Why are there cracks after the new house is decorated with latex paint?

There are several cases of rifts1The cracking place is the place where the wall is chiseled, and the cement that is added after it is not dry is easy to crack 2Cracks caused by wall deformation, which mostly occur on the walls of balconies and shades3

If the crack has a tendency to slowly get bigger, it is recommended not to deal with it for the time being, and wait until it is stable to say that if the crack does not have a significant tendency to become larger, and the crack is relatively small, scrape a thin layer of putty there, and then paint it again after drying.

Hello: to scrape 2 times putty, brush 2 times latex paint, each process should be completely dry and then carry out the next one, otherwise it is easy to crack, in addition to if you use gypsum board, the seam should be treated and then scrape putty, otherwise it will definitely crack, to be honest, it is easy to crack after a long time after treatment, if it is very large, it should be a batch of ash cement layer cracking. If you want a real solution, scrape the putty layer, then re-batch the cement ash, and then scrape the putty and then apply latex paint!

If you don't want to be so troublesome and crack very small, you can find some elastic paint to repair it, and then brush the original latex paint again, because elastic paint is generally shiny!

What kind of putty powder are you using. You might have a problem with your construction?

For wall cracks with a depth of more than 1 cm, we need to preferentially use cement mortar to repair the cracks in the wall, and then apply wall paint.

1. When cracks are found in the wall of the home, they should be repaired as soon as possible. The first step is to remove the cracked wall, we first sprinkle water on the wall, wet the wall and then shovel, so that the shovel is more labor-saving. The wall skin should be removed to expose the cement mortar wall or putty layer.

2. After removing the old wall skin, the next step is to apply the interface agent on the wall, and we must pay attention to the uniform application. For the cracks, special treatment should be carried out, and the cracks can be pasted with kraft paper tape and white latex to prevent further cracking. In addition, it is necessary to level the uneven wall, generally plaster is more commonly used, and the uneven difference is not more than 0 5 cm, and then the cloth:

Generally, non-load-bearing walls such as lightweight walls and insulation walls need to be patched.

3. After these are processed, it is time to prepare to scrape putty. The quality of putty is related to the effect of construction, it is better to choose putty with higher particle fineness and harder texture, and you can also add a certain amount of white latex to improve the hardness of putty. After the putty is dry, it also needs to be sanded on the wall.

After sanding, the wall must be thoroughly cleaned to avoid too much dust and affect the adhesion of the paint.

Wall paint cracking is a lot of new homes for owners, and after a period of renovation or even a very short period of time, you will find more or less cracking on the river surface. 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.

When decorating a new house, will the ventilation wall crack after brushing latex paint?

There are many reasons for cracks in the wall, such as structural cracking of the original wall, bulging cracking of the wall after being wet, cracking of the original wall base layer in place, and cracking between the new wall and the original wall. If the gap is too large, you can first paste kraft paper, and then use a good cloth to lay the base, brush the interface agent, and then scrape the putty or waterproof putty twice, polish and paint it, and you can also choose to paste wallpaper to cover the effect better. If you have any questions, you can consult the lightning refresh.

1. Improper wall construction.

In the process of wall construction, the construction of new walls, old walls, wall slotting and other positions, without anti-cracking treatment or non-standard anti-cracking treatment, is one of the important reasons for the appearance of cracks on the wall.

2. Improper use of cement.

When the wall is batched with putty, the cement grade selected is too high, the ratio of sand and cement is not appropriate, or the cement layer is not dried and the latex paint is brushed, which will also lead to wall cracks.

3. Improper handling at the grassroots level.

Before the wall is filled with new putty, the base layer or putty of the original wall is not cleaned, and the latex paint will be separated from the new putty, which will also lead to cracks on the wall.

It is common for the wall to crack after decoration, but it can actually be avoided.

Small cracks are normal. Because there may be problems with the original building on the wall, if the cracks are too obvious, it is a construction problem, such as the base treatment is not in place. There is also wall paint that is a second-class product. It is recommended to use wall paint, preferably good and elastic.

