SPESCOInc. Abrasive Media, Sandblasting Equipment, Parts, and Repairs
| Material | Common Application(s) | Hardness Rating | Density (g/cm3) | Shape | Initial Cost | Reuse Cycles |
|---|---|---|---|---|---|---|
| Aluminum Oxide | Clean, Finish, Deburr, Etch | Mohs 9 | 3.95 | Angular | high | 8 - 10 |
| Ceramic Bead | Clean, Finish, Peen | Mohs 7 - 7.5 | 2 | Rounded | very high | 100+ |
| Coal Slag | Creates heavy to slight profiles; remove rust, mill scale, and coatings | Mohs 6 - 7.5 | 2.7 | Angular | low | 1 - 2 |
| Corn Cob | Remove paint from delicate surfaces | Mohs 2 - 4.5 | 0.8 - 1.2 | Angular | med | 1 - 2 |
| Crushed Glass | Clean; Remove coatings, paint, and rust | Mohs 5.5 - 7 | 2.5 | Angular | low | 1 - 2 |
| Garnet | Clean, Finish, Deburr, Etch | Mohs 7 | 3.5 - 4.3 | Sub-Angular | med | 4 - 5 |
| Glass Bead | Clean, Finish | Mohs 5.5 - 6 | 2.5 | Rounded | high | 6 - 8 |
| Plastic | Remove coatings and paint from delicate surfaces; no anchor pattern | Mohs 3 - 4 | 1.5 | Sub-Angular | high | 6 - 8 |
| Silicon Carbide | Surface prep - hard substrates | Mohs 9 - 10 | 3.2 | Angular | high | 8 - 10 |
| Soda | Clean, Remove paint, de-odor, mold remediation | Mohs 2 - 3.5 | 2.2 | Angular | high | 1 - 2 |
| StarBlast | Clean; Remove coatings, paint, rust, mill scale | Mohs 7 - 7.5 | 3.7 - 3.9 | Sub-Angular | med | 4 - 5 |
| Steel Grit | Remove heavy scale | Mohs ~8 RC 42 - 62 |
7.3 | Angular | high | 100+ |
| Steel Shot | Clean, Peen | Mohs ~8 RC 42 - 50 |
7 | Rounded | high | 100+ |
| Walnut Shells | Clean and Deburr; no anchor pattern | Mohs 3 - 4 | 1.2 - 1.4 | Angular | med | 4 - 5 |