How to repair cracked wall paint? What to do after the wall paint cracks

With the continuous progress of society, people's living standards have improved a lot, it can be seen from the environment in which people live, now most of the families have reached the well-off level, the home decoration is very high-end, everyone must use latex paint when decorating the house! However, due to various reasons, there will be a series of situations after the decoration of the house, for example, the cracking of wall latex paint is very common, and then I will teach you how to repair the cracking of wall latex paint!

How to repair cracks in wall latex paint:

1.First of all, in the crack of the wall, the base layer of the wall should be cleaned, and then we can first paste a layer of good cloth, kraft paper or newspaper on the wall, and then apply putty and brush latex paint. This method is to use the tension of the fiber to ensure the integrity of the paint film of the latex paint, and the method is relatively simple and easy.

2.You can also remove the insulation board on the surface of the wall, or remove the cement wall, install a layer of gypsum board or "five-mile board" outside the insulation layer, and then do latex paint on it, this method can remove all the irregular cracks, and the cracks are generally the joints between the boards, which are easier to deal with. However, the cost of this method is higher, the construction is difficult, and if the general family repairs it by itself, it may be more troublesome, such as the cracks in the wall of the home are not large-scale ones, and it is best not to use this method.

3.Another way to repair is to use elastic decorative materials. At present, there is a material called "elastic putty" in the method of wall substrate treatment, which can make up for the problem of wall cracks to a certain extent.

Of course, these materials themselves are less "elastic" and may not be very effective on walls with large cracks.

How to repair cracks in the wall

Method 1:If the depth of the wall crack exceeds 1cm, the wall crack repair with cement mortar is preferred.

Method 2:If the cracks on the wall are relatively small, you can directly take the steps of brushing glue - sticking cloth - making putty. Before brushing, the wall substrate at the cracks in the wall is cleaned, and a layer of newspaper or good cloth is pasted, and the tension of paper fiber or cloth fiber is used to ensure the integrity of the latex paint.

Method 3:At present, there is a kind of "elastic putty" on the market**, which can be directly selected when decorating the wall to make up for the problem of wall cracks. However, the elasticity of this putty is not very large, and if it encounters a crack with a relatively large area, it will not work.

Well, if you encounter the cracking of wall latex paint in the future, I believe everyone will solve it by themselves! Of course, in addition to the cracking of wall latex paint, there are other decoration problems worth understanding. As long as you pay more attention to these aspects, I believe that it will not be long before you can become experts in this area.

In case of some situations in the future, you can solve them by yourself. You don't have to worry about professional technicians to repair it.

The steps for repairing cracks in latex paint walls are as follows;

1. Clean the wall, clean up the loose or stained places, and then use cement mortar to make up for it, and remove the excess residue.

2. Repair the wall, use water plaster to level the wall bumps and uneven places, treat it with sandpaper after drying, and finally clean up the floating dust.

3. Scrape putty, usually do it three times, such as kitchens, toilets, bathrooms need to take polyvinyl acetate than cement than water is equal to 1 to 5 to 1 ratio, the first time with a rubber scraper to scrape horizontally, and then use a scraper to deal with, pay attention to the joint to be careful, and finally scrape once to deal with the end.

4. The first time the latex paint sequence is first up and then down, after the wall is cleaned, take the cloth to sweep away the dust, and then the latex paint is brushed with a row pen, and the floating and loose hair on the pen should be cleaned up, and the latex paint should be stirred and balanced before use, so as to avoid the situation that the brush can not be opened, and then fill it with putty after drying, and then polish it with sandpaper, and finally clean it up.

5. Brush the latex paint for the second time, stir the putty before using it to balance it, so as to avoid penetrating the top, and after the paint film is dry, take the sandpaper to polish it flat, and finally remove the dust.

6. Brush the third latex paint, the practice is the same as the second time, but because the latex paint film dries quickly, it needs to be operated quickly, and the order of painting is from one end to the other.

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Cracking of wall paint bai is a lot.

The owner's new home, Du will find more or less cracks in the river surface within a period of time or even a very short time after the renovation. The cracking of the paint film on the surface of the wall will seriously affect the visual effect of the decoration of the wall. It can even cause the paint film to crack, which will affect the life of the wall.

If only the crack of the surface. Just use fine sandpaper to sand off the cracks, and choose the same color of the wall area to repaint.

Reason bai:

Extremely cold temperatures below 10 degrees Celsius cause the paint to lose its elasticity and crack.

dao。Sudden changes in temperature or untreated wall panels can also lead to cracking of the paint.

Solution: Use a spatula, sandpaper or wire brush to completely remove the cracked paint.

For concrete, plaster or inter-wall surfaces, use latex block fillers to smooth out excessive imperfections. Painted with new exterior acrylic latex paint.

Eradicate the latex paint and putty layer, re-batch the putty, and brush the wall base film and King Kong anti-alkali wall base film (alkali-resistant and waterproof, solid wall) in order to prevent similar problems from appearing again.

For some cracks on the surface, but not too serious, you can brush putty and latex paint for the cracks, and repair the brush locally, so as not to affect the overall effect.

Precautions for wall painting.

1. Before painting the wall, it is recommended to test the moisture content and acidity of the wall, the moisture content can be detected by the tester, and the pH can be detected by the pH test paper.

