PRB white stoneware refractory clay 0–1.5 mm – 12.5 kg

Chamotte refractory stoneware clay, in a rectangular block. Very plastic and soft; ideal for raku, modeling, or throwing on a wheel. Excellent for large-scale sculptures. Soft hardness. The clay must be kept well-conditioned when not in use. 12.5 kg packaging. Technical data sheet available for download.

– Dry mechanical strength: 25±10 kgf/cm²
– Fired mechanical strength: 340±50 kgf/cm²
– Total shrinkage: 8.5±1.5 %
– Water absorption: 1.5±1.0 %
– Cubic thermal expansion coefficient (ΔT20–400 °C): (175 ± 5) × 10^-7 °C^-1
– Bisque temperature: —
– Glaze temperature: 1275 °C (±25 °C)