What causes the wall to peel? How to deal with wall peeling?

For example, I have a friend who rented a house, and at first I saw that the wall was still white and clean, but it didn't take long to move in, and the white wall began to peel, and the cement wall was exposedEasy repair quick installation

The reason why the white walls are peeling

1.The quality of the latex paint on the wall itself, now there are more latex paint brands on the market, and the quality is also uneven.

2. When the painter paints the wall, he starts to brush the latex paint when the putty is not dry, which will also cause the white wall to peel off in the later stage, and even the wall is not polished and smooth, and the improper construction sequence is easy to cause the white wall to peel;

3. In the summer construction, the latex paint is in a humid environment for a long time, resulting in the excess moisture of the latex paint, when the wind blows or the weather is dry, the temperature is too high and the water-soluble salt crystals cause cracking on the surface of the wall, and the latex paint will shrink and tighten, resulting in the white wall peeling;

4. Another reason is that the decoration time of the old house is too long, and the wall is damp or there is water leakage in the home, which will also cause the white wall to peel.

If the white wall peels off if the latex paint peels off slightly, then you can apply some toothpaste to the peeling place on the wall, and then apply the toothpaste evenly, let it stand for a few minutes and wait for the toothpaste to dry; If the peeling of the white wall is not serious, but there is only a local peeling situation, you can remove the surrounding wall surface, and then smooth it with sandpaper, and then scrape putty and paint it; If the white wall peeling is more serious and has fallen off in a large area, it is recommended to completely eradicate the old wall skin, repair and level the base layer, and re-carry out the latex paint construction.

The above is what causes the peeling of the white wall? The decoration master will tell you how to remedy the peeling of the white wall, in fact, as long as the cause of the peeling of the white wall is found, and then the appropriate remedy is found for different situations, the white wall can still be restored as new.

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It may be because the sun exposure will fall off and change color, if the wall is damp, it will also peel off, and the surface of the wall will be moldy and spotted; Remove the peeling part of the putty, do professional reinforcement treatment on the base layer, directly cover the part with a roller brush topcoat, and dismantle the old wall for comprehensive construction and refresh.

Hello, the peeling of the wall has always been caused by the dampness in the house. Simply shovel off the wall skin, polish the flat surface, add some putty, and finally use paint. If the wall is seriously detached, the entire wall needs to be reconstructed.

I think that in general, if the wall skin is strong, the main reason is caused by moisture; You can clean the wall skin and then buy some materials to put it on.

The causes of wall peeling: poor craftsmanship of construction workers; Putty paint sells lead adhesion and poor shrinkage.

Solution: Choose high-quality putty coating, high whiteness, high adhesion, good water resistance, no powdering, no peeling, no falling off after use; Scrape the putty at least 2-3 times before brushing the latex paint.

Suggestion: The paint is best for special use. Interior wall paint has high requirements for scrub resistance, and the wall can be scrubbed at any time if it is dirty; Exterior paints have good water resistance. Interior wall paint does not have sun protection and cannot be used to paint exterior walls, while exterior wall paint has water resistance and can be used for interior wall painting.

Causes of wall cracking: poor shrinkage of putty; The first putty is not dry, the second time is brushed, the second time is not dry, the paint is painted, the putty is dry, and the surface layer is dry and cracked.

Solution: When reworking and repairing, the cracks should be scraped clean, and then the putty should be scraped, and the topcoat should be brushed after drying. The thickness of the putty should not exceed 2mm each time.

Causes of wall blistering: Blistering is accompanied by small bubbles in the form of sand grains, which are mainly caused by stupidity and cleanliness, such as paint buckets, rollers, brushes, spray guns, debris mixed with paint, and unclean walls.

In fact, if the wall peeling is caused by dampness at home, it is recommended to find a professional leakage repair platform to solve it, which is guaranteed and the construction will be more standardized.

Wall peeling is one of the common problems of the wall after hitting the slag sedan car, there is no lack of laughter in daily life, a large part of people will encounter this is very distressing, the following will introduce to you what are the reasons for the peeling of the wall, how to solve the peeling of the wall, let's find out together.

1. What are the reasons for the peeling of the wall?

1. The wall is damp.

If the wall is in a state of moisture for a long time, it is easy to peel and even mold. This is especially true in areas of the wall that are often exposed to water, such as balconies and bathrooms. When it rains, the walls of the balcony are easily wet by the rain, and after a long time, the wall will fall off and peel off after repeated dampness.

2. The temperature is too high.

If the temperature of the wall is too high due to long-term exposure to the sun, crystallization will occur inside the wall, causing the wall to fade, crack or even peel. There is also an important reason for the excessive temperature difference, especially in summer and winter, the indoor air conditioner will be turned on, resulting in too large the temperature difference between indoor and outdoor, which makes the wall expand and shrink and cause peeling and cracking.

3. Construction problems.

At the beginning of construction, the moisture content of the latex paint base putty did not reach the standard, so it entered the painting process, so the water content of the latex paint base layer was too high, and the later stage could not be dried quickly, and the wall latex paint would peel and fall off after a long time.

Second, how to solve the peeling of the wall.

1. Clean the peeled wall.

First, use a shovel blade to remove the damp and peeled wall surface until only the cement layer remains. After shoveling, clean up the dust and debris on the wall to keep the wall dry and tidy.

