164-ONYX – Onyx Black Porcelain
Recommended firing range 1200-1240C / Cone 5-6
Indicative texture 1 (Smooth 1-Coarse 10).
Onyx Black Porcelain takes on a beautiful black/graphite colour when fired as recommended to the upper part of its firing range.
It is highly plastic making it ideal for wheel-throwing and modelling alike.
Suitable for tableware.
Supplied in a 5kg pack.
Compatible with Aneto Porcelain 164-ANET.
Onyx Black Porcelain is suitable for tableware (food-safe), according to ISO 6486.
The manufacturer recommends zinc-free clear glaze such as Mayco SW-004 for Onyx Black Porcelain.
SIO2 Technical Data:
Biscuit: Cone 06 (1020ºc)
Water content: 20%
Plasticity (IP Atterberg): 11
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.4%
Firing shrinkage at Cone 6: 10.3%
Porosity (water absorption) at Cone 6: 0.0%
Dry bending strength: 3.1 N/mm2
Fired bending strength at Cone 6: 39.8 N/mm2
Thermal coefficient (at 25-500ºC): 54.3×10-7ºC-1″
