WBAFRICANSTONE
Black stoneware African Stone 40% grog 0-0.2 mm - AFRICANSTONE
Very plastic clay, firing of a beautiful black in oxidation and black metallic in reduction.
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Black stoneware African Stone 40% grog 0-0.2 mm - AFRICANSTONE
The slower you fire the African Stone, the better your results.
T° Bisqueware / 980 - 1020°C (1796-1868°F)
T° Firing / 1150 - 1270°C (1832-2336°F)
Shrinkage dry / 8%
Shrinkage 1280°C / (2336°F) 4.5%
Porosity 1270°C / (2318°F) 4%
Coef of expansion / 70 x 10-7