There are two main reasons for the cracking of the wall after painting: one is that the basic treatment materials of the wall are unqualified, and the other is that the place that needs to be anti-crack treatment is not anti-cracking, or the place where the anti-cracking treatment is not done in accordance with the specifications. Specifically, there are the following reasons:

1. The basic treatment and materials of the foundation treatment are unqualified, such as the poor quality of the mesh cloth used for anti-crack treatment, the selected putty is non-water-resistant putty, and the cement plastering layer of the wall, gypsum putty and other treatment layers are not operated in accordance with the specifications, resulting in the hollowing and delamination of the treatment layer of the wall.

2. The wall is not treated with anti-cracking or the anti-cracking treatment is not standardized, and the places where the wall needs to be anti-cracking mainly include the following:

1) The place where the light wall and the load-bearing wall meet;

2) the place where the light body wall and the light body wall meet;

3) the part of the light body wall that is in contact with the top of the floor slab;

4) Where there are slotted pipelines on the wall;

5) Where there are cracks and cracks in the base of the wall;

6) Where there are construction holes in the wall.

In the process of decoration, the above-mentioned parts are not treated with anti-cracking, which may lead to cracking of the wall in the later stage;

Latex paint cracking in new home decoration is not necessarily a occurrence, here are a few suggestions to avoid latex paint cracking:

wall treatment. Before applying latex paint, the wall needs to be treated, such as filling cracks, plastering, etc. These works ensure that the wall surface is flat and smooth, thus reducing the risk of cracking.

Choose high-quality latex paint.

Choose high-quality latex paint, the quality is guaranteed, and its viscosity, elasticity and crack resistance can be guaranteed. You can consult a professional or go to the regular building materials market to buy.

The adhesive is reasonable.

Latex paint requires the use of specific adhesives, which should be selected according to the wall material and the requirements of the latex paint brand. If used incorrectly, it may cause the latex paint to crack.

The construction technique is correct.

When constructing, you need to master the correct methods and techniques, first apply a thin layer of primer, and then apply latex paint after drying, and each layer must be completely dry, otherwise it will lead to cracking.

Pay attention to the indoor temperature and humidity.

The temperature and humidity in the room have a great impact on the quality and service life of latex paint. When painting latex paint, it is necessary to pay attention to the ambient temperature should not be too low or too high, and at the same time, it is necessary to avoid too much moisture in the air.

Avoid damage by external forces.

Avoiding external damage is also one of the important factors to avoid cracking of latex paint. For example, avoid nails, hooks and other items directly into the wall, and avoid sticking and cutting on the wall.

In short, in the process of decorating a new house, if you want to avoid cracking of latex paint, you need to start from the aspects of wall treatment, material selection, construction technology, environmental control, etc., and strengthen control and management in an all-round way to ensure that you can achieve the best judgment and use effect.

Summary. Hello 1, if it is caused by the temperature environment, in this case we can remove all the paint, including the putty layer. Next, a V-groove is drilled along the crack, and the gap is filled with plaster.

After drying, the surface is pasted with kraft paper, putty is scraped again, and latex paint is brushed after polishing, which can bring about repair. 2. If there is cracking and chalking, it may be that the wall has not been treated, or it is constructed in a low temperature environment, resulting in chalking and cracking of the latex paint layer. In this case, it is necessary to apply a layer of putty after shoveling, and it should be sanded and smoothed.

By applying a water-based primer to the back cover, and then brushing two layers of paint on the surface, it can avoid cracking again in the later stage.

Why there are many cracks in latex paint after brushing.

Hello 1, if it is caused by the temperature environment, in this case we can remove all the paint, including the putty layer. Next, a V-groove is drilled along the crack, and the gap is filled with plaster. After drying, the surface is pasted with kraft paper, putty is scraped again, and latex paint is brushed after polishing, which can bring about repair.

