What are the consequences of painting the putty on the wall before it is dry?

Generally, when decorating the wall in the home, you need to scrape up a layer of putty first.

Then apply latex paint.

Moreover, the putty on the wall must be closed before painting, otherwise it will lead to a series of problems when the wall is used later. If the putty scraped on the wall has not dried, apply latex paint, which is likely to cause the adhesion of latex paint to decrease, and then there will be peeling, and the putty will also appear moldy and damp The phenomenon will crack, and the wall will become very ugly. <>

First, the adhesion of latex paint will be very poor

Because latex paint is a kind of paint, is relatively high water content, if the layer of putty inside the latex paint has not dried before, the water in the latex paint is likely to not be completely inside the putty of the Holy Road After the decoration is completed, the surface of the latex paint will form a layer of film, and in the later stage of the house in the process of use, the particles will not dry out because there will be mold and dampness, at this time the outer latex paint will peel, and then the whole wall will become very ugly. <>

Second, putty will become moldy

Because latex paint is a layer of paint on the surface of the wall, the drying speed is relatively fast, if the putty inside has not dried, the latex paint will quickly form a layer of film after drying, and the moisture of the putty inside will become moldy because it cannot volatilize. After the putty range, there will be large and small mildew spots on the whole wall, which will greatly affect the appearance. <>

3. The putty on the surface will crack

Because after hanging putty on the wall, when the putty dries, there will be a lack of water, and there will be a slight shrinkage, if the putty is coated with latex paint after drying, it is a stable shrinkage, and some small holes in it will also be filled, and the wall will be very flat at this time. However, if the putty is not completely dried and the latex paint is applied, the putty inside the lamp will shrink after it is completely dry, and the outer layer of latex paint is likely to be torn at this time, so the wall will be very obvious cracks. When the putty inside is dry, there will be shrinkage, and at this time, the outer layer of latex paint will be torn, and the wall will have obvious cracking.

It will lead to latex paint peeling, putty damp wall mildew, some cracking of the skin, the color of the wall is not very uniform, the wall is not particularly flat, the consequences of this are more serious, it is best to dry up later.

Peeling may occur on the wall, which may make the wall more susceptible to moisture, causing the wall skin to fall off, which may produce some air pollution in the air, such as formaldehyde emitted by substances.

After that, there may be cracks in the wall, the putty will dry and crack, and the skin will fall off, and it is also possible that the putty will be moldy, damp, and there will be more mildew spots on the wall.

The phenomenon that the wall can peel off can make the wall easy to get wet, causing the wall skin to fall off, which can cause air pollution in the air, such as formaldehyde emissions.

There may be a peeling environment on the wall, or the wall may be easily damp, causing the wall skin to fall off, or some air pollution may be produced in the atmosphere, such as formaldehyde substances emitted in.

There will be some peeling phenomenon, the epidermis may crack, the wall looks uneven, there are some water marks, if the home has been damp, there will be some mildew, then you need to redecorate, the consequences are very serious.

It may cause the wall skin to be sticked, and then the putty and paint on the wall will be completely mixed together, and the wall will not be tidy at all, and there may be whitish or different shades, and the wall may crack later.

If the putty has not dried up, it can only destroy the previous putty, and the paint will be very uneven, very ugly, and you have to scrape off again, and the putty will not be troublesome.

It will cause the wall paint to fall off, which will cause a lot of spots on the wall, which will cause the wall to crack, which will cause the wall to soften and fade.

1. Wall cracking: the putty itself has a lot of water content, so the standard construction specification is to wait for the putty to be completely dry before proceeding to the next step.

2. Wall"Flowering"Generally, the wall will have a cement layer, if the putty is not dry and the latex paint is brushed, the moisture in the putty will be mixed with the cement layer wall alkali to penetrate, which will lead to obvious water traces on the wall and the wall will become flowery.

3. The wall is damp and mildew: we all know that latex paint has a paint film, and if the putty is not completely dry, it is easy to close the putty by brushing latex paint, and the putty moisture cannot be released and evaporated, so that the wall is easy to appear moldy, and it is mildew in serious cases.

The walls are not dry and can not be scraped putty.

Construction according to the technological process: cast-in-place concrete wall, due to many reasons such as floor slabs, materials, separators, etc., the flatness of the wall is poor, and there are often pores, honeycombs, hemp surfaces, yin and yang angles are not smooth and bulging, so it is required that the convex places are smoothed and smoothed, and the recesses should be filled and filled.

For the precast concrete floor slab and slab joint base, it must be brushed by a special person with a wire brush to remove the floating sand particles, pimples, dust and other debris on the surface. For the cement mortar paper reinforcement ash surface layer, the surface base layer is required to be dry, solid and clean (no floating soil oil stain).

Cracks, blistering, peeling, and peeling occur in the putty probe layer for the following reasons:

Poor bonding. The cracking, peeling, and peeling 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 caustic soda aqueous solution (used to remove the oil stain on the wall) is not brushed, and the amount of binder or putty formula emulsion is not improper.

