The main processing steps of the grassroots layer of the wallpaper are introduced :
1. Ensure that the water content of the base layer of the wall is below 8%-10%.
2. Before the putty is leveled, the base layer of the wall should be firm, and there should be no pan-alkali, empty drum, and crisp.
3. After removing the deposit on the wall surface, scrape the putty on the base layer 2 to 3 times, polish it with sandpaper, and wipe the surface with gauze.
4, brush the wallpaper base film, the wallpaper base film can be applied after painting the wall surface.
The wallpaper base film is a wall treatment material used when the wallpaper is pasted. In the past, the old construction method used varnish. Now, the wallpaper base film is used. Before the wallpaper is pasted, a layer of wallpaper base film is applied on the wall surface, which can form a dense protective film on the wall to prevent the wall. The water and alkaline substances of the body are extravasated to prevent moisture, mildew and alkali, thus prolonging the service life of the wallpaper. The base film of the wallpaper has stronger adhesion than the varnish, the protective film is fine and firm, anti-aging, powdering, anti-mildew and antibacterial. The base film of the wallpaper is an environmentally friendly product with no irritating odor, formaldehyde-free and environmentally friendly. The base film of the wallpaper dries faster than conventional oil varnishes.
5, in the construction of the wall surface paint, can not directly paste the wallpaper on the wall, shovel the original base layer and then put the putty, brush the wallpaper base film, dry before you can paste.
6. In the construction of the wall of the old wall, the quality of the putty is generally not very good, so the wallpaper cannot be directly pasted and must be processed before it can be pasted. When pasting the wallpaper, all the venues should be cleaned. The doors and windows are closed, and the ambient temperature should not be lower than 10 degrees Celsius. The humidity should not be too large. After the paste is finished, close the door and window for 1 to 3 days, and then completely dry and open the door and window for ventilation.
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