The trick to tear off the wallpaper

The best way to handle old wallpaper is to strip it and leave it on the wall. Strip the old wallpaper from the wall and the new wallpaper will stick to it more firmly. According to the different types of wallpapers and walls, several treatment methods are introduced:

You can put new wallpaper on the old wallpaper, but this is sometimes not a good idea, because the adhesive will cause the old and new wallpapers to fall off the wall together. In addition, if the old wallpaper at the seam is covered with a new wallpaper, the overlapping imprint will be revealed on the new wallpaper.

If you still want to put a new wallpaper on the old wallpaper because of the situation, you should first smooth the seams, tear off the loose wallpaper strips, and re-attach the loose edges of the old wallpaper to the wall, then Start to post new wallpapers. When laying wallpaper on metal foil or vinyl wallpaper, first polish the shiny area with rough sandpaper, then use a vacuum cleaner to remove the polished dust or directly wipe them off the wall.

If you have decided to strip the old wallpaper first, you can refer to the detailed instructions below:

When removing the peelable wallpaper, pick up the corner of the wallpaper, tear it off the wall, and keep the hand as close as possible to the wall, which minimizes the possibility of tearing the wallpaper.

Peelable wallpaper:

Most peelable wallpapers have a smooth surface and are similar in texture to plastics (including vinyl wallpapers, cloth vinyl wallpapers or cloth-based wallpapers). However, there is only one way to determine if a wallpaper can be peeled off, that is, try to peel it off the wall. Specific steps are as follows:

Step 1: Select an inconspicuous corner at the top of the wall and use the tip of the utility knife to pick up the wallpaper.

Step 2: Try to be close to the wall, pinch the corner of the wallpaper, and try to remove it from the wall. Strip the wallpaper in your direction, making it easier to remove the wallpaper. If it's a peelable wallpaper, the wallpaper will detach from the wall as long as you are strenuous and moderately strong; if the situation is different, it may be a non-peelable wallpaper, you need to use infiltration, steam or dry stripping. However, on gypsum board, avoid infiltration and steam stripping. Water vapor softens the decorative paper and plaster core of the wallboard. At this point you should use the dry stripping method instead.

Cut and infiltrate:

When using this technique, you can use a utility knife, razor blade or wallpaper scraper (a special tool available at the wallpaper store) to cut the old wallpaper horizontally. The spacing between each slit is about 20 or 25 cm, so that warm soapy water or wallpaper stripping agent can penetrate the back of the wallpaper, soften the adhesive, and then you can tear off or scrape the wallpaper from the plaster wall. It is. You can use both solutions with a sponge or sprayer. WARNING: To apply a wallpaper stripper, wear a powdered mask to avoid inhaling chemical gases.

Step 1: Apply water or wallpaper stripper and wait a few minutes for the wallpaper to completely saturate.

Step 2: Repeat the same process on the next wallpaper strip, then return to the first strip and re-wet it from top to bottom with the formulation.

Step 3: Start stripping the wallpaper with a multi-purpose edging knife with a 8.9 cm wide, movable blade. Starting from a cut horizontal wallet, the blade is placed under its upper edge and the blade is at an angle of 30 degrees to the horizontal, and the sliding blade scrapes the wetted wallpaper. A wallpaper that is the same width as the squeegee will fall off the blade and roll onto the squeegee as the blade pushes down.

Step 4: Continue to push down until the wallpaper can no longer be peeled off. If the scraped wallpaper tape breaks, re-infiltrate this area and begin to scrape another tape. If the wall still has significant adhesive traces after repeated infiltration and scraping, another method is needed.

On a wall constructed of plasterboard, use a wallpaper scraper to cut the wallpaper horizontally as described above, but do not wet it. Just scrape it off or tear it off the wall.

One way to remove non-peelable wallpaper is to make some cuts on the wallpaper and soak the wallpaper. Cut a slit every 20 or 25 cm; this way, warm soapy water or wallpaper stripping agent can penetrate the back of the wallpaper and soften the adhesive.

Steam method:

Many tool rental shops and wallpaper stores rent out electric steam engines so you can use them to strip wallpaper. These appliances typically have an electronically heated water tank that is connected by a long hose to a steam engine panel with perforations on the surface. Here's how to use them:

It is not easy to peel off old wallpaper. You can rent a steam engine, but you still need to use a wide-blade putty knife to scrape most of the wallpaper.

Step 1: After the water is hot, press the steam plate on the wall until the wallpaper on the edge of the steam plate becomes dark due to moisture. Start with a strip of paper and gradually peel off the wallpaper from top to bottom.

Step 2: After steaming half of the paper strip, use a nail or a utility knife to pull up the corner of the top of the wallpaper and tear off the wallpaper. If the wallpaper cannot be removed, it can be scraped off with a wall scraper. You may want to steam the same area twice or three times to loosen the adhesive for the longer months of the wallpaper.