As a result, the bond strength between the putty and the base layer will be reduced. The test data proves that the base layer is well treated, and the bond strength can generally be increased by 5-9 kg square centimeters, and the emulsion can improve the bonding performance of the mortar and the base layer, and the general bond strength can be increased by 4-7 kg square centimeters.

No way. In this way, the aftermath is endless, and the latex paint will blister. To fall off, wait for the wall to dry before scraping putty.

1. Process flow: base treatment, repair putty, scrape putty, apply the first emulsion thin coating, apply the second emulsion thin coating, apply the third emulsion thin coating.

2. Base treatment: First of all, remove the peeling, loosening and bulging on the wall and other base layers, and remove the dust, dirt, splash foam and mortar flow marks and other debris remaining on the surface of the base layer.

4. Scraping putty: the number of times of scraping putty can be determined by the flatness of the base or wall, generally three times, the ratio of putty is the weight ratio, there are two kinds, one is suitable for indoor putty, the mix ratio is: polyvinyl acetate emulsion (i.e. white latex) talc powder or large white powder 2% carboxymethyl cellulose solution = 1 5; The second is putty suitable for exterior walls, kitchens, toilets, and bathrooms, and its mix ratio is:

Polyvinyl acetate emulsion cement water = 1 5 1. Don't use it incorrectly. Here's how:

The first time with a rubber scraper transverse full scrape, a scraper followed by a scraper, the joint shall not be left behind, each scraper finally closes, pay attention to the collection to be clean and neat. After drying, grind with No. 1 sandpaper, smooth and polish the floating putty and stains, and then clean the wall. The second time with a rubber scraper vertical full scrape, the materials and methods used are the same as the first putty, after drying, with No. 1 sandpaper smoothed and cleaned.

The third time use a rubber scraper to find the putty, use the steel scraper to scrape the putty, scrape the wall and other base layers, and then smooth and polish with fine sandpaper after drying, pay attention not to miss the grinding or grind the putty through.

5. Apply the first emulsion thin paint: the application sequence is to brush the top plate first and then the wall, and the wall should be up and down first. Clean the wall first, and then use a cloth to wipe the dust off the wall.

The thin emulsion paint is generally brushed with a pen, and when using a new pen, pay attention to removing the hair of the active pen. The emulsion thin paint should be stirred evenly before use, and diluted with water appropriately to prevent the first coat from being applied to prevent the first coating. After drying, the putty is refilled, and after the putty is dried, it is polished with sandpaper and cleaned.

6. Apply the second emulsion thin coating: the operation requirements are the same as the first time, and the use should be fully stirred before use, if it is not very thick, it is not appropriate to add water or add as little water as possible. In case the bottom is exposed. After the paint film is dried, use fine sandpaper to polish off the small bumps on the wall and the brush bristles, and clean them after grinding them smooth.

7. Apply the third emulsion thin coating: the operation requirements are the same as the second emulsion thin coating. Because the latex paint film dries quickly, it should be operated continuously and quickly, starting from one end and gradually brushing to the other end, paying attention to the connection between the upper and lower brushes, and the latter row of pens is immediately followed by the previous row of pens to avoid drying and then dealing with the joints.

No. The new cement wall cannot be scraped putty without 5 days, because the cement wall may not be completely dry after about 5 days. Under normal circumstances, the cement wall can only be scraped after it is completely dry, and the drying time of the cement wall is usually about 28 days, but the specific drying time should also be determined according to the ambient temperature.

Related information: 1. Before painting the wall with cement, the wall must be cleaned. And use sandpaper and brushes to clean the wall, and dispose of the floating ash and dust on the wall.

Then after grinding to a uniform condition, wait until it is completely dry, and then scrape the putty. 2. When scraping putty, be sure to test the flatness of the wall. When scraping putty again, scrape putty twice on the wall, so that the wall can be leveled and the background color of the wall can be covered.

If the flatness of the wall is not particularly good, it is necessary to scrape putty several times in some uneven places. If the flatness is particularly poor or there is an inclination, it is necessary to scrape the leveling plaster first and then scrape the putty. 3. And when brushing the topcoat, you should paint the wall twice, wait for about 2 or 4 hours between each time, and wait for it to dry before brushing the second topcoat.

Under normal circumstances, it takes about 1 to 2 days to dry after brushing. And before drying, we must make sure that the wall is not damaged, otherwise the overall effect will not meet the corresponding standards. Moreover, the surviving walls should be strong and flat, and there should be no cracks between them, and the color should be treated evenly.

In the process of decoration, scraping putty against the wall is likely to cause the wall to be powdered, and now most of the decoration will choose latex paint, which is an environmentally friendly material, and the waterproof performance is also better.

There is a possibility that the wall needs to be treated, preferably by wallpaper or latex paint.

This situation will occur, if there is no way to ventilate well, and the ventilation time is relatively long, it is easy to lead to this situation.

The wall will crack later and be unsightly.

After drying, it will turn yellow, shell, and uneven.