Blue Porcelain
Upsala is a unique blue porcelain noted for its beautiful cobalt blue. It has high plasticity, which makes it ideal for wheel-throwing and modeling. Its formula is very stable and provides a secure firing range between Cone 6 and Cone 7 (oxidizing atmosphere). Suitable for tableware (food-safe), according to ISO 6486. Available in extruded body (moist form). Supplied in a practical 5 kg cylindrical format with double packaging.
Firing range: Cone 6-7 (2269º-2295ºF)
Biscuit: Cone 06 (1855ºF)
Water content: 21%
Plasticity (IP Atterberg): 11
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.2%
Firing shrinkage at Cone 6: 10.4%
Porosity (water absorption) at Cone 6: 0.0%
Dry bending strength: 3.3 N/mm2
Fired bending strength at Cone 6: 47.2 N/mm2
Thermal coefficient (25-500ºC): 58.3x10^-7ºC^-1
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