Description
GRX20 – The stoneware clay for large projects and Raku
The coarse grog (approx. 40%, 0-3 mm) makes GRX20 the perfect choice for handbuilding, slab techniques, object ceramics, and architectural ceramics. It is ideal for large sculptures, reliefs, and demanding ceramic projects due to its high stability. Despite the grog content, the clay remains malleable and easy to shape.
The high iron oxide content ensures striking glazing effects. Especially in reduction firings, the GRX20 develops a deep black, metallic-shimmering surface, while glazes interact intensely with the clay, leading to fascinating color play.
Due to its coarse structure, this clay is also perfect for the Raku technique. The unglazed surface takes on a distinctive, crusty-metallic appearance. This clay is also ideal for firing large-scale works in a Raku kiln.
Benefits of the GRX20:
- Coarse grog (approx. 40%, 0-3 mm) ensures stability
- Perfect for handbuilding, slab techniques, object ceramics and architectural ceramics
- Intense glazing effects due to its high iron oxide content
- Metallic-black firing color in reduction firings
- Excellent for Raku and large-scale works
The GRX20 allows you to create impressive, durable ceramic works full of character – a clay for limitless creative visions.
Properties
- Addition
- ca. 40% Schamotte 0-3mm
- Category
- Steinzeug
- Drying Shrinkage
- ca. 8%
- Fir. Col. after Rawburn
- rotbraun
- Fir. Col. red. after Glossbur
- schwarz
- Firing Shrinkage
- ca. 4,5% bei 1280°C
- Firing colour (oxidation)
- schwarz
- Glossburn
- 1150 - 1270°C
- Grogged
- yes
- Rawburn
- 980-1020°C
- Suitable for raku
- ja
- Water Absorption
- ca. 4% bei 1270°C
