Sandblasting / Abrasive Blasting Sand
Sandblasting sand is an abrasive material used to strip paint, rust and residue from ships, steel structures and metal surfaces. In abrasive blasting and surface preparation, the grain hardness, cleanliness and fraction control of the sand determine the speed and outcome of the job. High-SiO₂, Mohs 7 hardness, dust-free silica sand delivers effective abrasion in metal surface preparation; typically 60–100 AFS fractions are preferred.
How to Choose Sandblasting Sand
The criteria that define sandblasting sand are clear. Grain hardness directly affects abrasive power; Mohs 7 hardness silica sand cleans surfaces effectively. Fraction selection determines the surface profile and processing speed: finer sand gives a smoother surface and precise cleaning, while coarser sand delivers fast results on thick residue and large surfaces. A low dust content is important for visibility and efficiency during the process; dust-free sand provides a cleaner working environment. It is essential to use appropriate personal protective equipment and ventilation during application.
Recommended Fractions for Sandblasting
For general metal surface preparation the 60–70 AFS (0.1–0.3 mm) fraction is used, while the 80–100 AFS fraction is used for finer, more precise cleaning work. We can determine the right fraction together, based on the type of job and the desired surface profile.
About Sandblasting / Abrasive Blasting Sand
Which fraction is used for sandblasting?
The 60–100 AFS range is generally used. Finer fractions are preferred for precise, smooth cleaning, while coarser fractions are preferred for large surfaces and thick residue.
Why should sandblasting sand be dust-free?
A low dust content improves visibility and efficiency during the process and provides a cleaner working environment.
Is the hardness of silica sufficient for sandblasting?
Mohs 7 hardness silica sand is an effective abrasive for removing paint and rust from metal surfaces.
What should be considered during sandblasting?
When using abrasive sand, it is essential to provide appropriate personal protective equipment and ventilation.
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