What causes latex paint wall blistering? 10

First, the substrate problem.

Excessive moisture in the substrate and improper application will cause blisters in latex paint. When the wall latex paint blisters, the priority is whether the moisture in the substrate is too high, resulting in the paint surface being affected by moisture during use and causing blisters. If the cement layer and putty layer are not completely dry, then the moisture of the cement layer and putty layer has not evaporated, and it will continue to evaporate after the latex paint is applied, causing blisters.

Second, the drying speed.

The outside temperature is high, the surface of the latex evaporates quickly, and the internal inability to keep up with the rhythm will cause blisters. In this case, it generally happens in summer, the outside temperature is high, resulting in the surface of the latex paint you just brush dry quickly, making people mistakenly think that the whole latex paint has dried and will continue to brush the next layer, in fact, most of the time it is just the outside is dry, and the inside of the latex paint is still wet, so there will be a problem of latex paint bubbles when you brush it again without careful observation.

3. Ambient humidity.

The humidity environment is large, and the humidity needs to prolong the drying time. In a humid environment, the drying speed of latex paint will be slow, and if you do not wait for the latex paint to dry completely before proceeding to the next step, blisters will appear in this case. In the construction process, we must wait for the previous step to do the next step, and try to avoid construction on rainy days.

It is that the drying speed inside and outside is not the same, especially when the weather is hot, the paint spraying is too thick, the surface layer is easier to dry, the surface layer is dry first, and the inside is still wet, and the moisture inside the substrate will come out, breaking the original paint film, and then forming a blistering phenomenon. The hotter the weather and the thicker the paint film, the more common this situation becomes.

The reason why the west wall of Lujiang is blistered is because the latex paint is too thick, and after the outer layer is dry, the inner layer is easy to blister if it is not dry.

When painting latex paint, if the base treatment is not done well, we are prone to blistering during use.

Solution: For the wall that has blistered, we need to clean the peeling place, then deal with the base layer, and then brush it with 108 glue (white latex).

In order to prevent the phenomenon of blistering during the use of latex paint, it is best to stir evenly before the paint is used to master the consistency of the paint liquid, and then brush 108 glue (white latex) on the bottom putty layer before painting, which will avoid the phenomenon of blistering.

The cause of small bubbles on the latex paint wall.

1) Brushing speed.

First of all, if you apply latex paint too quickly, the wall will be prone to small bubbles after drying. This is because if the roller is too fast during the brushing process, the roller will cover more gas, resulting in many small bubbles in the later stage. When the bubbles break through the paint surface and break, the surface of the latex paint wall will form dense "pinholes", which will affect the appearance very much.

In case this happens, you need to slow down the roller paint and apply it evenly.

2) Degree of dryness.

This is because if a layer of latex paint is directly covered on top of the undried latex paint layer, a certain amount of gas will still be released during the drying process of the upper layer of paint, so small bubbles will form on the surface paint surface.

There is no roller interface agent on the wall before scraping putty; 3: The quality of the original wall putty is not good (the original wall skin should be shoveled); 4: Brush the putty when it is not dry.

Solution: Shovel off the blistered place along with the bottom layer, re-scrape the putty, sand, and brush the paint, which is the most thorough way. Specifications:

The moisture of the wall substrate is too high, which is common in the cement layer or putty layer before drying, and the moisture in the substrate is bound to break through the paint film, and the process of breakthrough is the process of destruction. In order to avoid the occurrence of blistering in this case, the cement layer or putty layer must be fully dried before painting, that is, it is solid. Under normal temperature conditions, the two can be done in 1-2 days, although the standard requirement is to maintain for one week, that is, to scrape the natural ventilation in batches and let it dry fully.

However, there is always a certain deviation between theory and practice, and it is seldom possible to follow the regulations. Regarding the maintenance of putty, the conventional practice is to scrape the first day, polish the whole on the second day, and paint on the third day. The second reason is that the drying speed inside and outside is not the same, especially when the weather is hot, the paint spraying is too thick, the surface layer is easier to dry, the surface layer is dry first, and the inside is still wet, the moisture inside the substrate will come out, breaking the original paint film, and then forming a blistering phenomenon.

