In order to prepare the walls for gluing wallpaper, just take the old wallpaper from their surface. Sometimes such surprises are hidden under a layer of old wallpapers that sometimes they can even eliminate them without help will not work.
So, the whole process of preparing walls for repair work should take place in stages. If there were no wallpaper on the walls earlier, then it should be carefully examined its surface. First, it is necessary to remove the wallpaper or other old coating. In this case, it can be an old whitewash or painting. It is removed with a spatula or with ordinary blurry brush with water. Only the walls with a systematic water replacement are blurred. This is the only way, the old whitewash is completely removed. If the wall was previously painted, then in this case you can not do without a spatula. With it, it is necessary to remove all layers of paint, after which the surface of the wall must be spaced with a broom or brush. And, as the last stage, blur with clean water, approximately the same as when blurring the walls after whitewashing.
The second stage in the preparation of the surface for gluing is a thorough examination. If there are small cracks on the wall, they are closed with putty. But, and if there are large recesses or bugrs, then in this case you will have to make some efforts. If there are hillocks on the wall, they are aligned along with the base using sandpaper or a hard brush. If there are recesses, then you need to start the solution and bring the base to a perfectly even state by placing. In this case, you can use a solution prepared from putty or cement mortar. The putty solution is prepared according to the instructions that are on each of its packaging. As for the cement mortar, it is prepared, thus, one for three. This means that three kilograms of sand need to be used per 1 kilogram of cement of the highest brand.
After the recesses are leveled, the repair areas must dry out. And even after completely drying, the surface of the base of the wall must be brought to a perfectly even state using sandpaper. Only after the completion of these works can you begin to glue the walls with wallpaper.
But, and if the walls were previously pasted with wallpaper, then in this case the old coating should also be removed, the walls should be examined, their base is, if necessary, they should be leveled on the same principle as during the preparation of walls, which were without wallpaper. And only after that, proceed to glue them.
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