Onyx Black Porcelain 164-ONYX
Available Product Description
Firing Range: 1200°C-1240°C
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.
Onyx Black Porcelain is suitable for tableware (food-safe), according to ISO 6486.
For more information on this clay, please follow this link: Technical Data
- Texture - 1
- Fired Colour - Black
- % Total Shrinkage at 1100°C - N/A
- % Total Shrinkage at 1200°C - 10.3
Extra Info
- Firing range: Cone 6-7 (2269º-2295ºF)
- Biscuit: Cone 06 (1855ºF)
- 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 (a25-500ºC): 54.3x10-7ºC-1"
Product Specification
Colour
Black
Weight
1000g, 5000g
Customer Reviews
By DeborahMarock on 20th July 2023
"Wonderful to throw with! Beautiful deep onyx black colour once vitrified."
By DeborahMarock on 20th July 2023
"Wonderful to throw with! Beautiful deep onyx black colour once vitrified."
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