It seems that laying wallpaper is relatively simple. However, many people have noticed various problems after doing it themselves. For example, the corners will lift up, the seams will become obvious, and it won't take long for the wallpaper to become moldy and fall off.
In fact, most of these troubles can be avoided before paving.
Just by clarifying the aspects related to wall treatment, understanding the key points related to glue selection, and mastering the key points about construction techniques, only in this way can ordinary families be able to post walls with professional effects.
The following is a step-by-step explanation of the experience accumulated over the years.
Wall treatment is more important than choosing wallpaper
Many people spend their energy on choosing colors, but ignore the condition of the wall itself.
Actually, Wall flatness and degree of dryness Directly determines how long the wallpaper can be used.
1. Before paving, use a two-meter-long ruler to check the wall surface. 2. For those places where the gaps in the wall exceed 3 mm, you must use leveling putty to repair them.
If there are any loose powder or hollows on the old wall, it must be removed and the base layer must be redone.
After the polishing is completed, touch it with the palm of your hand. If there is no obvious graininess, it is considered qualified.
Then brush basement membrane or sealing primer .
This step cannot be omitted as it can lock in the alkaline substances and residual moisture on the wall.
Complete the brushing operation first, then wait for 24 hours, and then use a hygrometer to test. Only when the moisture content of the wall is less than 8% can you start applying it.
If it is a basement or first floor, it is recommended to paint it twice first Anti-mildew and anti-alkali coating .
Many wallpapers are blackened and blistered. The fundamental reason is that the wall was rushed before it was completely dry.
If you choose the wrong glue, you will be in trouble later.
Wallpaper glue is directly related to environmental protection and firmness.
Currently the mainstream in the market is Glutinous rice glue and Barrel glue .
Glutinous rice glue is mainly made of plant starch and has a high environmental protection level, making it suitable for family bedrooms and living rooms.
Bucket adhesive has stronger adhesion and is suitable for non-woven fabrics or heavy wallpapers.
When purchasing, you should pay close attention to the "Ten Ring Certification" logo printed on the package, then open it and smell it closely. Glutinous rice glue that meets the standard will only emit a faint smell of flour. If it is pungent or has a sour smell, then do not buy it.
To prepare glue, follow the proportions shown in the instructions. First pour the glue powder, then slowly add water, and stir while pouring the water.
When the stirring rod is lifted up, the glue can pull out filaments with a length of 10 cm without breaking. In this case, the concentration is just right.
It's too thin to stick, too thick to be scraped off.
After mixing, let it sit for 15 minutes to allow the rubber powder to fully absorb water and expand.
Be careful not to mix too much at one time. In summer, it needs to be used up within two hours, and in winter, it must be used up within four hours, because if the time is too long, the glue will become thin and ineffective.
The paving technique determines the final effect
The formal wallpapering starts from the corner.
Start by playing a vertical reference line on the wall, aligning the edge of the first wallpaper with this line.
Use a long-haired roller to evenly apply glue on the back of the wallpaper, leaving 1 cm of glue on the edge to prevent the front of the wallpaper from being stained when squeezing out glue.
After applying the pattern, fold it in half to suffocate the glue. For non-woven wallpaper, it needs to be suffocated for 5 minutes, while for pure paper wallpaper, it needs to be suffocated for 8 minutes, so that the wallpaper can be fully softened.
When using the pressure wheel or scraper to go up the wall, drive away the air bubbles from the center to the surroundings. The force should be kept even. Each time you scrape, overlap one-third of the last stroke.
When you come across the switch socket, you must first paste the entire piece, then cut a cross-shaped opening along the edge of the panel, and then insert the excess part.
After every two or three sheets, use a wet towel to wipe off the excess glue squeezed out from the seams.
If it is not wiped in time, the glue will become shiny after drying, which is very ugly.
Different wallpapers for different rooms
It is suitable to use light-colored pure paper wallpapers or matte non-woven fabrics in the bedroom. Colors such as beige and light gray will not be dazzling and will help you relax and fall asleep.
Living rooms with good lighting can choose dark colors or Damascus patterns, which will look grand and stable. Living rooms with average lighting should choose bright and light colors to enhance the brightness of the space.
It is more appropriate to choose washable PVC wallpaper for the children's room. Even if the child doodles, it can be erased. As for patterns, you can choose types such as starry sky, animals or maps, which can stimulate children's imagination.
If you plan to paste wallpaper in the dry areas of the bathroom and kitchen, you must choose a waterproof type. After the wallpaper is pasted and dried, a circle of transparent glass glue should be applied to the joints to seal it.
However, to be honest, these two places are in a humid state all year round. Relatively speaking, it is more recommended to use ceramic tiles or waterproof paint for treatment, and wallpaper is not the most suitable choice.
There are three key areas to check during acceptance:
After everything is pasted, close the windows and let it dry naturally for three days. During this period, you must not open the windows to allow air to circulate, otherwise the wallpaper will shrink too quickly and it will easily cause cracks.
When checking and accepting, look at it from a distance of 1.5 meters from the wall. The color of the joints is consistent, and there are no obvious traces of overlap.
Press the seams with your hands so they don't lift.
Hold a flashlight against the wall and see that there are no bulges or wavy lines.
If you find a problem, while the wallpaper is still wet, gently lift it up and reattach it.
Wallpaper will tear easily once it is completely dry before moving on.
Perform basic treatment on the wall to make it meet the corresponding standards, select the correct glue, and accurately master the technical points of scraping and exhausting. In this way, even non-professionals can lay wallpaper with smooth and stable characteristics. In fact, wallpaper laying is not as complicated as people think.
Keep in mind the most critical point, drying the wall thoroughly is more important than anything else. Don't sacrifice quality in a hurry to meet the construction deadline.
When choosing wallpaper, don't just look at the matching of pattern, material and practical space, so that it can be both beautiful and worry-free.
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