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Sio-2 Clay Black Ice Porcelain (5kg)

BLACK ICE is a black porcelain noted for its beautiful black graphite. It has high plasticity, which makes it ideal for wheel-throwing and modelling. Its formula is very stable and is suitable for tableware (food-safe), according to ISO 6486.
C$29.65
Availability: In stock (80)

BLACK ICE is a black porcelain noted for its beautiful black graphite. It has high plasticity, which makes it ideal for wheel-throwing and modelling. Its formula is very stable and provides a secure firing range between 1200 and 1240ºC (oxidizing atmosphere). Suitable for tableware (food-safe), according to ISO 6486. Available in extruded body (moist form). Presented in a practical 5 kg cylindrical format with double packaging.

  • Firing range: 1200-1240ºC / Cone 6-7
  • Biscuit temperature: 1000ºC / Cone 06
  • Water content: 20%
  • Plasticity (IP Atterberg): 11
  • Carbonate content (CaCO3): 0%
  • Drying shrinkage: 5.4%
  • Firing shrinkage (1220ºC): 10.3%
  • Porosity (water absorption at 1220ºC): 0.0%
  • Dry bending strength: 3.1 N/mm2
  • Fired bending strength (1220ºC): 39.8 N/mm2
  • Thermal coefficient (25-500ºC): 54.3x10^-7ºC^-1

Click here for Safety Data Sheets.

Quantity pricing (quantities may be achieved by mix and matching with any Sio-2 Specialty Clay):

10+      5% off

Brand: SIO-2 
Firing: Ceramic kiln high fire 
Weight/Volume: 5 kg 
Grog: Ungrogged 
State: Moist form (plastic body) 
Stiffness: 4 throwing and modelling

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Note: Protect from Freezing.

25-04-2025 18:42

Overall, a fun clay to work with. If you use too much water while throwing, you get a lot of slip, very fast, so be mindful of that (it's a porcelain, so not unexpected, but can be a change if you're used to throwing with stoneware). If you don't fire hot enough, it is more like a very dark brown than black (I fired to around cone 5.5 based on witness cones, was aiming for cone 6 but my elements were near end of life I think). It does also stain your hands and just about everything else, but would still recommend.

4 stars based on 1 reviews
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