40%
1.5mm
1300°C
Grey sculpture clay with 40% coarse grog 0-1.5 mm (up to 12 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 behaviour during drying and firing. Depending on the firing temperature, it develops an interesting range of greys, from cement to dark grey, which satisfies the most avant-garde trends in artistic and decorative ceramics. Available in extruded body (moist form).
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.
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