White Aluminium Oxide has the characteristics of high hardness (second hardest mineral after
diamond), sharpness, tenacity, stable chemical property, heat resisting and corrosion resisting. This sharp angular abrasive is fast cutting and is silica free.
It is the most widely used abrasive in blast finishing and surface preparation because of its cost, longevity and hardness. Harder than other commonly used blasting materials, white aluminium oxide grains penetrate and cut even the hardest metals and sintered carbide.
Applications:
White aluminium oxide blasting media has a wide variety of applications, including cleaning engine heads, valves, pistons and turbine blades in the aircraft and automotive industries. White aluminum oxide is also an excellent choice for preparing a hard surface for painting.
High quality applications where no contamination can be tolerated, makes it ideal for blasting of materials such as stainless steel, titanium, lead crystal glassware and other materials where surface cleanliness is imperative.
White aluminium oxide is a 99.5% ultra pure grade of blasting media. White aluminium oxide is increasingly being used in critical, high-performance microdermabrasion equipment.
The purity of this media along with the variety of grit sizes available make it ideal for both traditional microdermabrasion processes as well as high-quality exfoliating creams.
White Aluminium Oxide has white color and a little higher hardness and toughness slightly lower comparing to Brown Aluminium Oxide.
Typical Analysis
| Substance | Chemical Formula | CAS No | EC No |
Typical Content (%) |
| Aluminium Oxide | Al2O3 | 1344-28 | 215-691-6 | 99.36 % |
| Silicon Dioxide (amorphous) | SiO2 (not free) | 7631-86-9 | 231-545-4 | 0.02 % |
| Iron Oxide | Fe2O3 | 1309-37-1 | 215-168-2 | 0.03 % |
Size
White Aluminium Oxide is graded to ANSI Standards Table 2 or 3 or FEPA sized P or F.
|
GRADE (Mesh) |
MICRONS | mm | GRADE (Mesh) | MICRONS |
mm |
|
| 8 | 2360 | 0.560 | 80 | 180 | 0.125 | |
| 10 | 2000 | 0.500 | 90 | 166 | 0.100 | |
| 12 | 1700 | 0.450 | 100 | 150 | 0.090 | |
| 14 | 1400 | 0.400 | 120 | 125 | 0.071 | |
| 16 | 1180 | 0.400 | 150 | 100 | 0.063 | |
| 20 | 850 | 0.315 | 180 | 83 | 0.056 | |
| 24 | 740 | 0.280 | 220 | 68 | 0.050 | |
| 30 | 600 | 0.250 | 240 | 60 | 0.045 | |
| 36 | 480 | 0.225 | 320 | 45 | 0.038 | |
| 40 | 425 | 0.160 | 400 | 38 | 0.030 | |
| 46 | 326 | 0.160 | 500 | 28 | 0.025 | |
| 60 | 250 | 0.125 |
Grain size comparison – White Alumunium Oxide
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