Sandblasting of metals
Professional mechanical surface preparation before the final surface treatment.
Sandblasting (grit blasting) is one of the most important technological steps before the application of a protective or decorative layer. It is a mechanical method of surface cleaning using an abrasive medium, to which kinetic energy is supplied by compressed air.
Correctly performed blasting has a fundamental impact on the quality and durability of the subsequent surface treatment.
How does blasting work?
Mechanical removal of impurities and corrosion
The top layer of the material that is damaged, affected by corrosion, or contains undesirable oxides formed during production (rolling, welding, pressing, etc.) is removed.
This reveals a clean, consistent metal substrate suitable for further processing.
Creation of an anchoring profile
Blasting results in controlled surface roughening. This creates a so-called anchoring profile—a microstructure with sharp peaks and shear surfaces that significantly increase the adhesion of the subsequent surface treatment.
This profile prevents the coating from peeling and increases its mechanical resistance.
Creation of an anchoring profile
During the process, the surface heats up slightly, which helps release grease. At the same time, the abrasive medium absorbs impurities and removes them from the surface.
Why is blasting decisive?
Blasting has a direct impact on:
• adhesion of powder coatings
• durability of the protective layer
• corrosion resistance
• overall quality of the final appearance
Without proper mechanical preparation, even the highest quality paint would not achieve the required durability.
What can be blasted?
Blasting is particularly suitable for:
• steel structures
• metal frames and components
• technological equipment
• renovated metal elements affected by rust
• new parts before painting
If necessary, other materials such as stainless steel, aluminum, or other metal alloys can also be treated.
