In this procedure, high-pressure air is used to propel small particles at a surface in order to clean and add a profile to it. The profile is a measure of the overall surface roughness. The harder these particles hit the surface, the faster they can clean the surface and the deeper the profile.
For any painting job, a rough surface is needed for the paint to stick to the item. However, an extremely rough surface can create a problem, making it difficult to make the finish smooth or glossy.
Aside from painting, abrasive blasting can also be used for the following purposes:
- Frosting glass
- Engraving stone, wood, and glass
- Addition of textured surfaces to metals and concrete
- Removal of weak surface concrete portions from precast concrete
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