How to sand the wall with sandpaper?

The home improvement wall is prone to stains or unevenness. At this time, we can use sandpaper to polish the wall to make the uneven wall smooth again. The method of sanding the wall is:

1. When sanding the wall with sandpaper, you must have complete tools. First, prepare a coarse sandpaper and a fine sandpaper, and then prepare a towel.

2. When sanding the wall, first stick to the wall with coarse sandpaper, and then sand it sideways until the new white is exposed on the wall.

3. Then use the fine sandpaper to sand in the up and down direction, and smooth the marks from the coarse sandpaper.

4. Finally, use a dry towel to wipe off the polished floating layer and dust. In this way, the wall will not have any roughness after polishing, and it will be very smooth.