Why does the gypsum board ceiling putty powder fall off piece by piece? What causes it? How was it s

1.For the fall off caused by the gap, first fill the gap with caulking putty, so that the caulking putty enters the gap, and then use the bandage to stick it to the gap in a right-angle shape after the surface is flat and dry, and then batch the putty, and then brush the latex paint after polishing.

There is no difference between 838 putty and 828 putty, which is a new name for the invention, but it is actually putty powder. 1. Gypsum board is a natural material, currently mostly used in the production of gypsum board for construction, because of its environmental protection and energy saving, fire and comfortable performance, the future Chinese market demand for gypsum board will increase significantly, the current Chinese market has Knauf, Saint-Gobain, Lafarge these first-line brands of gypsum production plants; Putty generally refers to the traditional old powder putty in people's concepts, but gypsum can also be made into powder products, for a new generation of gypsum putty powder, it replaces the traditional old powder containing formaldehyde is not environmentally friendly, such as Saint-Gobain production of aldehyde net putty series is a good example of powdered gypsum products. As for 828, it should have the same effect as white cement.

2. Necessary materials for home decoration include ordinary putty, water-resistant putty and elastic putty. Generally, ordinary putty is commonly used, and there are many brands of putty on the market, in fact, it is almost the same, and its main ingredients are the same; In a humid environment, water-resistant putty is generally used, which should not be damp, causing shedding, peeling, etc.; Elastic putty is generally used to repair the surface layer of putty in the later stage, like the general home decoration after heating in winter, there will be cracks in the corners of the wall and gypsum lines, which can come in handy here;

Reason 1: putty powder.

and the proportion of water, similar to the proportion of cement sand, on the wall of cement mortar.

Different from the proportion of cement mortar paved, the putty powder is too thin or too dry, and there is no big problem on the wall, and the top is easy to fall off because of gravity.

Reason two: drywall.

The problem itself, the gypsum board was not inspected when it was shipped, and the top of the pieces may have been damp.

Reason 3: The quality of putty powder is too poor and unqualified, and it is barely usable on the wall, but it can't be hung on the top.

Solution: Shovel the place where the top falls off, and then check whether the gypsum board is damp, if the moisture is not affected much, wait for the gypsum board to dry and then recoat, if the moisture is serious and cause the gypsum board to deform, you can only remove the original top surface and re-suspend the ceiling, it is recommended to apply a layer of 801 glue on the gypsum board when scraping the putty again, so that the effect is better, and a bag of 801 glue is only a few dollars.

1.The ceiling gypsum board may not fall off if the putty powder is scraped directly without brushing the interface agent, but the probability of falling off will be relatively high. If only a few pieces of skin have come off the ceiling, it is advisable to clean the peeling area first, then evenly apply cement, smooth it with putty, and then paint the wall to the same color.

If the ceiling wall falls off in a large area, it is necessary to wipe the entire ceiling wall directly, clean up the dust, not only the cement layer, but also putty and other series of construction, and finally repaint and decorate with latex paint, so that the ceiling repair work can be handled well.

2.Before the construction of the ceiling, the base layer is watered and moistened, and then the cement construction is carried out. If the construction is carried out directly without getting wet, the moisture in the cement will be absorbed by the ceiling base, causing the cement to dry too quickly and causing the wall skin to fall off.

Therefore, before construction, the walls and ceilings must be wet. After installing the plaster ceiling, it is necessary to install the plasterboard. Pay attention when installing.

In order to prevent thermal expansion and cold contraction, there must be a gap during installation to prevent bulging in the later stage. But the gaps in the back must be dealt with.

3.It is more appropriate to smooth the wall first, first smooth the protruding part, and fill in the recessed part. Drywall putty needs to be smoothed.

The role of firmness is to hold dust and fine particles to the wall. Brush the wall before putty, which can effectively ensure the dust and fine particles on the wall. At the same time, the flatness of the wall can be found when scraping putty.

Makes the wall smoother. It will not affect the aesthetics of the wall. At the same time, when scraping putty, it is necessary to pay attention to the putty not to be smooth, but to be aligned and leveled.

When painting the wall, the putty usually needs to be scraped about three times. Every time you scrape putty, you have to wait for the last time to dry before painting.

4.At the same time, be sure to avoid direct cold wind when scraping putty. Because it looks like the wall is dry, but the water is actually locked in the wall.

In this way, when heating in winter, the walls will crack. In order to clean the oil stains on the wall, you can brush the wall with some alkaline aqueous solution. If the concentration of alkaline water is only 5%, it needs to be brushed more than twice.

If the solution reaches 10%, brush it once.

