SIO-2 clay is produced in Spain by Cerámica Collet S.A.
PRAI is a high-fire white body with 40% fine grog (80 Mesh and smaller) formulated specifically for 3D printing. It has excellent drying and firing properties. The ivory-white fired colour provides an excellent base for glazes and colouring oxides. Available in moist form suitable for 3-D printing, vacuum-packed in 5 kg boxes.
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
ACMI AP Seal. Conforms to ASTM D-4236.
(*) The recommended cone range (based on Orton self-supporting cones heated @150ºC/hr) indicates firing conditions that produce optimum technical and safety characteristics. Clay samples shown that are outside the suggested firing range have been included for a broader view and were fired under controlled conditions.