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Basement leakage stoppage: treatment of cracks on walls of old buildings renovated

Hits: 694 May 15, 2019 21:47:56 source: Jiangsu Xinda high altitude Engineering Co., Ltd

News Abstract: basement leakage stoppage analysis: if you want to paste wallpaper, you should first deal with the basic wall surface. The first few steps are the same as painting the wall paint, but there are differences after puttying:

It is necessary to deal with the cracks on the walls of the renovated old buildings and to block the leakage in the basement.
1 Basement plugging Analysis: re emulsion paint
1. Water on the wall: moisten the original wall, saving labor when shoveling.
2. Shovel wall skin: remove the part of the original wall that has been soaked by water, and so on to expose the cement mortar wall or putty layer.
3. Interface agent: the wall surface brush interface agent, brush interface agent must brush completely, and brush evenly.
4. Cracks: generally, kraft paper tape and white emulsion glue will be used to stick the cracks.
5. Paste cloth: generally, non load bearing walls such as light weight walls and thermal insulation walls should be pasted with cloth. Try to choose good quality wall cloth and white latex. If conditions are good, you can choose mesh cloth, which will have better anti cracking effect.
6. Batch scraping putty: it is better to select the putty with higher particle fineness and harder texture, and a certain amount of white latex can be added in the putty to improve the hardness of the putty.
7. Grinding: try to use finer sandpaper, generally soft putty (such as 821) use 400-500 sandpaper, hard texture (such as wall lining, yiguaping) use 360-400 is better, if the sandpaper is too thick, it will leave deep sand marks, paint is not covered. After polishing, the wall must be cleaned thoroughly to avoid too much dust affecting the adhesion of the paint. The concave convex difference is not more than 3 mm.
2、 Analysis of basement leakage stoppage: if you want to paste wallpaper, you should first deal with the base wall surface. The first few steps are the same as painting the wall paint, but there are differences after puttying:
1. Wall putty.
2. In the past, white emulsion adhesive was applied before the wall paper was pasted. However, due to the poor environmental protection of white emulsion, it is no longer needed now. It is basically to brush a layer of base film. If you directly paste wallpaper, the adhesive force is very strong, and direct pasting may pull off the base layer of the wall. If you first brush a layer of base film (or also called wallpaper partner), the base film can seal the wall and prevent water and moisture, Increased adhesion to the wall paper.
3. After brushing the base film, it's OK to paste the wallpaper in a day. Now there are also some wallpaper adhesive inside with the base film components, so that there is no need to brush the base film, putty dry, brush wallpaper glue directly paste wallpaper.

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