After the decoration wall is scraped putty, it blisters and dries into a small pit, why is the maste

The moisture content of the base layer is too high and the density is too large or too small. Because it contains abundant voids and the putty has a high moisture content, it is not breathable, and the air is enclosed in the void cavity and is not easy to eliminate.

After a period of construction, the bursting and blistering on the surface is mainly caused by uneven stirring, and the slurry contains powdery particles that are too late to dissolve. If there is a large area of blistered putty surface, use a shovel to directly break the small bubble mouth, and in the case of serious blistering, it is necessary to apply the blistered surface layer with Biyou putty and scrape it again.

The putty is generally stirred evenly, let it stand for about 10 minutes, and then mix it again with an electric mixer before putting it on the wall. If there is blistering on the second or last surface layer of construction, the foaming should be broken with a scraper before the watermark is eliminated to ensure that there are no bubbles on the putty surface.

For the first time, workers are required to scrape gypsum powder, and the advantage is that it dries quickly, especially in rainy and humid weather. The gypsum has good hardness, good adhesion, and is not easy to crack and shrink when dry, and has good filling power, which can block the small eyes on the wall. If the putty is too thick, it will dry slowly, so the first time you must scrape the plaster, and you must use full glue.

The second time, scrape putty, the focus of this scraping is leveling, because the wall is not so smooth and straight, so you need to scrape putty to find peace and straightening, the yang angle must be about 3 meters long aluminum alloy ruler to do ruler straightening, the yin angle must be straightened, so that you can see the edge is the edge, the effect is very good. When it is dry, polish it again, this requirement does not need to be too high, but you must wait until it is dry before you can apply the putty for the third time.

Color selection, requires a full match with the materials needed, to ensure that there can be no less, and then in the future, it is easy to form color difference, strict requirements can not be excessive water, excessive dilution will affect the quality and effect of the coating.

In the case of the primer brushing, you can brush the last topcoat, after brushing, you must ensure that there can be no damage, bruises, because although the damage can be repaired locally, plus color difference and scars, you can clearly see that the better the paint, the more you can see the scars, for the sake of aesthetics must not have bruises.

After the decoration of the wall is scraped putty, there are small blisters, and when it dries up, it becomes a small pit, which is caused by the wallpaper master.

After construction, a large amount of water is absorbed, and swelling forms bursting. Large areas of blistered putty noodles appear.

If a large area of blistered putty surface appears, use a spatula to directly break the small bubble mouth.

Small bubbles indicate unevenness, voids, and the moisture content is too high, so if the area is too large, remove it and redo it.

If there is no air or water inside, if the area is large, it is recommended to re-make it.

Because there are voids in it that the water content is too high, you can make the best from the new.

There are two possibilities for scraping putty and foaming twice: 1. It may be that when the first putty is greasy, due to the urgency, the first putty has not completely dried, so it begins to scrape the second putty, and then the first putty produces some gases and other substances when it is dry, arching the second layer of putty; 2. It may be that the wall is damp, if the wall is not dry with putty, it will blister, no matter how many times it is brushed, so the old man should scrape the putty again when the wall is completely dry. **Analysis:

The common problems of the construction quality of wall scraping putty are mainly cracks, blistering, peeling and falling off of putty exploration layers, and the reasons are as follows: the bonding is not strong, and the cracking, peeling and falling off of putty are mainly caused by the poor bonding between putty and the base layer. If the base layer is not cleaned up or the treatment method is improper, the template release agent, oil Ke, inorganic acid and organic acid on the base layer are not completely removed.

The putty coating is too thick, and the putty coating thickness is related to the choice of material and mix ratio. For example, scraping large white putty, in order to facilitate the operation, the talcum powder content is more, which improves the lubrication performance of the putty, and generally does not produce excessive coating.

If the wall plastering mortar is brushed, the surface is relatively uneven, and there are particularly large and tiny holes, and then the putty batch scrapes to the wall when the batch scraping speed is relatively fast, resulting in the vapor in the hole is not discharged, and jumps out, resulting in small blistering. Putty is a professional term in decoration. Personally, I think that the greasy in the meaning of putty actually refers to the greasy feeling of greasy, which also shows that putty is like a muddy object with greasy sensibility on the surface.

