Urgent how to deal with latex paint wall cracking

Cracks are easy to repair, but the main difficulty is to solve the problem of poor color after repair. Because after the repair to paint, then the old and new latex paint has the problem of poor color, and then, now is the winter, if the seam is repaired now, the weather will be warmer next year, I am afraid it will crack, it is recommended that it is best to deal with it in April and May next year, and it is best to re-brush the latex paint after the repair.

Here are a few methods of fracturing:

1.If your home is in the south, cut the cracks out of the V-shaped groove, use gypsum and latex paint to make a paste, and then repair the joints, and the latex paint should be adjusted in advance to be close to the color of the wall.

2. If your home is in the north, due to the large temperature difference in the north, the crack should be about 5cm wide, and then use elastic putty to repair the joint, and after drying, use a good cloth to brush white latex on the seam, and finally use putty paste to level it. After drying, polish and apply latex paint. This method has been used in many homes and works very well.

First of all, I will tell you a concept, wall cracking is a natural phenomenon, just like falling leaves in autumn. Nowadays, the emulsion paint that is usually painted forms a certain toughness after being painted, which is to cover this tiny natural phenomenon. That is to say, the tiny cracks can be covered, and the larger ones will pull the paint film apart, which is what you call cracking.

What will cause a big crack is told below. 1. Due to seasonal reasons, the construction is carried out in autumn and winter, and then it enters the heating period, and the humidity is not enough, resulting in cracking. 2. After the decoration, it was not moved in immediately, it was vacant for a long time, there was no water, and the indoor humidity was not enough, resulting in cracking.

3. Local cracking, which may be caused by the construction hole of the building structure and the inadequate treatment of the base layer, and the cracks are horizontal and vertical. 4. Caused by structural settlement, only one wall is cracked. 5. In the decoration of the old house, the original wall is cracked, and the new painted base layer is not effectively treated, resulting in cracking again.

Repair principle: Regardless of the reason, the renovation company is obliged and responsible for repairs.

Repair method: 1. There are few cracks, remove the latex paint and putty at the cracks, paste the bandage and then scrape the putty and paint. 2. There are many cracks, the paint and putty at the crack coverage are removed, and the wall cloth is pasted and then the putty is scraped and painted.

Another few small knowledge to tell you: 1. The painting process of light wall (non-load-bearing wall) should first be pasted with sealing wall cloth and then scraped with putty and painted. 2. The construction hole should be pasted with a bandage first, and then the cloth should be pasted and then the putty should be scraped and painted.

3. The tinting of latex paint does not affect the quality of the paint, and it does not affect any color. 4. Dulux and Nippon Paint are the best brands of latex paint in China, of which the second generation of paint is the most cost-effective, and the imported brand American master paint (master) and Germany are the best.

There are many reasons for cracks in the general wall, which are mainly divided into four types: 1The construction process is not up to standard. For example, in the place of slotted wiring, it is perfunctory if it does not follow the formal process.

2.There is a subsidence of the foundation on the floor, and there is an encounter"Boom"Wait. 3.

The insulation walls of the building are informally treated. Because the insulation wall is spliced together block by block, if there is no formal process treatment, it will also lead to cracks in the wall. 4.

There is a problem with the cement stucco layer. For example, the ratio of cement and sand, moisture content is not in place, etc. Workaround:

For the wall cracks that appear due to slotted wiring and foundation subsidence, we must strictly follow the process construction: first of all, we must fill it with stucco gypsum, and then paste bandages, cloth or kraft paper at the slotted parts or cracks, and then do other base treatments. The non-standard process does not use kraft paper at all, but directly brushes, and cracks will inevitably appear after a long time.

There is also the best way to choose high-quality, high-quality, latex paint, such as Nippon, China Resources, and red apple paint.

Correct construction technology, good wall materials. If you don't understand, you can find Mei Tushi paint, they have professionals to help you deal with it, to ensure the construction effect of your wall.

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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1.Cracking of the structural layer.

Cracking of floor slabs is a common phenomenon in new construction and is caused by uneven settlement of the foundation or large temperature changes. It's unavoidable.

Solution: To solve the cracking of the structural layer, the pressure grouting method can be used, and the adhesive can be poured into the cracks of the wall with an air compressor to re-bond the wall together.

The original cracks in the wall can also be repaired by external force, and then repaired with elastic putty. This method is too costly, and it is suitable for people with abundant funds or large cracks in the wall skin.

2.Cracks in the seams.

Joint cracking refers to the joints between the new wall and the old wall, the joints of gypsum board, the water and electricity tanks on the wall, etc. These joints may crack at a later stage due to incorrect materials or improper construction.

Solution: For cracked joints, hanging a net on the house is almost the best solution. If your home is being renovated, it is recommended to hang nets at the junction of the old and new walls, the joints of gypsum board, and the water and electricity tanks, otherwise there is a high chance of cracking in the later stage.

3.The putty layer cracks.

Cracking of the putty layer is usually caused by the putty layer being too thick or improperly applied. Many people think that the thicker the putty brush, the better. Putty absorbs water easily. Too thick putty is too absorbent and absorbs moisture in the air, which is easy to expand and contract, resulting in cracking.

Solution: Remove the cracked putty and reapply the putty. If the cracks in the putty layer are not serious, you can use flexible putty for construction first, and then follow the standard construction method.

4.Cracking of the coating.

The main cause of coating cracking is the difference in dry humidity inside and outside the coating.

