How to shovel the original white ash of the wall, and how to remove the white ash of the wall of the

1. Shovel the original white ash of the wall, also called "shoveling the wall skin". "Shoveling wall skin" refers to the removal of the original decorative layer of the wall to lay the foundation for the current wall decoration project. Including wall painting, wall tiling and other base treatment, it belongs to one of the categories of concealed works.

Second, the need to shovel the wall skin:

The wall scrapes porcelain, the substrate is loose, there is a hollowing phenomenon, and the latex paint wall is not firmly combined with the wall. Here's how to judge:

1. Wall scraping porcelain: Strictly speaking, scraping porcelain is a kind of mortar, sometimes plastered on the inner wall, the surface is flat, and it seems that the appearance effect is good. However, the water resistance and alkali resistance are not good, it is easy to pulverize, and the durability is also poor.

2. Putty: putty is a very important substrate material, inferior putty lacks viscosity, water resistance is not good, will make the paint film peel and peel off. The putty should be fully dried before it can be painted, and the dried putty should be sprayed with some water to observe whether the putty is softened or crushed.

3. Latex paint wall: Latex paint with loose substrate, scratch a cross scratch on the latex paint wall, glue a piece of tape firmly to the scratch, and then tear it off quickly.

After using a roller dipped in water, you can shovel After shoveling, it is best to brush the wall first, so that the wall does not like to fall off.

1. Prepare a roller brush and a basin of water that are usually used to roll paint, and soak the roller brush in the water for a while until the bristles become soft. 2. After the roller brush is dipped in water, roll it back and forth on the wall like rolling paint, so that the wall is evenly covered with water. 3. When waiting for the moisture to gradually penetrate into the inside of the wall, you can use a shovel to remove the white ash on the wall.

4. You can use cleaning balls and sandpaper to cooperate with the shovel to remove the white ash on the wall.

1. You can also choose to pour water thoroughly before shoveling off the white ash on the wall to ensure the wetness of the wall. Only after the moisture has fully soaked into the putty layer can the white ash on the wall be quickly shoveled.

2. If the wall is made of water-resistant putty, it is difficult to remove, so it is recommended to batch a new layer of putty on it, and it can not be removed.

3. The workload of removing the white ash on the wall is still relatively large, so it is recommended to ask professional construction personnel to come to deal with it. It is best to wear a mask and goggles when eradicating to prevent inhalation into the nose and mouth.

4. After the white ash is removed, a pit can be chiseled out on the wall to carry out the chiseling treatment of the wall, which can increase the adsorption force of the wall when tiling or painting in the later stage, and can also effectively avoid the possibility of wall cracking in the later stage.

2.If it is a small part, you can deal with it yourself, the way is to spray the wall with a watering can first, and after about 8 minutes, you can remove it with a flat shovel.

1. If it is painted on the cement wall, if it is painted on the rough wall, it can also be wet with water first. 2. Wait for a few minutes to shovel down with a shovel, you can use a roller to dip in water, scrape the white is actually on the rough surface of the cement, and then brush it off with an iron brush. 3. If you want to paste tiles after processing Dabai, you can simply use cement and 107 glue to find the joint surface, and then paste the tiles.

Scraping white is a kind of building interior wall decoration, but also the most common kind of ordinary residential wall decoration, with the construction of large, talc powder and cellulose (a chemical binder, easy to dissolve in water) mixture of the wall if it is very strong can not be removed, can be sanded sandpaper reuse, after the putty is filled, painted with latex paint and wallpaper can be. I hope my answer can help you.

The white ash wall of the new house is simply covered with glue and directly brushed with new putty and polished directly with latex paint, but in recent years, the white ash layer of the new house is more and more unable to withstand our test, many new houses have cracked because of the old bottom white ash on the wall without shoveling, and even fell off. So how to shovel the white ash wall? Next, let's find out together!

How to shovel white ash walls.

1. Clean up the old wall: The general old wall will have problems such as oil stains, floating ash, hollow drums or cracks, and low water absorption, so you need to do some cleaning work on the wall. The old wall should be removed from the floating ash first, and the sand and warped skin should be removed; For the oily parts, the original coating should be removed first, and if it cannot be removed, it should be thoroughly cleaned; After the wall is cleaned, scrape two more with putty.

2. Scraping putty: It is better to choose putty with high particle fineness and hard texture, and you can also add a certain amount of white latex to the putty to improve the hardness of the putty.

