Grey sculpture clay with 40% coarse grog 0-1.5 mm (up to 12 Mesh).

This clay body has a coarse grog which creates a fantastic rough and rugged texture.

It would be ideal for large sculptures and can also be used for outdoor pieces (garden pots, tiles, etc.). That being said, it could also be used by the adventurous thrower with strengthened hands, or hand builder.

It has excellent behaviour during drying and firing.

Depending on the firing temperature, it develops an interesting range of greys, from cement to dark grey. Quite unique both texturally and in colouration.

Available in an extruded body.

Technical Specifications:

Firing range*: 1200-1300ºC/ Cone 5-10
Biscuit temperature: 1000ºC
Water content: 17%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.1%
Firing shrinkage 1300ºC: 3.9%
Porosity (water absorption) at 1300ºC: 4.8%
Dry bending strength: 2.3 N/mm2
Fired bending strength 1300ºC: 21.1 N/mm2
Thermal coefficient 1250ºC (25-500ºC): 64.5x10^-7ºC^-1

(*) Firing range recommended for the clay to develop its best performance, both in terms of technical and safety characteristics, under conventional firing conditions. The colour samples may show temperatures outside the recommended range to provide a broader view, but these are pieces fired under controlled conditions. Cone equivalence according to Orton table for self-supporting cones, regular-SSB and 150ºC/hr heating rate.