Zumaia – Gray Sculpture Clay with Fine Grog


High fire gray 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).

Supplied in a 27.6 lb. sealed package


1 clay body = $15 anywhere in USA

2 clay bodies = $30 anywhere in USA

3+ = please contact us for shipping quote



Firing range: Cone 5-10 (2192º-2372ºF
Bisque 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