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Two Main Material Compositions.
| QUALITY | WT. % | WT. % | WT. % | WT. % | WT. % | PHYSICAL | PHYSICAL |
| Al₂O₃ | SiO₂ | Ca/MgO | Fe₂O₃ | Na/K₂O | BULK DENSITY (g / cm³) | APPARENT POROSITY (%) | |
| Silica FS70S | 31 | 67 | 0.2 | 0.3 | 0.9 | 2.15 | 17.0 |
| Alumina AL68S | 68 | 31 | <0.1 | <0.1 | 0.1 | 2.59 | 18.0 |
While Capital primarily uses the two materials in the chart above, we are open to discuss developing new materials to better suit your process needs.
