There is a crack in the wall paint, is there any way to repair it?

Many people's houses have lived for a long time, there will be cracks, don't rush to spend money to find workers to repair, teach you a small method, you can easily repair it at home, save money and be beautiful, there is no gap at all, let's take a look.

1. What can be done to avoid cracks when decorating?

1. In the painting project, the joints are treated with foaming agent, which can make the joints of the building impermeable and impermeable.

2. Seal with special paper tape for paint, and finally seal the edge again with viscose yellow belt, which can effectively ensure the firmness and stability of the base layer and avoid cracking of the wall in the future. At this point, the owner can communicate with the painter during the renovation to ensure that the base treatment is in place to the greatest extent.

3. There are also cracking problems caused by the shrinkage of putty in the later stage, when the first putty in the construction is not dry, immediately scrape the next putty, and then brush the paint, it is easy to cause the surface layer of the putty to crack after drying, it is very difficult to encounter a typhoon rainy weather like now, especially to pay attention to prolonging the drying time of the wall after the first brush, continuous rainy days, the air is too humid, and the wall is not easy to dry.

If the hasty construction in order to catch up with the construction may leave sequelae, after the wall cracks, repair is more troublesome, first of all, the cracks must be scraped clean, and then scraped with putty again, and then painted after drying. In addition, there is also the question of whether it will crack again after repair. Owners who are often on the construction site can also try to illuminate the wall with sunlamps to speed up the drying of the wall.

Second, the cause of wall cracking

1. When a developer builds a building, cracks will appear in the insulation layer of the house due to technical or material issues. After renovation, it is easy to cause cracks in the wall. In this case, it is essential to contact the developer on time.

2. In hydropower projects, it is necessary to dig walls in the walls. In the later stages, due to incomplete wall repair or inadequate painting, it is likely that after painting, the wall will shrink and cracks will develop.

3. In the plastering stage, due to the problem of cement proportion, the proportion is too high, and cracks will occur after the wall is brushed.

4. When the owner of the wall brush is working, he cannot evenly apply the putty to the wall, and it is easy to crack in the later stage. At this point, the master painter should scrape off the putty again.

5. When preparing latex paint, add too much or too little water, which makes this relationship insufficient. This will affect the quality of the paint, which will lead to cracking of the walls.

We can use putty powder to gently mend it, and then apply it with latex paint after mending, which will play a role in repair.

Re-brush. Repaint the cracked area so that it will be covered.

You can buy the same wall paint for painting, before painting, you must first buy some materials to fill in, and then paint, if not, you can only consider rebuilding the wall.

Find the crack range and buy sandpaper of different thicknesses for sanding.

Choose a paint that is the same color as the original wall, and repaint the sanded position to cover the cracks well.

For self-built houses, due to the different forces of each part of the house, the foundation will have a self-balancing process, in this process, it will produce tension on the local wall, causing cracking of the wall, which will lead to cracks in the latex paint, which is manifested in irregular oblique joints on the surface of the latex paint. The relevant departments can pass the acceptance, and there are no excessive quality requirements. And the developer uses ordinary putty, the wall is basically not brushed with the bottom coating, when the owner gets the key to fine decoration, the putty on the wall is shoveled clean, and then it can be finely decorated.

Then do the cement plastering, wait until it is completely dry, re-hang the fiber mesh and scrape the putty, and finally paint it. What we need to pay attention to when scraping putty is to scrape it evenly, and the size of each pass should not exceed two millimeters, so that it is not easy to crack in the later stage. It has the advantages of easy brushing, fast drying, waterproof and scrub-resistant paint film, and variable color.

Due to the different environments and processes used, some people have encountered cracks or even arches in latex paint, so let's analyze the causes and solutions.

First use a shovel blade to shovel the paint and base putty on both sides of the cracks, shovel clean, then use the anti-crack treasure to smooth the cracks, and then use white latex to paste the anti-crack net, and so on, and then scrape the putty twice, the putty is dry and polished and smooth, and finally painted!! The hardness of these two materials is relatively large, and the hardness of putty powder is low, both are difficult to combine with putty powder, so the original wall, the top surface of the white is needed to be shoveled, if you do not shovel off the putty, there will definitely be cracking and falling off in the later stage.

If the crack is very deep like the one in the picture, it is generally caused by the settlement of the wall itself, as long as the wall continues to settle, even if it is repaired at the time, it will soon crack again. If it is the last one, then it is caused by the lack of time gap in the last batch of cement mortar. If there is no problem with the quality of the subbase, then the surface treatment is relatively simple.

If the bottom layer is not handled well, then you have to shovel it and start from scratch, remember that I didn't lie to you, it's true, and the heart is good for you.

At this time, you can go to repair yourself, in this case, the first thing is to buy some paint, and you must pay attention to the technique in this process, most people often do not go to remedy, you can go to the corresponding professionals.

You can't make up for it yourself, you can go to a professional repair master, so that there is no trace of it.

You can fix it ourselves, and we can paint the wall so that it can be restored to its original appearance, and it will be very beautiful.

It can be repaired, but it needs to be scraped off all the periphery of the crack, and then wet with water and then apply putty, and only after drying can you use new paint, not directly applied, otherwise the paint will easily fall off.

1. You can use a shovel to remove all the putty layer and paint on the cracked wall, and then clean up the dust on the wall. 2. Then repair and smooth the cracked place of the wall with cement mortar, and after the cement mortar is completely dry, it is also necessary to hang a net or paste a nylon mesh cloth with relatively high strength. 3. Finally, scrape putty and paint latex paint on the wall.

1. First of all, you must choose putty with good quality; The second is that when scraping putty, the putty layer should not be too thick, and try to keep it within 5 mm; Another thing to say is that before painting putty, if you find that there are cracks on the wall, it is best to do a good job of anti-cracking treatment.

2. Painting the wall in winter, especially prone to cracking, mainly because the climate in winter is relatively cold, but if the floor heating is installed at home, then the floor heating can be turned on, and the temperature at home reaches minus 5 degrees before construction, so that the probability of cracking on the wall is very small.

3. Before painting the wall, you must first level the wall, and the leveling material can choose to use putty powder, if the wall is not leveled, then the wall will not only crack, but also bulge.

4. The wall paint used is not up to standard, or the thickness of the wall paint is uneven when the workers are constructing, and they are not patiently polished, resulting in cracking of the wall paint.

First of all, use a shovel to remove all the putty layer and paint on the cracked wall, then clean up the dust on the wall, and then repair and smooth the cracked place of the wall with cement mortar.

Reasons for this problem:

1. The foundation of the house has subsided, resulting in cracking in the structural layer of the house.

2. The quality of the cement mortar used by the developer when building the house is worse than that of the Xiaotan section, and cracks appear at the joints of the wall.

3. The putty used in decorating the house is of poor quality, and the construction process is not in place, which leads to cracking of the putty layer.

4. The wall paint used is not up to standard, or the thickness of the wall paint is uneven during the construction, and there is no patient polishing, resulting in cracking of the wall paint.

5. First of all, we must choose putty with good quality; The second is that when scraping putty, the putty layer can be too thick, so try to keep it within 5 mm; In addition, before painting putty, if you find that there are cracks on the wall, it is best to do a good job of anti-cracking treatment.

6. Painting the wall in winter, especially if it is prone to cracking, mainly because the climate is relatively cold in winter, but if the floor heating is installed at home, then the floor heating can be turned on, and the construction will be carried out when the temperature at home reaches minus 5 degrees, so that the probability of cracking on the wall is very small.