2. If there is cracking and chalking, it may be that the wall has not been treated, or it is constructed in a low temperature environment, resulting in chalking and cracking of the latex paint layer. In this case, it is necessary to apply a layer of putty after shoveling, and it should be sanded and smoothed. By applying a water-based primer to the back cover, and then brushing two layers of paint on the surface, it can avoid cracking again in the later stage.

Hello, what should I pay attention to when brushing latex paint? 1. Chromatic difference Latex paint often has a certain color difference, and if you want to put colored latex paint on the wall, try to choose the same batch of the same manufacturer. Before painting, it should be tested locally, and the color should be no problem before painting the entire wall.

2. Ambient temperature In the process of painting, the wall decoration coating also has requirements for temperature. When painting, it is best to control the temperature at about 5 to 30 degrees, and the air should not be too humid. It is best to paint the walls in spring or autumn, too cold or too hot will have a certain effect on the latex paint.

3. Dilution problem Latex paint is very thick, and the aesthetics of the wall directly on the wall are poor, so it should be diluted first, light-colored latex paint can generally be diluted by 15%, and dark-colored latex paint should not be diluted by more than 5%.

Hello 4, the primer is uniform In the process of painting, the primer is a vital link, it connects the putty and the topcoat, with it, the latex paint can be better integrated with the wall, and the visual effect is better. 5. Painting method In the process of painting latex paint, it is necessary to ensure that the primer is brushed once and the topcoat twice, because this step directly affects the effect of the wall. If you are painting a dark latex paint, it is best to paint the topcoat more often, so as to ensure that there will be no color difference on the wall to the greatest extent.

6. Acceptance problems The wall latex paint should be strong and firm, smooth and flat, without cracks, uniform color, no surface peeling, etc., and if there is a problem, it should be repaired in time.

Summary. 3. Improper treatment of the base layer: Before the new putty is batched on the wall, the base or putty of the original wall is not cleaned, and the latex paint after brushing will be separated from the new putty, which will also lead to cracks on the wall.

4. Inspection: Before painting the wall with latex paint, it is necessary to comprehensively check whether the wall is strong and flat, and if the wall is defective, the property or developer should be notified in time to repair it. When painting latex paint on the wall, putty, paint or other glue is used, and in order to avoid staining the furniture, it is necessary to do a good job of protection before operation.

The putty treatment work is very important, after leveling, scrape 2-3 layers of putty, and polish and smooth the putty after drying. After the putty is processed, the primer is painted first, and the primer must be evenly applied. After the primer is dried, the topcoat is painted, usually twice, with an interval of two or three hours.

What is the reason for the cracks on the wall after the renovation after brushing the latex paint.

1. Improper wall construction: In the process of wall construction, the construction of the new wall, the old wall, the wall slotting and other positions, the construction of the new wall and the old wall, the anti-cracking treatment is not standardized or the anti-cracking treatment is not standardized, which is one of the important reasons for the cracks on the wall. 2. The use of cement is not sold properly

When the wall is made of putty, the cement grade is too high, the ratio of sand and cement is not appropriate, or the cement layer is not dried to brush the latex paint, which will also lead to cracks on the wall.

3. Improper treatment of the base layer: Before the new putty is batched on the wall, the base or putty of the original wall is not cleaned, and the latex paint after brushing will be separated from the new putty, which will also lead to cracks on the wall. 4. Inspection:

Before painting the wall with latex paint, it is necessary to check whether the wall is strong and flat, and if the wall is defective, the property or developer should be notified in time to repair it. When painting latex paint on the wall, putty, paint or other glue is used, and in order to avoid staining the furniture, it is necessary to do a good job of protection before operation. The putty treatment work is very important, after leveling, scrape 2-3 sides of putty, and after the putty has dried in Kochi, it should be polished and smoothed.

After the putty is processed, the primer is painted first, and the primer must be evenly applied. After the primer is dried, the whitewash of the surface is changed to the mausoleum paint, which is generally painted twice, and the interval between the two is generally two or three Qi annihilation hours.