Application areas - horizontal
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Application areas - vertical
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Ideal for steel surface preparation
Blastrac steel blasting systems are very effective methods of removing paint, coatings, non-skid and other contaminants from steel surfaces. Blastrac steel blasting systems use steel shot or a mixture of angular steel grit and steel shot, allowing the operator to achieve a wide range of anchor patterns (surface profiles) and roughness needed for almost any type of coating application.
By reusing the abrasives the closed circuit shot blasting machines is a resource-smart solution. Also no valuable water is used and wasted and no chemicals are used that endanger the environment.
Recommended dust collectors
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| Brush-off | Commercial | Near white metal |
White metal |
|
|---|---|---|---|---|
| ISO 8501-1 | SA 1 | SA 2 | SA 2 1/2 | SA 3 |
| SSPC | SP 7 | SP 6 | SP 10 | SP 5 |
Surface cleanliness
There are two main international standards regarding steel surface cleanliness: the ISO Standard and the SSPC Standard.
ISO 8501-1 standards
It is a visual assessment relating to surface cleanliness. A number of preparation grades and the degree of cleaning are specified. The preparation grades are defined by written descriptions of the surface appearance after the cleaning operation, together with representative photographic examples.
SSPC standards
The SSPC (Society for Protective Coatings) Standards are used for specifying the degree of cleanliness of steel surfaces. SSPC has standard definitions and photographs for common methods of cleaning.
Surface roughness
The surface roughness of the steel surface is important to ensure a good adhesion of the coatings (set by an ISO standard). It is measured in microns and it shows the difference between the peaks and troughs in a steel surface. It is important because it will also affect the amount of paint to be used. With Blastrac closed circuit steel blasting machines, it is possible to easily achieve any roughness profiles by adjusting the abrasive mixture and speed of the machine.