What grit sandpaper to use on concrete floors?

Release Date:2023-04-19 10:31
When it comes to concrete floors, sanding is an important part of the process, whether it’s for preparing the surface for a new coat of paint, leveling out uneven areas, or simply removing stains and imperfections. However, choosing the right grit sandpaper for the job is crucial in achieving a smooth, polished finish. So what grit sandpaper should you use on concrete floors?

Typically, for concrete floors, it’s recommended to start with a coarse grit sandpaper such as 30-40 grit to remove any rough areas or bumps on the surface. This will help level out the concrete and prepare it for finer grit sandpaper.

After the rough areas have been smoothed out, move on to a medium grit sandpaper such as 60-80 grit to remove any visible scratches left behind by the coarse grit sandpaper. This will also help to further level out the surface of the concrete.

What grit sandpaper to use on concrete floors

Once the surface has been leveled out and smoothed, it’s time to move on to fine-grit sandpaper such as 120-150 grit. This will create a polished finish and remove any remaining scratches or imperfections on the surface.

It’s important to note that when sanding concrete floors, it’s recommended to use a floor buffer or polisher rather than sandpaper sheets, as this will help to cover larger surface areas more efficiently. Additionally, using a wet sanding technique can help prevent dust and debris from becoming airborne during the sanding process.

In conclusion, when sanding concrete floors, it’s recommended to start with coarse grit sandpaper such as 30-40 grit and gradually move to finer grit sandpaper such as 60-80 grit and 120-150 grit to achieve a smooth and polished finish. Using a floor buffer or polisher and a wet sanding technique can also help make the process more efficient and reduce the amount of dust and debris produced.
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