Grit blasting is a versatile and cost-effective surface preparation method. It is used to clean and restore machinery and metal surfaces of all sizes, from small plant to large turbines. The sharp, abrasive particles used in grit blasting effectively strip metal surfaces of mill scale and rust, as well as grease, paint particles, dirt, chemicals and other contaminants.
Grit Blasting
- Removes rust and contaminants from surfaces
- Reduces corrosion by removing soluble salts
- Improves paint, lining and coating adhesion
- Increases the service life of machinery and industrial equipment
- Prepares machinery for non-destructive testing (NDT)
Grit blasting is widely used in the power generation sector for NDT preparation, and by businesses in other sectors as a surface preparation technique prior to application of subsequent paints, coatings or linings. It is also used by some contractors to remove graffiti and renovate buildings by cleaning delicate stone surfaces.
Here are a few industries you may not be aware use abrasive grit blasting in their operations:
1) Clothing Industry
As unlikely as it may seem, some fabrics and textiles are blasted before they can be sold. For instance, grit-blasting is performed on denim jeans to give them the worn-out look which makes them so fashionable.
2) Petroleum & Gas Industry
In the oil and gas industry, tanks, pumps, and other equipment require constant maintenance which often involves the use of blasting to keep them in prime working condition.
3) Transport Industry
In the transport industry, there are numerous surfaces which require abrasive grit blasting. In airports, for example, the portable machines used in the airport tracks require grit blasting to remove rubber residues and for roughness restitution. Grit blasting is also an effective way of removing old paint residues from vehicles before repainting.
The wagon surfaces of trains also require blasting to remove fuel and dirt residues before they can be painted. Motorbikes, bicycle frames and car frames are also often grit blasted before painting.
4) Glass Manufacturing Industry
Grit blasting can enhance the aesthetic value of commercial glassware, where it can be used to etch patterns or give them a frosty appearance. For windowpanes and commercial glass products, grit blasting can compact and strengthen the surface, while imparting better insulating properties. Some blast media can be used to polish glass surfaces, decreasing their opacity and giving them a bright appearance.
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