Because the putty layer has no adhesion, it can't bear the weight of ceramic tiles, and it is easy to loosen, empty drum and fall off if the shovel is not clean. If you want to stick the wall tiles firmly, you must first shovel the paint on the wall, and then you can stick the tiles. Otherwise, it is easy to fall off, because the whole brick itself has no water absorption, even if there are irregular concave and convex patterns on the back of the tile, it still presents a relatively smooth volume, so it is necessary to brush the back glue to enhance the bonding performance between the tile and the wall sand ash.

In this case, it is necessary to cut the wall or remove the whole wall skin before, re-plug or pat the pulp, and if it is to pat the pulp, it is best to add glue. Well, you can scrape off the paint first, then level the cement, and then you can lay the tiles on the basis of cement leveling. The second is to make some density boards on the wall with that kind of wood, and then you can use glued tiles. You can choose one of two methods.

Because of the glazed surface, you can sprinkle water for health, because the glazed surface is impermeable. Seeing that I don't want to re-post, I want to remedy it. Just buy a thin layer of building glue and fix it with adhesive tape. After confirming that it is dry, gently tear off the tape paper at a small angle. There is no other way. When ceramic tile is laid, the release agent, protective agent, dirt, oil stain and dust on the back of ceramic tile are not cleaned up, which leads to poor bonding effect and low bonding force between ceramic tile and wall surface. These stains hinder the adhesion between adhesive and ceramic tile, or reduce the adhesion.

Generally, there are wallpaper, wall cloth, soft bag, hard bag or decorative board. The disassembly and assembly methods of these materials have certain skills, and brute force cannot be used. For example, wallpaper wallcovering needs to wet the surface layer, so that the wallpaper wallcovering is easy to tear. Scraping shovel to shovel, so there is still some paint, but not much. Finally, use an electric grinder to polish the remaining paint and clean it up. Because the first two polishes and the last one won't get too much paint, the remaining walls will be cleaned up faster.