Many users of old houses have a long house age. They want to paint again during the Spring Festival. They find it more time-consuming to paint and want to try wallpapers. In actual fact, the wallpaper is not lower than the brush paint, and it is very likely that it will take great efforts to eradicate the original substrate. How to paste the old house wallpaper in the end, we first look at the precautions. Old house paint needs to be tested first For the wallpaper, if the material of the shop is different, the processing method it takes is different. If it is a new house wall wallpaper, the substrate is the simplest. The procedure is the same as the basic wall construction, except that it is not painted, that is, the interface layer is normally brushed in the plastering layer, and then the scraping can be scraped 2-3 times. Then you can carry out other bricklayers, oil workers and other decoration, wait until the completion of the wallpaper on the wall. If the original wall is painted with paint, and you want to refurbish the wall, is it right on top of the wallpaper on the line? For this problem, experts say that if it is the old house wall, you need to make some judgments. If the original paint is tight and there is no shedding, you can brush the base film directly on the top (wallpaper necessary materials, can strengthen the wall surface, increase the wallpaper adhesion, protect the wall when you remove), and directly paving the wallpaper. However, if the original coating is not stable, the original substrate needs to be removed. Plaster base note crack prevention If the original base of the wall is a gypsum board, care must be taken to protect it from moisture. The first step is to place all the self-tapping screws on anti-rust paint to prevent rust from corroding the wallpaper; then, the joints of the gypsum board shall be filled with white latex and gypsum powder to prevent the plaster from cracking. Experts emphasize that gypsum powder is used instead of putty because gypsum powder and gypsum belong to the same material, and the expansion and contraction coefficient are the same. If putty is used, the shrinkage factor is different, and cracking may also occur. In order to ensure that no cracks appear, it is also necessary to apply a bandage to the joints after the gypsum powder is dried. In general, there are currently gauze cloths, kraft paper, and grids. Due to the large gauze gaps in the mesh and weak adhesion, it is rarely used at present. After the patching, the sanding and scraping work is performed again, and then the wallpaper is normally laid again. Empty old wallpaper should be eradicated If the original wall is paved with wallpapers, what should be done? Can the new wallpaper be laid directly on the original wallpaper? This has to be treated separately. In general, because the original substrate is not necessarily dense, it may cause the wallpaper to be affixed and fall off, etc.. Placing the wallpaper directly on the original wallpaper will have a greater risk. All the original wallpapers need to be erased and the above The method of detecting the paint substrate was examined on the substrate to see if it was necessary to further eradicate the putty layer, and the subsequent work was consistent with the “Old House Paint Needs First Testâ€. Of course there are exceptions, if the original paving is a wallpaper of special purity, such as high-purity wood pulp wallpaper, soak the wet towel on the wallpaper, more than 10 minutes later, to see if there is empty drum phenomenon. If there is still no emptying, you can directly paste any wallpaper on it. If there is empty drum, you need to remove all the wallpaper and carry out the next step of substrate inspection and processing. Wooden substrate to prevent deformation If you need to put wallpaper on a wooden board, what should you do? First you need to apply a thin layer of paint on the wooden board to prevent the wood from being deformed by moisture. Where cracks are present, make-up stitches are made using putty instead of gypsum powder. Because the atomic ash has high hardness and high stability, there is no problem of shrinkage and expansion. The next step is to brush putty. Prepare putty with a 1:1 ratio of white latex and water and apply a thin layer. To be as thin as paper, in fact, it is to play a role in filling up the unevenness of the wooden board. The putty layer also needs to be able to stick to the wooden board, and if it is not strong, it will easily cause the wallpaper to fall off. After polishing with sandpaper, a thin layer of paint (either solvent-based or water-based paint) can be used to prevent the wood from deforming and causing problems with the wallpaper. After these tasks are done, normal wallpaper paving can be performed. Second-hand housing decoration notice wallpaper paint paint house new house Skylight Transparent Roof Sheet Skylight Transparent Roof Sheet,Pvc Skylight Transparent Roof Sheet,Corrugated Pvc Roof Sheet,Pvc Transparent Roof Sheets ZHENHAO BUILDING MATERIALS CO.,LTD , https://www.zhpvctile.com
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