| We include in this product category our sintered Al2O3 - SiO2 refractories with an alumina content less then 90%. The service properties of these materials are widely controlled by the mineralogical nature of the main component and of the ceramic bond, whether they are alumina or mullite based. |  |
A short list of our spot light Mullite brands is given in the table below :
| %Al2O3 | % SiO2 | Bulk density | Open porosity | Main components |
| Mullfrax ® EM | 90 | 9 | 2.95 | 17 | Fused alumina |
| MS2R | 87 | 11 | 3.05 | 14 | Fused alumina |
| Mullfrax ® 202 HF | 87 | 12 | 2.80 | 18 | Tabular alumina & Fused mullite |
| AnnaMullit 70 | 75 | 25 | 2.5 | 21 | Synthetic sintered mullite |
| AnnaMullit 83 | 83 | 15 | 2.60 | 23 | Tabular alumina & Fused mullite |
| AnnaMullit 88 | 82 | 17 | 2.75 | 16 | Fused mullite |
| Mullfrax ® 301 HF | 79 | 20.6 | 2.55 | 20 | Fused mullite |
| Mullfrax ® 201 | 78 | 21 | 2.60 | 18 | Fused mullite |
| Mulnorite ® KS 766 | 76 | 24 | 2.40 | 23 | Fused mullite |
| Mulnorite ® KN 176 | 76 | 23 | 2.50 | 18 | Fused mullite |
| MS4 | 72 | 26.5 | 2.50 | 18 | Synthetic sintered mullite |
| Andafrax | 66 | 32 | 2.55 | 16 | Sillimanite |
| MS6 | 61 | 35 | 2.40 | 19 | Sillimanite |
Please contact us for more information on the materials properties and discussion of your specific application and service conditions