| Chemical analysis |
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| % | Typical | Guaranteed |
| Al2O3 | 44,76 | min. 44,0 |
| SiO2 | 49,89 | – |
| Fe2O3 | 1,25 | max. 1,5 |
| TiO2 | 3,01 | – |
| CaO | 0,22 | – |
| MgO | 0,21 | – |
| Na2O | 0,10 | max. 0,35 |
| K2O | 0,09 | |
| Physical properties |
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| Typical | Guaranteed | ||
| Bulk density | 2,62 | 2,55 | g/cm3 |
| Water absorption | 1,53 | – | % |
| Apparent porosity | 4 | – | % |