Choose the Right Grit

Choose the Right Grit

Selecting the right grit


When it comes to using your blasting tool, the choice of grit size is crucial. Stick to grits within the 0.2mm-0.5mm range to avoid early disappointment. Using incorrect grit sizes can lead to subpar results right from the start.

Our BLSTR sander is designed to perform similarly to a compressor rated at 100L and 10 bar with a blast gun. It’s important to note that the performance of this tool is not comparable to a 95 bar compressor from Atlas Copco. Therefore, removing powder coating from metal surfaces will be just as challenging as using the aforementioned 10 bar compressor.

To get acquainted with the BLSTR sander, we recommend starting on larger surfaces such as painted wood, metal, or even simple cardboard. This will allow you to observe how the beam impacts the surface, providing a better understanding of its capabilities.

All of our demonstration videos are genuine, showcasing what your BLSTR sander can and should achieve. However, keep in mind that various factors will influence the outcome, including the type of old paint used, the number of layers, and the thickness of these layers. See videos here

Additionally, here is another graph illustrating the hardness of different grits—remember, the highest number represents the hardest grit.

WARNING: in the table below also Glass Beads are mentioned, this will not work for the BLSTRSander. BLSTRsander works with abrasive, angular Grit only.

Important: Use only angular abrasive grit (0.2–0.5 mm).
Glass beads or powder-like media will block the system and void the warranty.

Check out the matching accessories and where to buy them here!

Good luck and happy BLSTting!

Support

Frequently asked questions

Everything you need to know about the product and billing.
  • Can I remove paint from wood without sanding?

    Yes. Sandblasting is exactly that: removing paint or varnish from wood without manual sanding. The BLSTR Sander projects abrasive media at high speed onto the surface, stripping the coating without any sanding motion. That is also why it works so well in profiles and ornaments: the abrasive reaches places sandpaper physically cannot.

  • Does sandblasting damage the texture of wood on ornaments?

    It depends on the wood species and the settings. On hardwood with the correct abrasive setting, sandblasting does not affect the shape of the carving. It removes the paint without rounding off the edges. On soft wood (pine, poplar) or delicate veneer, there is a risk of blasting out the grain if you work too long in one spot or start at too high an intensity. Always test on an inconspicuous area first and begin at the lowest setting.

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