PNM black ceramic paste – 12.5 kg

Black earthenware ceramic clay with manganese. Ideal for modeling or potter's wheel. Soft hardness. The color may vary depending on the firing atmosphere: from dark brown to black in oxidation. The paste should be kept well-conditioned when not in use. 12.5 kg packaging. Technical data sheet available for download.

– Dry mechanical strength: 65±10 kgf/cm²
– Fired mechanical strength: 525±50 kgf/cm²
– Total shrinkage: 10.5±1.5 %
– Water absorption: 3.0±1.0 %
– Cubic thermal expansion coefficient (ΔT20–400 °C): (215 ± 5) × 10^-7 °C^-1
– Bisque firing temperature: 980 °C (±10 °C)
– Glaze firing temperature: 1020 °C (±10 °C)