Treatment methods of different wall base during wa

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[home decoration network] the quality of grass-roots treatment not only determines whether the construction personnel can successfully install the wallpaper, but also determines the quality of installation and use, as well as the length of time customers use the wallpaper. Doing this job well sometimes wastes time and makes people feel tired. People often fail to see the necessity of this kind of work and hope to construct as soon as possible, resulting in certain construction defects and affecting the appearance

I. treatment of old walls

1. The powdered old walls cannot be directly pasted with wallpaper on the surface

2. Sprinkle water on its surface, and then shovel off the coating layer and powdered layer with a shovel. Note: if you can't shovel the wall, you can use a wallpaper knife to draw small squares like spider webs. The deeper the better, the smaller the squares, the better

3. Brush the interface agent or varnish once after shoveling

4. Level the wall with gypsum or putty (for the wall with large cracks, stick a layer of cloth before puttying)

5. Polish it smooth and brush the base film once after leveling

II. Treatment of hair germ cells

newly built hair germ cells are mostly scraped with waterproof putty, and the base structure is relatively solid without eradication. It is OK to straighten the internal and external corners, polish and brush the base film once. In some southern areas, the hair germ cells are mostly leveled with white cement. This kind of base cannot be directly pasted with velvet fiber wallpaper and metal wallpaper, and it can only be pasted after putty is scraped

III. treatment of concrete and plastered surface

1. The water content of the wall base is not greater than 8%

2. The base course shall be firm, and there shall be no efflorescence, hollowing and looseness. The parts with efflorescence shall be neutralized with 9% acetic acid aqueous solution, and then washed with clean water

3. Holes and cracks shall be scraped with gypsum (white cloth shall be pasted if the cracks are too large)

4. Puttying 2— Grind smooth after 3 times of drying

5. Brush the base film once

IV. treatment of gypsum board surface

1. Dot the self tapping screw cap with antirust paint to prevent rust

2. Use water adjusted gypsum with white emulsion to fill the joints and stare at the eyes

3. After drying, stick bandages on the joints

4. Puttying 2— 3 times. After drying, polish it smooth, flat, and the internal and external corners are smooth and straight

5. Brush the base film once

v. treatment of wood base surface

1. The water content of wood base shall not be greater than 12%

2. The surface of the wood base should be flat and free of dirt, oil and other dirt

3. Brush it thinly with paint to prevent the wood fiber from swelling when encountering water

4. There is a nail cap on the wood surface. First sink the nail cap in the wood surface and paint it with antirust paint

5. Fill the joints with atomic ash. After drying, mix putty with emulsion: water =1:1, and fully scrape 1— Twice

6. Polish it with sandpaper and brush the base film on the surface once (the proportion of base film varies with different putty)

note: the wood surface with smooth, flat surface and water absorption can be pasted with wallpaper after a thin brush of varnish on the surface





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