Powerblast LS staurolite
Opta Minerals your source for Blast Cleaning Abrasives:
Powerblast LS is a staurolite containing less than 1% crystalline silica. It’s hardness and fine grain size make it ideal for new steel and mill scale removal, or any general blasting application with low to average surface profile requirements.
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Advantages of Powerblast LS staurolite
- High productivity (cleaning speed)
- Recyclable
- Superior white metal finish
- Low-dusting
- Non-hygroscopic
- Crystalline silica levels are less than 1%
Available Sizes and Profiles:
| Size | Profile |
|---|---|
| LS | 1.0 - 2.7 Mil |
Technical Specifications
| Symbol | Name | Percentage |
|---|---|---|
| Al2O3 | (Aluminum Oxide) | 36 - 46% |
| Fe2O3 | (Iron Oxide) | 14 - 18% |
| SiO2 | (Silicon Dioxide - Total) | 22 – 27% |
| TiO2 | (Titanium Dioxide) | 5 - 16% |
| ZrO2 | (Zirconium Dioxide) | 4 - 8% |
Characteristics
| Colour: | Dark reddish brown |
| Bulk Density: | ~130 lbs/ft3 |
| Specific Gravity: | 3.7 – 3.8 |
| Grain Shape: | Sub-angular |
| Solubility: | Insoluble |
| Hardness: | 7 – 7.5 Mohs (see our hardness index) |
Typical Gradation:

Packaging:
- 55 lb bags, 56 bags/pallet
- 3000 lb Super Sacs
- Bulk (blower truck or rail hopper cars)