The hotter the weather and the thicker the paint film, the more common this situation becomes. To avoid this problem, you can apply it thinly multiple times, and each layer is dry, which can effectively avoid the problem of blistering. The third reason, the substrate is loose, if the substrate is relatively loose, when brushing the water paint, the moisture in the water paint is bound to be fully absorbed by the substrate, forming the illusion of the paint surface drying, at this time, if the second paint brush is applied earlier, it is to hold the moisture in the substrate in it, and then goose, how to be bound by the water at ease, must break free, so the problem of blistering is inevitable.

In view of the loose substrate, the substrate can be reinforced by roller coating of interior wall primer or roller coating of wall solidification. If you encounter a relatively smooth cement when brushing the wall, you can consider wool treatment, that is, add some cement to the wall solid, and roll it with a brushing roller to facilitate the later scraping of putty.

Interior wall latex paint blistering solution:

1. In order to prevent the appearance of bubbles on the indoor wall, we must follow the construction specifications when decorating, do a good job of the waterproof layer of the wall base and repair the cracks at the wall base. After decoration, the wall cannot be dried quickly, and must be shaded to prevent the inside of the paint from drying completely. To ensure that the moisture content of the wall substrate meets the construction requirements, if necessary, add a paint layer in the local area to prevent rainwater from seeping.

2. When there are bubbles on the wall, first of all, all the blistering and peeling parts should be removed, if it is caused by the putty on the wall base, you need to remove the putty and choose the appropriate putty to scrape again.

3. Daily maintenance must always check whether there is leakage in the wall water pipe, if leakage is found, it must be dealt with immediately, so as not to cause the wall paint to blister due to the water vapor soaking the putty and wall paint.

4. Avoid painting in the rainy season for wall construction.

5. Partial wall blistering can only be partially scraped off and the edge of the scraped part can be smoothed, then primed, and repainted; If it is a large area of blistering, it must be scraped off completely, and the wall must be dried before construction.

Wall blistering is a common occurrence in daily life, so be sure to do a good job of daily prevention. If you see a slight bubble on the wall, you must deal with it as soon as possible to avoid the expansion of the blistering area.

Summary. Hello dear! Glad for your question!

What to do if the wall latex paint bubbles: The reasons why the wall latex paint blisters are: 1. The bottom layer is not treated well, and the quality of putty is too inferior; 2. There is no roller interface agent on the wall before scraping putty; 3. The quality of the original wall putty is not good; 4: Brush the putty when it is not dry.

Solution: Shovel off the blistering area along with the bottom layer, scrape the putty again, sand, and brush the paint.

What to do if the wall latex paint blisters.

Hello dear! Glad for your question! What to do if the wall latex paint blisters.

The reasons why the wall latex paint is blistered are: 1. The bottom layer is not treated well, and the quality of putty is too inferior; 2. There is no roller interface agent on the wall before scraping putty; 3. The quality of the original wall putty is not good; 4: Brush the putty when it is not dry. Workaround:

Remove the blistering area along with the bottom layer, scrape the putty, sand, and paint again.

For the wall that has blistered, we need to clean the peeling place, then deal with the base layer, and then brush it with 108 glue (white latex). In order to prevent the phenomenon of foaming during the use of latex paint, it is best to stir evenly before the paint is used to grasp the consistency of the paint liquid, and then brush the 108 glue on the bottom putty layer before painting.

Latex paint is a kind of paint widely used in interior wall decoration, but often the wall begins to blister after the latex paint is applied. Next, PCHOUSE will introduce to you how to deal with latex paint wall blistering.

1. Improper handling during decoration construction.

Reason: The base layer is not properly handled during decoration construction, and the putty is scraped directly before the base layer of the wall is dry enough. If it is a secondary decoration, it may be because the original cement layer has not been cleaned.

In addition, dust, oil and other dirt appear on the base layer of the wall, which will cause the adhesion effect between the coating film of latex paint and the base layer is not good, and the problem of blistering will occur.

Solution: First of all, do the preliminary work of decoration. Before applying latex paint, open the doors and windows of each room in the room to let the indoor walls dry as soon as possible, and be sure to ensure the cleanliness of the base layer before spraying.