If the ceiling gypsum board is not brushed with interface agent, there is a very high chance that the putty powder will fall off.

Absolutely. Because if you scrape the putty directly, there will be no adhesion at all, and it will fall off after a long time.

Yes, because if you don't brush it, the drywall will easily loosen and dust will be scattered around it, so it will fall off.

Why does the gypsum board ceiling putty powder fall off piece by piece? What causes it? How was it solved?

Why does the gypsum board ceiling putty powder fall off piece by piece? What causes it? How to solve the pro!

Hello, glad to answer for you [Happy and Sail]. The reasons and solutions are as follows: 1. It may be that the putty falls off due to moisture or water, which will cause the putty to combine with water, reduce the strength, and slowly fall off after a long time.

2. It may be caused by the thickness of the putty layer scraped too thickly, and it will be separated from the gypsum board after a long time. First, the substrate is cleaned and brushed with an interface agent, second, the flexible and water-resistant putty is used instead, and third, the putty should not be too thick and thin during construction, and it is advisable to scrape 1 batch in a single batch, and the first time it can be completely dried to scrape the auspicious batch twice, and the conditional place can be sprayed with water to enhance the hydration reaction time. Fourth, open and close doors and windows in a timely manner in high temperature and high humidity weather.

Hope mine can help you <>

Do you have any other questions?

Here in southern Fujian, the gypsum board decoration ceiling scraping putty powder used to be brushed with waterproof putty to pull the hair, improve the surface roughness of the gypsum board plan on the decoration ceiling, so as to make the batch scraping putty screed layer can be bonded to it faster, reducing the probability of cracking and falling off in the middle and late stages. Nowadays, there are many wall brushes, and the purpose is the same, in order to make the surface of the gypsum board stronger and the putty screed bonded.

The main components of putty powder are light calcium powder and resin glue powder, the viscosity can be added to the water and stirred evenly, but the adhesion will be reduced a lot after the batch scraping is dry, if it is scraped on the surface of the page is not smooth, such as red brick wall or cement mortar stucco wall can be bonded firmly, if it is scraped on a very smooth surface, the adhesion will be much worse.

The surface of gypsum board often has a layer of smooth waste cartons, so it is best to brush the waterproof putty first and dry it before carrying out the ground leveling business of scraping putty, and the nail head of all self-tapping screws used must be wiped with a layer of anti-rust paint, and the caulking gypsum should be scraped flat, which is conducive to the construction of the project. Until the construction of the wiping caulking project is dried, the small particles and residues existing in the construction surface of the project should be cleaned up with sandpaper, and the conventional full-batch project construction can be carried out. According to the actual situation, wipe the putty on the gypsum board 2 to 3 times, and then do grinding and polishing work on the surface of the putty, so that the edge of the scraped putty is not easy to fall off.

This wants you to be yourself what kind of actual effect of engineering construction. According to the following process, significant results can be achieved: there is a gap on the gypsum board (board) to carry out the plugging solution.

It is proposed to use a safe ductility grout to plug the seams, and then stick the seam tape (the master understands). Immediately scrape the putty powder on the gypsum board (board) is very easy to loosen, first to the inside, it is recommended to use the home taxi board to scrape the putty batch again to carry out the inner layer (TB above), and then scrape the putty powder (2-3 times) when it is dry. If you want to apply latex paint, continue with the following process.

After the surface layer of the putty layer is polished and polished, it is sprayed with latex paint.

No, this kind of thing has a strong stickiness and will not fall off directly, which is very secure.

If you don't brush the interface agent, the putty powder will fall off if you scrape it directly, so you should brush the interface agent first, and you need to scrape two layers of putty powder.

There is a possibility that if it is relatively dry, or if the quality is not particularly good, it is indeed easy to cause it to fall off.

Summary. Pro, hello, gypsum board ceiling putty powder piece by piece falls off, reason 1: the proportion of putty powder and water, similar to the proportion of cement sand, the proportion of cement mortar on the wall and the cement mortar on the floor is different, the putty powder is too thin or too dry, there is no big problem on the wall, the top is easy to fall off because of gravity Reason 2:

The gypsum board itself is a problem, the gypsum board was not checked when it was shipped over, and the top of these pieces may be damp for reason three: the quality of putty powder is too poor, unqualified, and the wall is barely usable at present, but the top can't be hung.

Why does the gypsum board ceiling putty powder fall off piece by piece? What causes it? How was it solved?