The important component of putty is personally considered to be some putty powder, plus filler water and corresponding modified materials, in the final made of a building material decoration.

If you scratch putty in your newly renovated house, in fact, as we all know, the most important role of putty is actually to find tranquility at the bottom of the wall. Because the wall before the batch of putty is not a wall batch putty wall, if it is not a concrete wall, so a thick and thick filling item must be selected to fill the batch. The original plaster used to be used is the same as the current putty, and the bottom floor leveling can also lay a basic foundation for the decoration construction of the next layer.

The general putty covers putty powder and general putty paste. If we all buy commercial and residential use, we will find that under the premise of taking the house, the surface of the interior wall is also a cast-in-place floor slab, which is brushed with a layer of milky white compound, which is basically putty powder. If you touch the putty powder scraped on this wall with your hands, you will find that this kind of putty powder will have significant powder loss, because your hands are white after touching.

Therefore, after the general putty and putty powder are scraped, there will be a significant powder loss. Putty personally thinks that in terms of interior wall decoration, it should be a moisture-resistant putty.

Of course, I gave a detailed description of the putty in the house. Moisture-resistant putty is to add a certain amount of glue in the case of general putty. Therefore, the moisture-resistant putty in the house is particularly white and smooth after scraping, and it feels very good, and there is no powder and powder loss; In addition, the continuity of moisture-resistant putty is very good after scraping, and it can still be relied on on the wall after many house decorations.

That is to say, after building a new house, the first thing to do is to decorate the wall in the house, and then the ground tile paving and part of the wall tile design and decoration, the area of the wall tile is generally the bathroom, kitchen, dining room, living room and duplex staircase, in which the living room and stairs are pasted with wall tiles more than one meter high.

What to do: It should be dealt with in time, you can directly crush the small bubbles with a scraper, and then scrape the flat layer thin with a suitable putty. Or when stirring the putty powder, let it stand for about 10 minutes after stirring, and stir again, so that the scraped surface layer is not easy to form small bubbles.

In the process of decoration, if this problem occurs, it is because there is a problem with the ratio of water and white ash, and if you want to remedy it, you should remove it again and scrape the putty again.

It is necessary to scrape the putty again, which means that the level of the putty scraper master is average, and the material selection is average.

The putty was painted three times, and after less than two months, a large area of the wall appeared bubble-like small bumps, and finally the powder fell off to form small pits, what is the reason for this?

Caused by the quality problem of greasy celery powder: the main component of putty powder is a variety of mixed materials such as talcum powder and glue. The mixed material is not arbitrarily matched, if the match is unreasonable, there will be quality problems, and the putty powder that is not up to standard and unqualified quality will be found in a variety of use problems.

Such as foaming, powdering, peeling, peeling, etc.

Caused by the quality of putty powder: The main components of putty powder are a variety of mixed materials such as talcum powder and glue. The mixed material is not arbitrarily matched, if the combination is not reasonable, there will be quality problems, and there will be a variety of use problems if the putty powder is not up to standard and the quality is not qualified.

Such as foaming, powdering, peeling, peeling, etc.

Problems caused by climatic factors: temperature will affect the foaming of putty powder, too high temperature and too low temperature are not suitable, such as scraping putty powder in summer and winter, it is easy to scrape putty foaming. It is generally recommended to scrape putty in spring and autumn.

If the temperature is too high, the wall is too dry, and the temperature is too low, the thermal expansion and contraction of the wall will lead to blistering, so you need to scrape putty powder and pay attention to the climate.

Generally speaking, most of the blistering is the rough wall, the rough wall itself is uneven, there are a lot of small sand grains in it, so there will be blistering, it is also possible that the house is not well ventilated, and the inside is not dry, which will cause this to happen.

The putty on the wall has blistered in a large area, and the most thorough solution is to shovel it off together with the bottom layer, scrape the putty again, polish, brush the paint, and do something else, treating the symptoms but not the root cause.

