Can putty powder scrape the wall by yourself, and how to use the putty powder for scraping the wall?

If it is a large area of scraping the wall, it is recommended to find a professional decorator to do it.

1. Shovel wall skin, you can do a slight wetting test to check whether the adhesion of the original coating is qualified;

2. The wall is closed with 801 glue again, the purpose is to enhance the bonding force between the putty and the wall. If you encounter an old house, you can brush the interface agent to increase the insurance factor. The yin angle is treated with the "elastic line" on both sides (pay attention to the verticality), and the yang angle is treated with a leaning rod.

Use gypsum powder and 801 glue to prepare gypsum putty, and straighten all the gypsum putty. In general, plaster lines are not recommended.

3. For wall leveling, first check whether the wall has a "hollow drum" (can be knocked and judged by listening to the sound), and then use a slightly longer aluminum alloy ruler to check the recessed parts of the top and the wall, mark it, and flatten it with gypsum putty.

4. Formally scrape the putty, after the gypsum putty is dry, scrape and apply the putty (each time it must be thoroughly dried). There are two ways to test whether the putty is dry: first, observe whether the color is consistent; The second is to see if there is a phenomenon of "sticking sandpaper" when sanding.

Strong light oblique grinding, the top surface can be 360 sandpaper.

The putty packaging on the market is generally 20 kg, and each package can be completed 8-12 square meters of plastering living area (twice) under normal circumstances, depending on the flatness of the wall, the actual packaging capacity of putty shrinkage, the thickness of plastering or the increase in the number of times will be quite different! If you calculate the survival on both sides according to the normal range, each package is 10 square meters, and the three-time survival is 7 square meters! Taking the total painting area of 200 square meters as an example, it takes 20 packs for two times and 28-30 packs for three times!

No, you cannot. The wall that has been painted must be removed and then scraped putty, if it cannot be shoveled, it will be shoveled off with a blowtorch.

Putty powder is a kind of building decoration material, and the main components are talcum powder and glue. The surface of the newly purchased blank house is a layer of white - putty, usually the whiteness of the putty is above 90 and the fineness is more than 330.

Putty is a substrate used for wall repair and leveling, which lays a good foundation for the next step of decoration (painting and wallpaper). Putty is divided into two types: interior wall and exterior wall, and the exterior wall putty should resist wind and sun, so it has high gelatinity, high strength, and slightly lower environmental protection index. The comprehensive index of interior wall putty is good, healthy and environmentally friendly, so the interior wall is not used externally, and the exterior wall is not used internally.

Usually putty is gypsum or cement-based, so that the surface is rough and it is easier to bond firmly. However, during construction, it is still necessary to apply a layer of interface agent on the base layer to seal the base layer and improve the adhesion of the wall, so that the putty can be better bonded to the base surface.

Painted walls with wall paint, in general, it is not easy to hang putty powder. Putty powder is water-soluble, and it is not easy to bond with paint, and if it is not removed, it will leave hidden dangers on the wall in the future.

The surface of the wall painted wall is smooth and not easy to adhere, and when the seasons change, the temperature difference is large, and it will slowly fall off in pieces.

To decorate the house by yourself, you must tell the renovation workers that the trouble must be eradicated. Even if you increase your salary, you have to eradicate it completely.

Hello! The wall that has been brushed with wall paint is generally not easy to hang the putty powder, because the putty powder is water-soluble, and the paint is not easy to bond, if not removed, it will leave hidden dangers on the wall in the future. The wall that has been painted with wall paint has a smooth surface and is not easy to adhere, but when the seasons change and the temperature difference is large, it will slowly fall off in pieces, which is very difficult to remedy.

It is best to polish the previous wall with coarse sandpaper 1 time, and then scrape it 2 times with a better putty batch, otherwise the putty will not be hung on the wall and affect the decoration effect.

Ask what to do.