2. If there is a fine white powder on the cement wall, it means that the salt content of the wall is high, it is recommended to wait for drying and then smoothing it with sandpaper before painting, in order to prevent the wall from being eroded in the future, you can apply primer before painting.

3. If there is old paint on the wall, then you need to wipe the surface with a rag first, wait for it to dry before shoveling off the old paint, and finally rub it with sandpaper to increase the adhesion of the wall, first clean the ceiling and then clean the surrounding walls.

The above content refers to People's Daily Online-Four steps to get the wall renovation Experts recommend not turning on the air conditioner during construction.

It is recommended that the owner ask professional construction personnel to repair it, so that the most suitable method can be selected according to the actual situation.

Extended information] 1. Cracking of the structural layer, there are two reasons for the cracking of the structural layer, one is because of the cracks in the wall itself, and the other is caused by the sinking of the foundation in the later stage. If this situation is encountered, it is recommended that the owner ask a professional construction personnel to repair it, so that the most suitable method can be selected according to the actual situation.

Second, the cracking of the wall joints, generally speaking, the main reason for the cracking of the wall joints is that the wall is affected by external forces, and the shape of the cracks is mostly vertical or parallel to the ground. If you are an owner who buys a commercial house, when you encounter this situation, you should first find the property to verify the situation, and then wait for the owner to solve the fundamental problem before repairing the cracks in the wall, otherwise it is easy to crack repeatedly.

3. Cracking of putty layer, cracking of putty powder is a relatively common situation, which may occur because the modulation ratio of putty powder is not right, or the construction process is not well controlled. When repairing, the owner needs to first remove the putty powder around the cracks, then fill the gypsum into the cracks to polish and level, and finally paste the mesh cloth to scrape the putty powder again.

Fourth, the cracking of the plastering layer, many people think that the main reason for the cracking of the plastering layer is that the process is not good, but in fact, it is not entirety, because the shortening of cement mortar can easily lead to the cracking of the plastering layer. Before repairing similar cracks, it is necessary to find all the hollow positions on the wall, and then mark them, if it is a large area of hollow drums, it is recommended to knock out the entire wall and start anew. If it's just a small area, you only need to knock the hollow drum open, and then repair it directly.

Fifth, the wall paint cracking, if the area of the wall paint cracking is very large, it is likely to be the use of shoddy wall paint, if the area is relatively small, it may be caused by improper construction. Either way, the crack must be smoothed out with fine sandpaper before repairing, and then painted with the same shade of wall paint.

What are the housing quality problems;

1.The instability of the building, the instability of the building is a relatively serious housing quality problem, which is mainly manifested in the sinking after the settlement period, and the uneven settlement leads to the tilting of the building;

2.Leakage, the problem of leakage not only affects your own use, but also affects your neighbors and the residents downstairs. The problem of leakage is mainly due to the imperfection of waterproofing works;

3.The quality of doors and windows, if the doors and windows are there themselves, not purchased by themselves, it is recommended to open and close the doors and windows of the house separately when buying a house;

4.Cracks, cracks are relatively easy to find, generally including wall cracks and floor cracks, buyers should pay attention to whether there are traces of repair of the wall, to avoid artificially covering up the cracks;

5.The design of water, electricity, heating and gas is unreasonable, and the design of water, electricity, heating and gas is unreasonable and will seriously affect future life, including pools, bathtubs, squatting (sitting) toilets, water meters, floor drains, power switches, power sockets, electricity meters, radiators, gas stoves, gas meters, etc.

The steps to repair cracks in the wall are as follows; 1. Use a putty knife to scrape out the width of the gap, and scrape it into a figure-eight shape, with the outer width and the inner narrow.

2. Fill the gap with dry powder of gypsum block, and the depth of the plugging is greater than or equal to 30-40mm, which does not need to be filled with the wall, and needs to be lower than the wall.

3. Paste glass cloth or cowhide notes after brushing glue in the gaps.

4. Scrape the putty 2-3 times and smooth it with the original wall, and polish it with sandpaper after drying.

5. Adjust the wall paint, brush the sample first after the paint is adjusted, compare it with the wall color after drying, the color is close, the color difference is not large, and then paint the wall.

6. If there are only small fine cracks on the wall, it can be covered with paint; If the crack is relatively large, it needs to be covered with putty and then covered with paint; If the crack is large and deep, you need to shovel off the original putty and fill the gap with elastic putty again.

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Apply wall paint, plaster, putty, professionally handle, paint or wallpaper.

1. Painting wall paint: This method is relatively simple, but it is not durable, and it is only suitable for small areas of cracks and shedding.

2. Scraping gypsum: For those small cracks and small peeling, you can first shovel off the cracked or peeled parts and sweep them clean, then scrape the gypsum with a putty knife, and then apply latex paint after the gypsum dries.

3. Putty: Before repairing, you need to deal with the bulging and peeling phenomenon, remove the cracks and bulges and the surrounding areas, and then use putty to fill the gaps and smooth them, and then apply wall paint after a day and a half.

4. Professional treatment: If the crack is large or the area is large, it is generally difficult to repair it by yourself, and professionals need to use special tools to operate and deal with it.

5. Painting or pasting wallpaper: The wall is cracked, and it is not easy to repair it as before, so some people simply use the method of coloring paint or wallpaper to cover up the flaws, and it looks like the effect is still okay.