ZUMAI Fine Grog with Grey Sculpting Clay

Grey sculpting vacuum clay with 40% fine grog (up to 35 Mesh). Formulated for artistic and decorative ceramics, ideal for sculptures and pieces for outdoor use (garden pots, tiles, etc.). The high grog content ensures a beautifully textured surface and excellent conformity during drying and firing. Depending on the firing temperature, it develops an interesting range of greys, from cement to dark grey, meeting the most avant-garde trends in artistic and decorative ceramics. Available in extruded form (moist form). Sold in 12.5kg packages. Firing range: Cone 5-10 (2192º-2372ºF) Biscuit temperature: Cone 06 (1855ºF) Water content: 17% Plasticity (IP Atterberg): 16 Carbonate content (CaCO3): 0% Dry shrinkage: 5.5% Shrinkage on firing at Cone 10: 3.9% Porosity (water absorption) at Cone 10: 2.6% Dry flexural strength: 2.5 N/mm2 Fused flexural strength (1300ºC): 37.8 N/mm2 Thermal coefficient (25-500ºC): 59.9x10^-7ºC^-1