W 27 / package 10 kg (coarse) Black Stone

Witgert 27 Black Stone (coarse) is a grey stoneware clay with coarse black chamotte (25%) with a grain size of 0,5–2,0 mm. This clay is well suited for building with. Work the surface to bring out the effect of the black chamotte. Fired at 1000–1250 °C.

• Type: Stoneware clay
• Burnt color: Grey-black with black chamotte
• Chamotte content: 25%, with grain size 0,5-2,0 mm 
  
• Burning temperature: 1250°C.
  
• Shrinkage during drying/firing: approx. 4,7% / 4,1% at 1200° C.
• Suitable for: Clay suitable for hand-building, sculpting and the like.
• Packaging: 10kg