3. Grinding: Try to use finer sandpaper, generally softer putty sandpaper, and thoroughly clean the wall after sanding, so as not to have too much dust and affect the adhesion of the paint. The difference between bumps and bumps does not exceed 3 mm.

4. Primer: The primer must be brushed evenly to ensure that every place on the wall is brushed, if the wall eats a large amount of paint, the primer is best to add a little more water to ensure that it can be painted evenly, do not think that it is a little more than a roller because it is a primer, the effect of the primer will directly affect the effect of the topcoat, and the same texture of the roller should be used with the topcoat, if there will be some flaws, and then brush it again with a primer with a little more water.

My family's situation is the same as yours.,I don't know how to get it right.,I want to ask if your question has been solved.,If it's solved.,Can you teach me how you got it.,Thank you.。

If the white ash is a putty layer, it can be moistened with water and then removed with a batch ash knife.

Method Steps:1Use a roller for the roller brush.

2.After it is soaked in water, it is rolled up and down the wall like a roller paint.

3.After the water penetrates into the putty layer, it can be gently removed with a batch ash knife.

It is normal for some small problems in the decoration of the house, such as scraping a layer of white ash on the wall, which requires us to use some methods to quickly shovel off. Below, I will introduce you to a few methods.

1.Use the towel scrub method.

The easiest way to remove a layer of white ash from a wall is to wipe it with a damp towel or gauze. Dampen a towel or gauze and gently wipe the wall to slowly remove excess white ash. It should be noted that if the white ash is thick, a towel or gauze can be scraped with the help of a flat tool.

2.Eraser shovel off method.

If the white ash is only a shallow layer on the wall, we can use an eraser to quickly remove it. The method is to take an ordinary eraser, gently wipe it back and forth on the surface of the white ash, and slowly wipe the white ash off. The eraser shovel method is easy to operate, and when the white ash is removed, remember to remove the ash on the wall in time.

3.What to do without a needle tail knife.

Some people don't want to buy a new one because they don't have a needle tail knife, so they can use water sandpaper or talcum powder to use a combination of white ash and then gently sanding with water sandpaper until the ash layer is gradually shoveled off. This removes the white ash in a rounded manner without damaging the economical quality of the wall surface.

4.Scraper cleaning method.

If the white ash is thickly spread, the method is to use a scraper to remove it. First, a scraper is used to scrape the blade stained with white ash with insoluble cleaning agent, and then the blade of the scraper can be adjusted to a suitable angle, and then gently scrape the ash layer on the wall. Although this method is a bit laborious, it can quickly remove the white ash from the lifting wall.

We all know that the old lime wall in our home will inevitably appear some aging or cracking and falling off after a long time, so in order to make the home more beautiful, we need to trim the wall or re-scrape the white, but we don't want to eradicate the old lime, how to operate? Today, I will tell you how to whiten the old lime wall without shoveling.

1. First use sandpaper to polish all the walls, and thoroughly polish the yellowing or stained areas.

2. After removing the hollow drum or falling place, fill the shoveled part with putty powder.

3. After waiting for drying, brush the primer on the wall first, and then brush the topcoat, so as to complete the work of whitening the wall.

How to completely renovate the walls.

1. Clean the wall first, the putty lime of the old wall is easy to crack or fall off after a long time, so it is best to remove all the original old materials and then paint them with white cement to increase the viscosity of the wall.

2. Apply the scraping putty powder, pay attention to the thickness of the scraped putty powder should be balanced, not too thick or too thin, otherwise it will affect the flatness of the wall.

3. Wait until the putty is dry, then polish the wall, polish the wall and clean the dust on the wall with a vacuum cleaner.

4. Spray primer, which is to prevent the wall from becoming moldy or foaming for a long time.

5. Wait for the top coat to dry before applying, so that the wall renovation project is completed.

Precautions for painting walls.

1. When constructing wall paint indoors, it must be in relatively dry weather, if the humidity is relatively large, the interior is easy to return to moisture or is difficult to dry, which is easy to cause the topcoat to blister or fall off.

2. When painting the wall, pay attention to the color difference between the old and new walls should not be too obvious, otherwise it will affect the appearance.

3. When painting the wall, you should take protective measures for the ground and furniture, and it is difficult to clean the wall paint after drying.

4. After the wall construction is completed, the room should be ventilated in time.