1, grassroots treatment, when most people get the house from the developer and start decorating, the first thing is to shovel the wall. There are two reasons, one is that the original wall quality is not up to standard, and the other is that you can't see the internal quality, which is the most taboo of concealed works. Brush the interface agent after shoveling, its main function is to improve the adsorption between the plastering layer and the base, and ensure the construction quality of scraping white.

2. Gypsum filler. The technical term for gypsum filling is gypsum leveling. Play lines on the ceiling or wall and scrape corners with plastering plaster. There are two kinds of plastering gypsum, one is plastering gypsum with full scraping base, and the other is plastering gypsum with full scraping surface. When scraping the base, you need to stick a glass fiber grid cloth. When scraping the surface plaster, just stir it evenly and then fill the surface.

3. Paste kraft paper or bandage. After the plaster is leveled, there are still some details to be dealt with. For example, there is a big gap between two gypsum boards on the wall, even if gypsum is used to fill it, it will crack, so it is necessary to stick kraft paper at the joint between the gypsum board and the wall.