ZUMAIA Gray Sculpture Clay 27.6lb (Cone 5 – 10)

Description

Gray Sculpture Clay with Fine Grog

Gray sculpture clay body with 40% fine grog (up to 35 Mesh). Formulated for artistic and decorative ceramics, it is ideal for sculpture and pieces for outdoors (garden pots, tiles, etc.). The high content of grog confers a beautiful textured surface and an excellent behavior during drying and firing. Depending on the firing temperature, it develops an interesting range of grays, from cement to dark gray, which satisfies the most avant-garde trends in artistic and decorative ceramics. Available in extruded body (moist form).

Firing range: Cone 5-10 (2192º-2372ºF
Biscuit temperature: Cone 06 (1855ºF)
Water content: 17%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.5%
Firing shrinkage at Cone 10: 3.9%
Porosity (water absorption) at Cone 10: 2.6%
Dry bending strength: 2.5 N/mm2
Fired bending strength (1300ºC): 37.8 N/mm2
Thermal coefficient (25-500ºC): 59.9×10^-7ºC^-1