White Fused Alumina as an additive for scratch and abrasion resistance in paints, for the abrasive and refractory industry, as well as an iron-free fine abrasive in the aluminum, optics and dental industries.
Also available as coated quality EK-SIL .
| F 230 - F 240 | F 280 - F 360 | F 400 - F 600 | F 800 - F 1200 | |
| Al2O3 | 99,30 | 99,05 | 98,79 | 98,54 |
| SiO2 | 0,02 | 0,03 | 0,12 | 0,12 |
| Fe2O3 | 0,05 | 0,06 | 0,08 | 0,09 |
| TiO2 | 0,01 | 0,01 | 0,01 | 0,01 |
| CaO+MgO | 0,05 | 0,05 | 0,07 | 0,11 |
| Na2O | 0,46 | 0,74 | 0,81 | 1,02 |
| Loss of ignition(1025°C) | -0,10 | -0,14 | -0,23 | -0,43 |
| Colour | White |
| Spec. gravity | 3,9 g/cm³ |
| Hardness | Mohs 9 |
| Grain shape | ngular-cubic |
| Melting point | ca. 2040 °C |
| FEPA Nr. | d3 | d50 | d94 |
| F 230 | <82 | 50,0-56,0 | >34 |
| F 240 | <70 | 42,5-46,5 | >28 |
| F 280 | <59 | 35,0-38,0 | >22 |
| F 320 | <49 | 27,7-30,7 | >16,5 |
| F360 | <40 | 21,3-24,3 | >12 |
| FEPA Nr. | d3 | d50 | d94 |
| F400 | 32 | 17,3 | 8 μm |
| F500 | 25 | 12,8 | 5 μm |
| F600 | 19 | 9,3 | 3 μm |
| F800 | 14 | 6,5 | 2 μm |
| F1000 | 10 | 4,5 | 1 μm |
| Ds3 | Ds50 | Ds80 | |
| F1200 | 7 | 3,0 | 1 μm |
