PB traditional white 12.5kg

Traditional white earthenware clay. High whiteness in oxidising atmosphere. It is very suitable for the use of traditional pottery glazes and colouring oxides. High fired bending strength. Available in extruded body (moist form), being suitable for wheel-throwing, shaping and modelling.

Firing range (biscuit): 1050-1080ºC/ Cone 05-03
Water content (throwing): 22%
Plasticity (IP Atterberg): 14
Carbonate content (CaCO3): 14%
Drying shrinkage: 5.1%
Firing shrinkage (1050ºC): 0.8%
Porosity (water absorption at 1050ºC): 12.1%
Dry bending strength: 6.8 N/mm2
Fired bending strength (1050ºC): 32.2 N/mm2
Thermal coefficient (25-500ºC): 79.8x10^-7ºC^-1