PRAI 3D white stoneware 5kg

The popular PRAI, high fire white body with 40% impalpable grog (up to 80 Mesh) adapted for 3D printing. Its particular white ivory colour after firing is much appreciated and provides an excellent ware for glazes and colouring oxides. Besides, its characteristics offer an excellent behaviour during drying and firing. Available in extruded body with the ideal humidity for 3D printing. Presented in a practical cylindrical format with double packaging. 

Firing range*: 1240-1300ºC / Cone 6-10
Biscuit temperature: 1000ºC / Cone 06
Water content: 22%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 0%
Drying shrinkage: 8% approx
Firing shrinkage 1300ºC: 7.0%
Porosity (water absorption) 1300ºC: 0.0%
Dry bending strength: 3.0 N/mm2
Fired bending strength 1300ºC: 51.0 N/mm2
Thermal coefficient 1250ºC (25-500ºC): 60.4x10-7ºC-1

Available in the United States and Canada. ACMI AP Seal. Conforms to ASTM D-4236.

(*) 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.