2. The wall is damp.

Reason: Long-term moisture on the wall can also cause blistering of the latex paint wall.

Solution: Check whether there is water seepage in the faucet or other equipment at home, if so, repair the water pipe first to ensure that there is no more water seepage, and then shovel off the wall at the blistering place and repaint. If it is caused by internal dampness, first shovel off the wall surface at the blistering place, seal the bottom with primer, wait for it to dry before scraping the putty, and then sand, apply primer and topcoat.

If you are concerned about aesthetics, you can repaint the entire blistered wall.

3. Poor quality putty.

Poor putty quality is part of the cause of latex paint blistering, there are all kinds of putty on the market, if the quality of putty powder is too poor, it will cause the bottom putty is not firm, the problem of depowdering, thus affecting the entire latex paint wall.

4. Latex paint construction problems.

The temperature of latex paint is too low during construction to form a continuous coating film, which will cause the problem of cracking of the latex paint layer and falling off when exposed to water. It is necessary to pay attention to the details of the construction of latex paint.

5. There is too little defoamer in latex paint.

The quality of latex paint is the key reason for affecting the wall, and some latex paint adds too little defoamer, or the quality of the defoamer is not good, which will cause the wall to blister after decoration. When manufacturers produce latex paint, they must choose a defoamer that can quickly defoam and has good compatibility, so as to produce high-quality latex paint.

Painting latex paint on the wall is a very common decoration method, which can make the wall look more flat and beautiful, but if the construction master's process technology is not in place, it is easy to produce bubbles and cracksWhat should I do if there are bubbles on the latex paint wall? How to deal with cracks in latex paint after brushing?Let's find out!

How to deal with bubbles on the latex paint wall

For dry latex painted walls with small bubbles, if there are not many bubbles, you can choose to sandwork with sandpaper, then patch the sanded area with putty, and finally apply the same color paint. However, if there are many bubbles and a large range of appearances, it is more recommended to remove the latex paint film first, then solve the problem according to the cause of the bubbles, and then reapply the latex paint on the wall. Air bubbles on a latex painted wall not only affect the appearance, but they can also cause the wall to crack.

How to deal with cracks in latex paint after brushing

1.If you find a crack in the wall of your home, fix it as soon as possible. The first step is to shovel away the cracked wall. We sprinkle water on the wall first, and then shovel the wall after wetting, so that we save effort when shoveling. The wall covering should be removed to expose the cement mortar wall or putty layer.

2.After removing the old wall covering, the next step is to apply an interface agent to the wall. Everyone has to pay equal attention to the app.

For cracks, special treatment should be carried out. Kraft paper tape and white latex can be used to stick to the cracks to prevent further cracks. In addition, uneven wall surfaces should be flat.

In general, stucco is usually used, and the unevenness should not exceed centimeters. Then paste the cloth and filial piety shed material: it is necessary to paste ordinary lightweight walls and non-load-bearing walls, such as insulated walls.

3.After all this has been processed, it is time to prepare the putty. The quality of putty is related to the construction effect.

It is best to choose putty with a finer particle size and a harder texture, or add a certain amount of white latex to increase the hardness of the putty. After the putty is dry, it needs to be sanded on the wall. After polishing, be sure to clean the walls thoroughly so that there is no excess dust and affect the adhesion of the paint.

What should I do if there are bubbles on the wall of latex paint? How to deal with cracks in latex paint after brushing

1. Generally, the wall foundation at the bulge is not well handled, one is that the construction is not clean and floating, and then the wall is oily or waxy things, 2, the construction is not standardized enough, and the wall base layer is not dry on the latex paint surface layer, which may also be caused by the original cement layer not cleaned up before scraping the book.

3. The material itself is not good, such as putty glue problem.

4. The interior of the wall is damp.

5. The treatment of the bulge is a method: knock off the wall at the bulge and re-process, the specific step is to shovel off the blistered part of the cement wall, seal the bottom with a primer, scrape the putty after drying, and then polish, primer and topcoat. If you want not to affect the aesthetics, you should spray (brush) the entire blistered wall at the end, because of the newness, the texture will be poor.