Is there a problem with how the putty powder batch wall will fall off the powder?

The reason is because the putty you use is not gelatinous enough. It is recommended to change the brand of putty powder first, it is recommended to brand, Nippon Paint or Meichao Yiguaping, if you buy it yourself, because there is no Meichao store on the market, it is easy to buy fake. Therefore, it is recommended to go to Nippon Paint store to sell Nippon Paint putty powder, 40 catties of about 20 yuan per bag.

During construction, a small amount of white glue can also be added to the putty.

If you're looking for a decoration company, problems like this belong to the poor quality of construction. Also, you don't need to use such fine sandpaper to polish the wall, you can use sandpaper of about 200 mesh at most. If you want to rework, you must remove the current wall putty, and then brush a layer of wall solid, and then scrape the putty, you can't scrape the putty directly on the current wall.

Hello, I am making putty powder additives, and the powder loss you said should start from the raw materials and construction used in putty.

The basic components of putty powder at least include inorganic binder materials, fillers (heavy calcium powder, etc.) and chemical additives, usually in order to reduce costs, manufacturers reduce the amount of inorganic binder materials (the interior wall is basically gray calcium) and the amount of chemical additives, resulting in insufficient putty bonding strength.

In terms of construction, if the water absorption rate of the wall is large, coupled with dry weather, strong wind and other factors, it will cause the putty to lose water too quickly after construction, especially when the putty itself adds a small amount of chemical additives that play a role in water retention, the putty dries too quickly, the gray calcium has not fully reacted, and the putty is easy to lose powder. At the same time, if a single batch scraping is too thick, the water will be absorbed by the bottom layer, and the surface layer will easily form powder.

The putty powder itself is powdered after being batched on the wall, it is different from dry powder, because it is matched with latex paint, if the powder is not lost, it is too hard to polish and not move, there is no way to paint and no way to rework, otherwise the putty and paint will be shoveled off.

It's terrible to have your putty powder, and you have to participate in this kind of putty powder, and you don't have to pay for it.

There is a problem with the raw material of putty powderThere is no addition of hypromellose, which causes the putty powder to dry quickly during the construction process, and the powder falls off when the decoration is completed.

In this case, the paint must not be applied to the outer surface, otherwise it will cause the back to hollow and peel off.

The original putty should be shoveled off and recoated with high-quality putty.

Now there are too many illegal putty manufacturers, which harm others and ultimately harm themselves.

It is hoped that putty manufacturers will pay attention to the selection of raw materials, and do not paint trouble-free and cheap.

1 ton of putty only needs to add 2 kg of hypromellose.

It is recommended to choose a high-quality hypromellose brand and refine the work.

What is the reason for putty to drop powder on the wall? What is the reason for putty to drop powder on the wall? Now start learning to tell you the reason why putty batches the wall is powdered!

What is the reason for putty batch wall powder 1Putty adhesion is insufficient. It leads to low bonding strength or small addition amount of putty glue powder, especially for interior wall putty, the size of the bonding strength, depowdering and not depowdering, and non-depowdering has nothing to do with the quality of putty glue powder and the large amount of putty added.

2.The quality of gray calcium is very important. Gray calcium contains a large number of impurities, or the ratio of bay calcium powder and Ca2 in gray calcium is not appropriate.

3.The recipe is not reasonable. The amount of talcum powder, lime calcium powder or any other product is not reasonable.

4.The issue of material selection and structure is very important in putty formulation. For example, although it is not waterproof putty, although it is expensive, it has no effect on fillers such as double fly powder, talcum powder, wollastonite powder, etc.

If only fillers such as Yinfei powder, talcum powder, and wollastonite powder are used, it will lead to depowdering, while low Yinfei powder and low-sound Yinming fans will not cause depowdering, but Yinfei powder and white cement cannot be used as exterior wall putty, because they react when they encounter gray calcium powder and white cement. These can cause depowderingThere are also polyacrylamide added to gray calcium powder, and white cement is used as a waterproof coating, which will also lead to oil depowdering.

5.Errors in the production process lead to greasy depowdering. If the mixing mixer does not have a cleaning function and additional powder remains, the head flour in the ordinary putty will correspond to the gray calcium powder in the waterproof putty, and the head flour in the interior wall putty will be the opposite of the white cement in the exterior wall putty, resulting in depowdering.

6.The different qualities of the filler can also easily lead to depowdering. The more filler material used for interior and exterior wall putty, the easier it is to depowder.

However, the interior wall putty powder in Chongqing and Chengdu contains different calcium powders, and the different pH levels will also lead to putty depowdering. For example, Chongqing and Chengdu interior wall putty powder use the same paint glue powder, but talcum powder and heavy calcium powder are different. It is not depowdered in Chongqing, depowdered in Chengdu, not depowdered in Henan and Northeast China, and depowdered in other regions.

7.Weather reasons are also a reason for the depowdering of putty on interior and exterior walls, such as the dry climate and good ventilation in some arid areas in the north, and the putty veneer is quickly formed and does not depowder. But not in the south, especially in the south there is rainy weather, long-term humidity, putty blending is not good, and it will also be depowdered, so these areas are suitable for inorganic binders such as gray calcium powder and white cement.

Impure lime calcium powder and white cement are impure, there are many gray calcium powders on the market, and white cement is not pure. Because of the large use of these inorganic adhesives, the waterproof paste for interior and exterior walls is definitely not waterproof. 9.

In summer, in high-temperature and ventilated places such as the windows in front of the high-rise doors of the building, the initial setting time of gray calcium powder and cement is not enough, and the water has been lost, there is no maintenance, and the powder is seriously depowdered.

