SIO-2 PGV tableware clay 12.5kg

Tableware clay. It is especially formulated for making tableware with high impact resistance. Firing at medium temperature (1150 ºC). Its white colour after firing provides and excellent ware for glazes and colouring oxides, being a clay suitable for many applications. Its fine texture makes it ideal for wheel-throwing and modelling. Available in extruded body (moist form).

Firing range*: 1150-1180 ºC/ Cone 3-5
Water content: 21 %
Plasticity (IP Atterberg): 14
Carbonate content (CaCO3): 0 %
Drying shrinkage: 6.3 %
Firing shrinkage 1180 ºC: 6.5 %
Porosity (water absorption) at 1180 ºC: 0.1 %
Dry bending strength: 6.2 N/mm2
Fired bending strength 1180 ºC: 42.7 N/mm2
Thermal coefficient 1150 ºC (25-500 ºC): 65.9x10^-7 ºC^-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 60 ºC/hr heating rate.