When the wall contains water, the putty powder that is not resistant to water will absorb water and blister, resulting in large-scale blistering, cracking and falling off of latex paint. Moreover, the better the performance of the latex paint, the better the film-forming property, the more serious the problem, if the wall contains a lot of water, and continues to contain it, even if the water-resistant putty is used, the above phenomenon will occur. Workaround:

Use a sealing material to cover the back first, and then use water-resistant putty.

There are two possibilities for what you are encountering:

1. If it is a new wall, the plastering layer of the base wall, the mixed mortar is not well prepared, resulting in the expansion of the ash mass and the blistering of the wall in the later stage;

2. There are particles in the putty powder, which leads to foaming.

The difference between these two cases is that the depth of blistering is different and can be directly distinguished.

If it's just putty coming off, it's ash in front, and before scraping the putty, put a strong glue on the wall.

There are a lot of bubbles when the putty is scraped for decoration, what should I do? Under normal circumstances, during the putty placement scrubbing process, the air will diffuse to the surface layer or to the inside of the base layer, and the air cannot diffuse normally during construction, resulting in the presence of gas between the base layer and the putty layer, forming foam. The main factors that affect the normal diffusion of air are:

The base is too dense. The base is too dense. For example, because the foundation is too dense and there are few internal holes, the air cannot diffuse into the base layer during the greasy batch scratching process, resulting in the air between the base layer and the putty layer cannot be discharged in time and form foam. Therefore, for the base layer that is too tight, you can use the rice nest to roughen it first, and then scrape off the feeling of the rice nest.

It's too dry. When the base layer is too dry and the greasy layout is scratched, the moisture in the greasy layer is quickly absorbed by the base layer, and after the void of the base layer is filled with moisture, a large amount of air is replaced, and the air of the base layer and the putty layer exists, resulting in foam. Especially in the summer heat, when the base layer is too dry and prone to blister problems, in this case, before the greasy layout is scratched, sprinkle water on the base layer to make it moist.

It's too thin.

When the greasy dough is greasy, add more water, stir the greasy one too thin, and when the greasy batch is scratched, the greasy air fills the gap of the base layer, and the replaced air is not easy to squeeze and diffuse to the inside of the base layer, but it is easy to diffuse to the surface to form foam. So, when making greasy dough, you can mix it with the appropriate viscosity, leave it for 10 minutes, and then scrape it off. There are no special requirements for construction.

As much as possible, don't mix them together.

The single batch of putty is too thick, and the internal air cannot be discharged in time when the putty batch is scratched, forming foam, so the principle of thin batch scraping should be paid attention to, and the thickness of the single batch of putty scraping is controlled.

Through the above analysis, we can understand the causes of putty foam, understand the base layer suitable for scraping putty placement, environmental conditions, construction technology, etc., which helps to avoid blister problems as much as possible. If the greasy layout is scratched and there are greasy blisters caused by the above conditions, we can go under surgery to deal with the bubble bursting before the greasy is completely dry (i.e., before the watermark is completely removed).

The cause of bubbles can be caused by uneven stirring, and it can also be climate-related, and manual problems can also cause bubbles. The solution is to pour some water on the wall and wait for him to dry, in order to reduce the temperature of the wall. Hope it helps.

It is necessary to open the window for ventilation, evaporate these bubbles, and wait until the bubbles are eliminated before scraping the putty, so that the putty scraped up is not easy to fall off.

At this time, you must find a renovation worker to solve this problem, because bubbles are a very common problem.

Don't be in a hurry, wait until it dries slowly and quickly, then scrape it by hand, and then add a thin layer of putty to control the strength.

You can stir more and try to expel the bubbles on this putty, so that the putty can be smooth and smooth.

This situation is very troublesome to deal with and should be handled by some professionals. It's complicated to deal with it yourself.

You should have to do it again after scraping the putty, or you can directly paste the wallpaper.

Generally, when scraping putty for the first time, directly use a shovel blade to crush all the small bubbles, and then scrape putty in batches to fill the holes, which is basically solved after grinding.

If the climate is dry and the wall is too dry, it is recommended to spray some water on the wall to moisten it, and then carry out the next step of construction after the wall has no open water, which can reduce the appearance of some bubbles.