What tips do sandpaper have for polishing walls?

Sanding the wall with sandpaper can make the wall flat. In the process of use, you can use some small skills to make the sandpaper better. The common sandpaper grinding wall skills are:

1. Choose the right sandpaper

If the sandpaper is too thick, it is easy to cause scratches, and if the sandpaper is too fine, it is difficult to smooth it.

2. Selection of grinding time

If you want to polish the wall, then you should pay attention to choose the right time, and use sandpaper to polish and polish the wall. Generally, you should choose to polish the wall within 3 days of scraping the putty batch, especially before the wall becomes white but not dry. At this time, the strength is low and the surface The structure is not firm, and the grinding is relatively labor-saving.

3. Do the corresponding treatment according to the smoothness of grinding

In the process of sanding the wall with sandpaper, if the sanding is smooth and not very difficult to sand, you can continue sanding. If you feel difficult during the sanding process and it is difficult to achieve flatness, you need to change to a low-mesh coarse sandpaper and try again. After sanding, use a fine sandpaper to remove the scratches left by the coarse sandpaper.