BARNARD BLACKBIRD SUBSTITUTE SG758 25lb Bag
10 Pound Bag:Please call 888.774-2529 to order smaller or larger quantities of this Barnard clay substitute.
This is a blend of minerals that closely simulates Barnard (Blackbird) Clay, a widely used clay that contains iron and manganese.
| Typical analysis: | |
| SiO2 | 30.37% |
| Fe2O3 | 26.27% |
| Al2O3 | 20.52% |
| MnO | 8.72% |
| K2O | 1.68% |
| CaO | 0.59% |
| MgO | 1.07% |
| TiO2 | 1.06% |
| NaO | 0.52% |
| LOI | 8.85% |
This material was developed to mimic the effects of Barnard clay when used as a wash or when used in clay body formulations. Though it can be added to glazes as a substitute material, its effects may vary from the original.
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