2. Coated with isolation sealant.

You can buy the "Wall Repair Kit", which contains essential materials for wall repair, such as release agent, putty paste, and latex paint. Apply the isolation sealant to the cement surface every 3 hours or so, a total of about 2-3 times.

3. Batch scraping of water-resistant putty paste.

After applying the barrier blocker, wait 1 day for the barrier to dry. Then scrape the water-resistant putty paste on the wall, and the putty paste should not be too thick, otherwise it will be easy to crack and fall off. The thickness of putty paste is less than that of each batch scraping, and a total of 2-3 batches can be scraped.

4. Use sandpaper to polish the wall flat.

After scraping the water-resistant putty paste, the surface will dry in about 5 hours. After drying, sandpaper is used to smooth out the wall.

5. Paint latex paint.

Allow to dry for about a day, and wait for the putty paste to dry thoroughly the next day. Clean up the dust off the wall and paint the selected latex paint. Paint every 3 hours or so, a total of 2-3 times.

The above is what are the reasons for the peeling of the wall, how to solve the whole content of the peeling of the wall, I hope it can help you understand the relevant knowledge of the peeling of the wall, more decoration knowledge, the evaluation of the company of the installation of beams, and the decoration case, please continue to pay attention.

The situation of wall peeling, many friends should have encountered it at home, so what to do with wall peeling, wall peeling is the home redecorating, in fact, the wall is not so troublesome peeling remedy as imagined, today I will share with you the origin of wall peeling, a simple remedy for wall peeling.

What are the causes of wall skin peeling? Sunlight fades in hot weather in summer, and the lighting of buildings in areas with insufficient air circulation is directly irradiated by sunlight, and the water-soluble salt crystals on the surface of the wall at high temperature cause color changes to fade and fall off or even crack, which will cause air conditioning with a large temperature difference between indoor and outdoor, resulting in the expansion or contraction of the wall surface, which can cause local wall peeling.

If the paint is not completely dry, the humid air in the rainy season causes the wall to be damp, both of which are due to the loss of adhesion of the paint film due to water infiltration, resulting in falling off.

If the ratio of wall putty is improper, the adhesion of putty powder is poor, and the putty is applied unevenly when scraping, which will cause water to dissolve and make the wall fall off; The improper ratio of emultii paint to water will cause the wall to peel off when the painter is exposed to the high humidity environment during construction.

If it is a simple fading, it is generally recommended to take the way of rolling brush to cover a new round of primer and similar topcoat, but before construction, it is necessary to judge the quality of the wall putty layer at this time. If there is no powdery change or peeling off (indicating that the quality of the previous putty layer is better), you can directly brush the new primer and topcoat and polish it with fine sandpaper.

Professional reinforcement of the base: For the case of serious local spalling, it is necessary to consider whether the wall base is not done. The front wall is removed to the ingots level, repainted with interface agent or sealing primer, and then leveled according to the way of whitewashing plaster, pasted with mesh cloth (reinforced and anti-cracking), and the wall line is burned flat and fell off 3 times after scraping, and the quality of the entire base layer is much better now.

The above is for the cause of wall peeling, the simple remedy for wall peeling, when there is a wall peeling situation, first of all, for the problem, according to the different degrees of peeling of the wall, to determine the remedy.

The wall surface is damp, exposed to sunlight, latex paint or wall paint quality problems, putty is not dry, the brush head coat and the second paint time is too short, the latex paint ratio is not correct or there are impurities will cause the wall to peel. A small area of peeling only needs to be repaired with wall paint paste; If there is a large area of the house that has lost skin, then it can be repaired with wall repair plaster.

There are many reasons for the peeling of the wall, it may be to prevent moisture, it may be that the technical staff is not properly handled when decorating, and there is a long time, after the natural peeling off, you should find a professional wall repairer to repair.

The reason for the peeling of the wall is that it is peeled off from the wall after being damp or exposed to the wind and sun, and it can be repainted with putty or wall after peeling.

1. Scrape the peeling part and scrape the putty.

If the white wall or bare wall is partially bulging or slightly cracked and peeling, you can remove the problematic place, and smooth the edge of the shoveled part, scrape the putty again, apply primer, and brush again, but there may be a little color difference with the original wall.

2. Professional reinforcement treatment for the grassroots level.

For the case of severe local spalling, it is necessary to consider whether the wall base is not done at all. Remove the original wall to the base layer of the wall, repaint it with an interface agent or sealing primer, and then polish it according to the plaster leveling, paste the mesh cloth (reinforcement and crack prevention), and scrape the wall lining three times, and the quality of the entire base will be much better at this time.

3. Directly roll the brush topcoat to cover the part.

If it is a simple fading, it is generally recommended to take the way of a roller brush to cover a new round of primer and a similar topcoat, but before construction, it is necessary to judge the quality of the putty layer of the wall at this time: choose the worst piece of the wall to fade with water and then use a shovel to produce a shovel, if there is no chalking or falling off (indicating that the quality of the original putty layer is better), you can directly use fine sandpaper to polish and smooth the treatment and brush the new primer and topcoat.

4. Demolition of the old wall and comprehensive construction and refreshment.

Comprehensive construction is the same as redecoration, the amount of work is the largest, and it is suitable for walls with many cracks, peeling and powdering. First of all, the wall should be completely removed to the cement layer, and if it is a house that has not been renovated for a long time in the living age (such as before the 80s), it is necessary to remove it to the surface of the brick wall.