6-18 · Strontium matte base
Rust Matte
Dark brick brown, dry. Rough to the touch. Vases and outside walls.
- Firing
- Cone 6, 1222 °C
- Atmosphere
- Oxidation, Electric kiln A
- Finish
- Matte
- Colour
- Brown and black
- Food use
- Outside only
- Movement
- Does not move
- Tile body
- Buff stoneware
- Application
- Specific gravity 1.48, dip 3 s
Recipe
Dry weight. Base adds to 100, colourants on top.
| Material | % | Grams | Share |
|---|---|---|---|
| Nepheline syenite | 45 | 450.0 | |
| EPK kaolin | 20 | 200.0 | |
| Silica (325 mesh) | 18 | 180.0 | |
| Strontium carbonate | 15 | 150.0 | |
| Lithium carbonate | 2 | 20.0 | |
| Red iron oxide | 9 | 90.0 | |
| Total | 109 | 1090.0 |
On the tile
- Thin
- Orange rust on ridges.
- Thick
- Dark brick brown, dry.
- Movement
- Does not move.
- Note
- Rough to the touch. Vases and outside walls.
Same base
Strontium matte base, Cone 6. Different colourants.