4.3.2.3 Abrasive Blasting

4.3.2.3 Abrasive Blasting

Abrasive blasting cleans by shooting corundum, aluminium oxide, silicon carbide or other abrasive blasting media at a surface. Systems can work by injector, using the vacuum of a venturi nozzle to draw abrasive particles from a reservoir and shoot them at the surface or by pushing both air and abrasives from the same pressurised reservoir. Blasting systems emit dust, so they are best used in closed, covered and well-ventilated areas. These systems require trained operators and health and safety precautions for use. Figure 87 shows one of the most common surface preparation methods: grit blasting.

Figure 87 Grit blasting used for mechanical surface preparation
Figure 87 Grit blasting used for mechanical surface preparation

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