There are generally two scenarios. First, the construction process is not standardized. For example, the latex paint is too thick once and the interval between two passes is too short. Second, there is no problem with the construction process, but you can open the windows before the paint dries, which will cause the surface of the latex paint to dry quickly and thus crack.

Solution: If the cracking problem is not particularly serious, or just the coating cracks, you can wait for a while until the temperature is more suitable, and then use the remaining latex paint at that time to repair the cracked position, so that basically there will be no more cracking.

But if the base layer is cracked, you can only eradicate the cracked position until it reaches the base layer, and then hang a net on the base layer, scrape putty, and finally brush latex paint.

In addition, the use of wall coverings is also a solution to cracking. I don't use latex paint, so naturally it won't crack! However, compared with latex paint, wall paint has a higher appearance and is more expensive.

The reasons for the cracking of the latex paint wall are: there are cracks in the insulation layer of the house, which causes cracks to appear on the wall after being painted with latex paint; After the wall slotting is completed, due to improper repair, the wall shrinks, resulting in wall cracking; In the process of plastering, the cement ratio is wrong, resulting in cracking of the wall; The ratio of latex paint to water is improper, resulting in cracking of the wall.

1. If the cracking of the latex paint wall is not very serious, in the process of treatment, you can first use a knife to cut the cracks on the wall, and then use coarse sandpaper to polish, polish the cracks smoothly, then use white glue to fill the cracks, then use putty to level, and finally paint a layer of latex paint.

2.If there is local cracking of the latex paint wall, when dealing with the problem of wall cracking, the cracked part of the wall should be removed first, and a layer of anti-cracking putty should be painted, and a layer of latex paint can be painted after it is polished and smoothed, and the wall must be checked whether it is smooth when painting.

3. When the latex paint wall falls off in large pieces, the above methods can not completely solve the problem, in this case, we need to directly remove the wall skin, and then re-plaster, and then make a layer of gypsum board on the wall, and paint a layer of latex paint.

Causes of mold on latex paint walls.

1. If there is mildew on the surface, some are on the surface, some are at the base level, if there is mildew on the surface, generally speaking, because the humidity is relatively large, there will be organic matter on the surface of the latex paint, so that there will be mildew spots.

2. If there is a problem of mildew and blackening in the base layer, it is basically caused by improper treatment of the putty layer. The next step is carried out without complete drying, and similar problems are most likely to occur. Therefore, after repainting, be sure to do a good job of ventilation, and try not to choose to paint latex paint on rainy days.

Kiss! Hello, happy to answer your <>

What are the reasons for the cracking of the wall of the general latex paint, there are many reasons, the purchase of poor quality latex paint, or before the wall is brushed with latex paint, the base putty is not dealt with, if it is a small crack, first in the place of the wall crack, the base layer of the wall should be cleaned, and then we use white tape to paste the cracks, and brush the latex paint on the putty, this method is suitable for repairing the situation that the cracks are relatively small. Latex paint is the common name of latex coating, born in the mid-to-late seventies of the twentieth century, is a large class of synthetic resin emulsion coatings represented by acrylic copolymer emulsion. Latex paint is a water-dispersible coating, which is made of synthetic resin emulsion as the base material, and the filler is refined by adding various additives after grinding and dispersing.

Latex paints have many advantages that are different from traditional wall paints, such as easy to apply, fast drying, water resistance, and good scrub resistance. In China, people are accustomed to use synthetic resin emulsion as the base material, water as the dispersion medium, adding pigments, fillers (also known as physique pigments) and additives, and the coatings made by a certain process are called latex paints, also known as latex coatings. Hope mine can help you <>

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How to deal with cracks in latex paint walls?

In real life, there are many reasons for cracks in the latex paint wall, which may be caused by the separation of the original latex paint layer and the newly scraped white layer, or because of the cracking of the putty and the fact that the wall is not cured with dust, etc., so how to deal with the cracks on the latex paint wall?

1. Small crack treatment method

If the cracks are relatively small, the treatment method is also very simple, you can directly use a knife to cut the cracks, and then polish them with coarse sandpaper, and after polishing smooth, you can paste the caulking with white glue, and then level it with putty, and then brush the latex paint again.

2. Local cracking treatment method

If you are dealing with local cracks, you should first remove the cracked part, and then brush the anti-cracking putty, confirm the flatness after sanding, and then you can brush the latex paint again.

3. Treatment method for large pieces falling off

If the latex paint wall has a large piece of falling off, you can not use the above two treatment methods, you must re-shovel off the wall skin for plastering treatment, and then scrape or place a layer of gypsum board on it, and then carry out the latex paint painting work, which is the treatment method for the latex paint large piece of falling off.

How to prevent cracks in latex paint walls?

1. Buy high-quality latex paint

If you want to avoid cracking of wall latex paint, you should eliminate this problem from the quality of the paint, so when you buy latex paint, you must choose the qualified products of the regular manufacturer, if the quality of the paint itself is not good, even if you pay more attention to the construction, there will be cracks, so you should pay more attention to it when purchasing.

2. Do a good job in the grassroots treatment of the wall

If you want to avoid the cracking of wall latex paint, it is necessary to do a good job in the base treatment of the wall, we must ensure that the wall base treatment is clean and tidy, and the alkaline primer should be selected for preliminary painting, in addition to these attentions, you should also know that the latex paint construction has certain requirements for temperature, and the overly cold weather is not suitable for construction, and it is generally more than 5 to be suitable for latex paint painting work.