Home decoration walls are prone to stains or unevenness. At this point, we can use sandpaper to polish the walls to make them smooth from scratch. The method of sandpaper polishing the walls is:


1. When sanding the wall with sandpaper, make sure everything is complete. First, prepare a piece of coarse sandpaper and a piece of fine sandpaper (preferably a sandpaper holder), and then prepare a towel.


2. When polishing the wall, first use coarse sandpaper to stick it to the wall, and then polish it horizontally to the left and right until a new white color appears on the wall.


3. Then use fine sandpaper to polish in the upward and downward directions, and smooth the marks left by the coarse sandpaper.


4. Finally, use a thousand towels to wipe off the floating layer and dust that has been polished. This way, the wall will not have any roughness and will be very smooth after polishing.


During the use process, some small techniques can be used to improve the sanding effect of sandpaper. These common sandpaper wall polishing techniques should be noted:


1. When sanding the wall, avoid wetting the sandpaper and allow it to be polished in a dry state.


2. Use sandpaper to polish, not just a single piece of sandpaper, but a combination of coarse and fine sandpaper.


3. The direction of sandpaper polishing should be noted. Grinding up and down is to remove polishing scratches, and polishing left and right is to remove stains. Do not use it incorrectly.