Ceramic body 391 is a leather to cork coloured firing stoneware quality with 20 % chamotte 0 – 0.2 mm. The recommended firing range is 1000 °C – 1240 °C. The plastic body is suitable for building-up smaller pieces and for throwing of larger pieces on the potter’s wheel. The warm firing colour of the fired body shows to advantage unglazed.
Characteristics of Ceramic body 0391
| Firing colour | leather | ||
| Firing range (°C) | 1000 - 1240 | ||
| Chamotte portion (%) | 20 | ||
| Chamotte grain size (mm) | 0 - 0,2 | ||
| DS (%)* | 7 | ||
| Firing shrinkage | 1140 °C - 5% | 1200 °C - 6% | 1240 °C - 7% |
| Water absorption | 1140 °C - 6% | 1200 °C - 3% | 1240 °C - 1% |
| CTE x 10 -7 °C -1 | 20 °C - 500 °C (1240 °C) | 62 | |
| Applications | Throwing, Modelling, Pressing/ Punching | ||
| Note | * DS = Dry shrinkage at 110°C |