It is best to remove the old wall and then scrape putty and paint the painted wall. You can use an abrasive cloth to polish off the latex paint on the wall, and then brush the putty, and then paint it.

Yes, you can scrape the wall with an interface agent.

It is not recommended to use this way, because the surface of the wall paint is already very smooth, and the putty powder is scraped directly, and the adhesion may not be so strong. Easy to fall off!

I scraped off my house and rented it casually. Let's do this specially, it's very troublesome to do it yourself.

There should be no problem to scrape.

1. The first step that needs to be done is to treat the wall to ensure that it is clean and flat. There is a problem of unevenness, and it is also necessary to do a leveling through cement mortar. Next, add the putty powder to the water, because it is now the finished material, you don't need to add glue, just add water, stir evenly, put it next to it for about 10 minutes, and then stir it again, and you can use it.

2. Then scrape and coat the ground by smearing a wide knife or scraper, and wait until it is dry to carry out the second construction. The thickness of the second coat is about 1 mm, and it is sanded with sandpaper. After the sanding is smoothed, the next step of construction can be carried out, so that the wall scraping putty is completed.

How to use putty powder?

Step 1: Make sure the base layer is solid, clean, and roughly flat.

If it is a base layer with strong water absorption, it should be moistened with water or sprayed with glue for sealing treatment before scraping putty powder; If it is a newly plastered cement wall, the putty should be scraped after the curing period.

Step 2: Mix and press putty powder and water.

Stir well according to the example of 1:1 per mu of cherry blossoms, then let stand for 10 to 20 minutes, stir well again and use.

Step 3: Then use a steel scraper or spatula to scrape, and the number of scraping should not be too much.

Communication hand often scrape twice, the second coating in the case of the previous coating dry before construction, this must be noted, the approximate thickness of the scraping is.

Step 4: Sandpaper sanding

After the putty powder is dry, sandpaper is sanded, and the paint or wallpaper is pasted as soon as possible.

Notes:

1. When storing, pay attention to waterproof and moisture-proof, and the storage period is about six months.

2. The construction temperature is above 0, and the putty powder should be used within 45 hours after being adjusted into a paste to avoid deterioration for too long.

3. Putty powder should not be used on the same construction surface with other putty, so as not to cause chemical reaction and color difference.

How to check the wall surface of the putty is qualified?

1. After scraping the putty, we can see that some workers will shine through the light, such as installing a bulb with relatively high power, and then shining it on the wall. The main thing is to check whether the wall is relatively flat, if not, you also need to scrape putty.

2. At the same time, you should also check whether the wall has been completely dried, you can touch it directly, if you feel that there is white powder on the palm, it means that it has indeed dried. However, if it feels a little damp to the touch, it means that you need to be patient and wait until it is completely dry.

3. At the same time, it is also necessary to check whether there are cracks on the surface, if there are cracks, it may be that the thickness of the brush does not meet the requirements, such as too thick, there will also be cracking, in this case, it needs to be dealt with in time.

How to distinguish putty powder from bad?

Teach you a simple method, directly look at the water-soluble putty, if it is a bad product, after water washing, the hand will stick to the water-dissolved product. But if it's good, flush it with water and your hands will be clean.

1. Shovel wall skin, you can do a slight moisturizing test to check whether the adhesion of the original coating is qualified, and the vast majority of the wall surface has been inspected in one word: shovel! X0D X0A 2, the wall is closed with 801 glue, the purpose is to enhance the bonding force between the putty and the wall.

If you encounter an old house, you can brush the interface agent to increase the insurance factor. The yin angle is treated with the "elastic line" on both sides (pay attention to the verticality), and the yang angle is treated with a leaning rod. Use gypsum powder and 801 glue to prepare gypsum putty, and straighten all the gypsum putty.

There are two ways to test whether the putty is dry: first, observe whether the color is consistent; The second is to see if there is a phenomenon of "sticking sandpaper" when sanding. Strong light oblique grinding, the top surface can be 360 sandpaper.