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The two top clay bars contain 15% hydrous borax. At cone 06, a very low temperature, it has already melted and drained out of the bars, running down over the others as a glass.
| Oxides | B2O3 - Boric Oxide |
| Materials |
Borax Decahydrate
|
| Materials |
Borax Pentahydrate
|
| Glossary |
Flux
Fluxes are the reason we can fire clay bodies and glazes in common kilns, they make glazes melt and bodies vitrify at lower temperatures. |
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