Pro, hello, gypsum board ceiling putty powder piece by piece falls off, reason one: the proportion of putty powder and water, similar to the proportion of cement sand mold grandson, the proportion of cement mortar on the wall and the cement mortar on the floor is different, putty powder is too thin or too dry, there is no big problem on the wall, the top is easy to fall off because of gravity Reason two: Shi Zhao blind plaster board itself problem, gypsum board transport family yard empty when there is no inspection, which on the top of these pieces may be damp Reason three:

The quality of putty powder is too poor and unqualified, and it is barely usable on the wall, but it can't be hung on the top.

Pro, hello, gypsum board ceiling putty powder piece by piece of falling off, solution: shovel off the top of the place, and then check whether the gypsum board is damp, if the moisture is not affected by the dry, wait for the gypsum board to dry and then repaint, if the moisture is serious caused by the deformation of the gypsum board can only remove the original top surface and re-suspend the ceiling, it is recommended to scrape the putty again when applying a layer of 801 glue on the plaster board before the stone date, the stool date is better.

The gypsum board of the ceiling is not deformed, but the putty layer has fallen off, and I don't want to dismantle the ceiling, but I just want to use remedial measures.

Dear, hello, the gypsum board of the ceiling is not deformed, but the putty layer has the phenomenon of falling off the bridge, I don't want to dismantle the ceiling, I just want to use remedial measures. Yes, check whether the drywall is damp, and if it is not affected by moisture, wait for the dryness of the dryhand board and then reapply the bright cavity. It is recommended to apply a layer of 801 glue on the gypsum board when scraping the putty again, and the effect is better if the key is leaked.

Summary. Reasons for putty falling off: 1. The old wall is very smooth (such as tempered putty, polyurethane and other oil-based paints), and the bonding fastness of putty powder to its surface is poor.

2. The new wall is poured with a template, with a smooth surface and a large amount of release agent (waste engine oil or silicone). 3. For non-mortar substrates such as wood substrates and metal substrates (such as plywood, plywood, particleboard, solid wood, etc.), the putty is directly scraped, due to the different surface expansion and contraction ratio, and the water absorption rate of this kind of product is strong, the rigid interior wall putty can not be deformed with it, and it will generally fall off after 3 months. 4. The putty exceeds the shelf life, and the bonding strength is reduced.

Solution: 1. Remove the shedding layer and deal with it in a targeted manner according to the following conditions; 2. Polishing the old wall to increase the surface roughness, and then treat it with an interface agent (10% environmentally friendly glue or a special interface agent for sleeping treasures); 3. Use degreasing and cleaning agent to remove the release agent or other grease components on the surface, and then apply putty. 4. Use two-component or special plywood putty for construction.

5. Marble, mosaic, ceramic tile and other exterior wall surfaces should be made of Kanglijian's special ceramic tile renovation putty. 6. Use the putty within the shelf life. I hope the above is helpful to you If you are still satisfied with me, please give a thumbs up, thank you, I wish you a happy life.

Hello, dear, please ask you in detail about your questions, I will answer for you.

Reasons for putty falling off: 1. The old wall is very smooth (such as tempered putty, polyurethane and other oil-based paints), and the bonding fastness of putty powder to its surface is poor. 2. The new wall is poured with a template, with a smooth surface and a large amount of release agent (waste engine oil or silicone).

3. For non-mortar substrates such as wood substrates and metal substrates (such as plywood, plywood, particleboard, solid wood, etc.), the putty is directly scraped, due to the different surface expansion and contraction ratio, and the water absorption rate of this kind of product is strong, the rigid interior wall putty can not be deformed with it, and it will generally fall off after 3 months. 4. The putty exceeds the shelf life, and the bonding strength is reduced. Workaround:

1. Remove the shedding layer and deal with it in a targeted manner according to the following conditions; 2. Polishing the old wall to increase the surface roughness, and then treat it with an interface agent (10% environmentally friendly glue or a special interface agent for sleeping treasures); 3. Use degreasing and cleaning agent to remove the release agent or other grease components on the surface, and then apply putty. 4. Use two-component or special plywood putty for construction. 5. Marble, mosaic, ceramic tile and other exterior wall surfaces should be made of Kanglijian's special ceramic tile renovation putty.

6. Use the putty within the shelf life. I hope the above is helpful to you If you are still satisfied with me, please give a thumbs up, thank you, I wish you a happy life.

When the putty powder is scraped on the gypsum board and the latex paint is applied, the putty powder falls off.

Dear, hello, I'm glad to answer for you, The upper layer of the gypsum board is sealed with paint, and the putty powder can no longer be scraped, the two form a compartment, and the putty powder cannot be glued firmly on the paint surface and is easy to fall off. The correct construction process is to scrape putty powder on the gypsum board now, and then brush the paint after smoothing.

I hope the above is helpful to you If you are still satisfied with me, please give a thumbs up, thank you, I wish you a happy life.