Wall surface requirements when wallpaper is pasted

At present, the home decoration has used a lot of wallpaper. Before the construction of the wallpaper, if the wall has been over-exposed, it is best to use a fungicide for special treatment to kill mold; if the other side of the wallpaper is a bathroom, the bathroom interior wall must be used. The waterproofing agent is specially treated, otherwise the wall will be damp for a long time and the wallpaper glue will be invalidated.

Before the wallpaper is applied, the wall treatment must be smooth and clean. If there are irregularities or cracks on the wall surface, use a blade to remove it, and use a putty to smooth it. After drying, use sandpaper to polish it. When it is used for large-area wall treatment, it is best to use old powder and cooked rubber powder to make the wall firmer. Small area For example, when filling the seam, use gypsum powder and add some oil to make putty. The best way to do this is to brush the wall up to two times to varnish, to do wall protection and to protect against moisture. After drying, use sandpaper to polish it gently. Do not brush more oil. This will cause the wall to be too smooth, which will make the wallpaper not stick well and shrink during the drying process to produce seams!

First, the main process of plasterboard surface wallpaper

Cleaning, filling gaps, sanding sanding - seams at the seams - looking for putty, sanding sanding - brushing the bottom of the glue - wall marking line - wallpaper brush adhesive - base layer brush adhesive - wallpaper paste - Patchwork, lap joint, and flower---pressure adhesive and air bubble--cleaning the extruded glue--cleaning and trimming

Second, the wall treatment before the paste wallpaper

1. The wall surface must be treated before the wallpaper is pasted. The wall surface treatment is to make the wall surface smooth and dry, dry and crack-free, and solid and free of dust.

2, cement brick wall If the wall surface is relatively flat, use putty to level, brush a thin varnish to dry out after you can paste the wallpaper. There are seams on the surface of the gypsum board, the splint and the board, so the seam should be filled first and then the ash should be added.

3, varnish and seal primer function is to cure and protect the surface of the putty, can also strengthen the anti-alkali function of the wallpaper. Painting should be carried out after the putty is completely dry.

4. The wall treatment of the paste wallpaper is almost the same as the wall treatment of the paint, so the paint wall is suitable for changing the wallpaper, but it needs to be sanded.

Third, the construction requirements of the paste wallpaper

Before the wallpaper is pasted, the quality of the base treatment shall meet the following requirements in accordance with the National Standard for the Acceptance of Quality of Building Decoration Engineering (GB50210-2001) of the People's Republic of China:

1. The old wall should be cleaned of the loose old decoration layer before painting the wallpaper, and the interface agent should be painted; the concrete or plaster base wall of the new building should be coated with an alkali-resistant primer before the putty is scraped.

2, the surface color of the base layer should be consistent. The moisture content of the concrete or plaster base shall not exceed 8%; the moisture content of the wood base shall not exceed 12%. The flatness of the surface of the base layer, the verticality of the façade and the yin and yang angles should meet the requirements of the advanced plastering of the "Code for the Acceptance of Quality of Building Decoration Engineering".

3. Apply a seal coat to the base layer before painting the wallpaper. The bonding strength of the base layer putty should be flat, firm, firm, non-powdered, peeling and cracked putty should meet the requirements of "Building Interior Putty".

4. Finally, don't forget to consider the environmental protection problem of using wallpaper glue.