Opta Waive
Opta Minerals Blast Cleaning Abrasives

Aluminum Oxide

Aluminum Oxide is the second-hardest mineral after diamond. Opta Minerals distributes brown Aluminum Oxide produced by fusing bauxite and anthracite in an electric arc furnace at high temperature.The resulting Oxide is over 92% Al203. Its high density and angular sharpness make it one of the fastest, most versatile and economical cutting abrasives available. Aluminum Oxide is used in both dry- and wet-blasting applications for cleaning, deburring, etching and finishing.

Opta Minerals offers a wide range of grades to meet the particular needs of your applications, from a coarse profile to a micro finish.

Aluminum Oxide Brown

Advantages of Aluminum Oxide

  • Wide range of grades available for different jobs and profiles
  • Non-reactant – will not interfere with your coatings
  • The high percentage of TiO2 (1-4%) shows the toughness of the product, which results in longer cutting life, more circulations before breaking down and increased cost effectiveness
  • No detectable “crystalline silica”

Available Sizes:

Grit No Micron
8 2800 - 2360
10 2360 - 2000
12 2000 - 1700
14 1700 - 1400
16 1400 - 1180
20 1180 - 1000
24 1000 - 850
30 850 - 710
36 710 - 600
40 600 - 500
46 425 - 355
54 355 - 300
60 300 - 250
70 250 - 212
80 212 - 180
90 180 - 150
100 150 - 125
120 125 - 106
150 106 - 75
180 90 - 63
220 75 - 53

Technical Specifications

Symbol Name Percentage
Al2O3 (Aluminum Oxide) 92.0 - 96.5
TiO2 (Titanium Dioxide) 1.0 - 4.0
Fe2O3 (Iron Oxide) 0.1 - 1.5
SiO2 (Silicon Dioxide – Amorphous) 0.15%
Less than 1.0% impurities and other trace elements.

Characteristics

Colour: Brown
Bulk Density: 115-125 lb/ft3
Specific Gravity: 3.9
Grain Shape: Angular/sharp
Solubility: Insoluble
Hardness: 9 Mohs (see our hardness index)

Packaging

50 lb. paper bags, 40 bags/pallet

MSDS

Aluminum Oxide MSDS

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