Description
GECH30F – Coarsely grogged stoneware clay with yellow-beige firing color
The GECH30F is the finely grogged variant of the proven GECH30. With 40% grog content (grains 0–0.5 mm) gives this clay a perfect balance between stability and moldability. It is ideal for handbuilding, slab techniques, smaller objects, and sculptural design and has a pleasant texture and good workability.
In stoneware firings, the GECH30F develops a natural, yellow-beige firing color with a warm appearance. Additionally, the high iron oxide content ensures vibrant and exciting glazing effects, which develop both in oxidation and reduction firings.
Especially in reduction firings, the clay shows a fascinating reddish-yellow-brown color nuance and intense interaction between the glazing and the body. The GECH30F also proves its versatility in Raku firing: the surface takes on a raw, crusty texture in direct flames – perfect for creative experiments and expressive unique pieces.
Benefits of the GECH30F:
- Fine grog (40% 0 – 0,5 mm) for good durability and pleasant moldability
- ideal for handbuilding, slab techniques, and sculptural design
- Natural yellow-beige firing color in stoneware firing
- Vibrant glazing effects due to high iron oxide content
- Reddish yellow-brown tones in reduction firings
- Also suitable for the Raku technique
The GECH30F creates the perfect connection between creative freedom, stable workability, and exciting surface effects – a versatile stoneware clay for ambitious ceramic artists.
Properties
- Addition
- ca. 40% Schamotte 0 - 1.25mm
- Firing colour (oxidation)
- gelbbeige
- Fir. Col. red. after Glossbur
- rötlich-gelbbraun
- Fir. Col. after Rawburn
- lila
- Firing Shrinkage
- ca. 4.5% bei 1280°C
- Suitable for raku
- ja
- Glossburn
- 1150 - 1340°C
- Category
- Steinzeug
- Rawburn
- 1020°C
- Grogged
- yes
- Drying Shrinkage
- ca. 6%
- Water Absorption
- ca. 6% bei 1280°C