Hello Dear Kiss Your question, leak here to give you the following answers: exterior wall brush putty 3 to 5 years, putty is easy to fall off and discolored if it rains. Generally, without scraping putty powder, the scraped putty can be kept for a long time and will not fall off.

The surface of the base layer must be solid and firm before scraping putty, and there should be no sanding, cracks, looseness and other defects. If the wall is flat, it is recommended not to use putty, if the use of putty is easy to thin the batch and not return to the stool should be quickly brushed, the putty on the interior wall should not be softened and swelled by water, and the powder must not be smeared by hand. In addition to being easy to approve and easy to polish, the requirements for putty should also have good strength and durability.

For exterior walls, kitchens and bathrooms, the requirements for putty should have better adhesion, durability and water resistance. After the putty dries, it should be sanded with sandpaper, and then the floating ash on the putty should be wiped off with a damp cloth, and the paint should be painted as soon as possible.

When decorating, if you want to paint the wall, you must first scrape putty and fix the wall, which not only has the effect of leveling the wall, but also allows the wall paint to be firmly bonded to the wall. After we scrape the putty, we have to wait for the putty powder to dry and solidify before we can apply the wall paint. After the putty is dry, we can try to touch the wall with our hands, if there is no powder, it means that the putty is fine, otherwise it is best to solve the problem of powder loss and then move on to the next step, otherwise the wall paint will also appear in the future bulging, peeling and other situations.

If the putty layer is severely pulverized, it is recommended to remove the putty as a whole, brush the interface agent and then scrape the putty. If the powder loss is not serious, the surface can be masked by coating with PVA glue or styrene acrylic emulsion. After scraping the putty on the wall and drying it for a while, press and rub the wall with your fingers, and your hands will be covered with white powder, which indicates that the putty powder has no adhesive strength.

If the putty is very badly powdered, you can't paint the wall anymore in the future. Even if the wall paint is painted, the wall paint will bulge and peel off, etc.

1. Raw materials and their proportions. Insufficient addition or poor quality of cementitious materials such as lime calcium, cement, and gypsum. Cellulose quality is poor, the purity is low or the gel temperature is low, and the amount added is insufficient.

2.Construction issues. If the application is too thin, the mixing is not sufficient after adding water, and the effect of chemical additives is not sufficient.

3.Climatic factors. High temperature and dryness, strong light exposure, windy climate, easy to lose water too quickly.

4. The grass roots are damp or not firm.

5. The water absorption rate of the base layer is too high (the wall is too dry), and the putty drying speed is too fast.

6. The product has exceeded the shelf life, and the bonding strength has decreased sharply.

7. The product is stored improperly, and the adhesion decreases sharply after moisture absorption.

1. When polishing the surface layer of putty on the interior wall, it is necessary to master the appropriate polishing time. A good polishing period is to polish as soon as the watermark on the surface of the putty disappears. Practice has shown that veneers of 1-2 square meters should be flat or polished.

2. After the surface of the exterior wall putty is dry, it should be properly polished and sprinkled with water. The general maintenance is divided into more than two times. If necessary, use a clear closure primer mixed with water (1:5) as a second spray for better results.

3. The product must be used within the warranty period. If the warranty period is exceeded, a test scratch must be performed. After passing the inspection, the construction can be carried out.

4. The product must pay attention to waterproof treatment, should be stored in a cool and dry place, and ensure that the packaging is intact.

5. In summer or when there is high temperature and wind, the wall should be moistened with clean water first, and then putty should be applied. After there is no clear water on the surface of the wall, putty can be applied.

Powder removal solution 1, the surface layer of the interior wall putty should be polished to master the appropriate polishing time, the best time for polishing is to polish the putty surface after the watermark disappears. 2. When scraping the putty on the interior wall, it is best to control the thickness between 1-2mm, which can effectively avoid the depowdering caused by too thin thickness and the cracking of putty caused by too thick thickness. 3. The product must be used within the shelf life, if it exceeds the shelf life, it must be scraped, and then constructed after passing the inspection.

4. The product must pay attention to waterproof treatment, should be stored in a cool and dry place, and ensure that the package is intact. 5. In summer or under high temperature and strong wind conditions, it is best to wet the wall with water before scraping putty, and the putty can be scraped in batches after there is no open water on the surface of the wall.

1. When polishing the surface layer of putty on the interior wall, it is necessary to master the appropriate polishing time, and the best time for polishing is to polish immediately after the watermark on the surface of the putty disappears. It has been proven that the finish of 1 2 m2 should be flattened or polished.

2. After the surface of the exterior wall putty is dry, it is necessary to carry out moderate polishing, and carry out sufficient water and silver protection, the general maintenance is divided into two or more times, if necessary, please use the transparent closed primer with water (1:5) as the second water spraying liquid, the effect will be better.

3. The product must be used within the shelf life, if it exceeds the shelf life, it must be scraped, and then constructed after passing the inspection.

4. The product must pay attention to waterproof treatment, should be stored in a cool and dry place, and ensure that the envelope is intact. Sharpening socks.

5. In summer or under high temperature and strong wind conditions, it is best to wet the wall with clean water before scraping putty, and the putty can be scraped after there is no clear water on the surface of the wall.

Why does exterior wall putty powder fall off after drying? What is the reason?

Have you learned the causes and solutions of exterior wall putty powder 1the material itself and its proportion; 2.Construction issues.

Apply too thinly; After adding water, the stirring is not sufficient, and the additives do not fully function; 3.Climatic factors: high temperature and dryness, strong light exposure, strong wind climate, easy to lose water too quickly; 4.

The base layer is damp or not firm;