (CaCO3): 0% Drying shrinkage: 6.7% Firing shrinkage 1200ºC: 5.8% Porosity (water absorption) 1200ºC: 5.6% Dry bending strength: 5.2 N/mm2 Fired bending strength 1200ºC: 39.5 N/mm2 Thermal coefficient 1200ºC (25-500ºC): 55.7x10^-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.