The old house is painted with latex paint, and the paint on the original wall is relatively intact,

It needs to be eradicated, if it is not eradicated, it will easily fall off later, and it will also make the wall seep water.

Of course, it is necessary to remove the paint on the wall, so that it can be better decorated, the wall can be better painted, and the wall skin can be prevented from falling.

The wall needs to be removed, and if the original tin is not removed, the paint on the wall will be particularly easy to crack.

The old house is painted with latex paint, and the paint on the original wall is relatively intact, do you need to remove the paint on the original wall?

Step 1: First, the state of the original wall.

For an old house, if you want to repaint the latex paint, the condition of the original wall directly affects how it should be constructed, and the most obvious impact is whether the paint on the original wall should be removed.

The walls of this old house are to be painted with latex paint. If the original wall has the following conditions, it needs to be removed from the original wall surface and the original wall is damaged in a large area: if the old house has been lived for too long and different areas on the original wall are damaged in a large area, if you want to repaint the latex paint, the paint on the original wall must be removed;

Moisture on the original wall: If the original wall is damp for various reasons, it will have a great impact on the wall regardless of whether it is treated properly or not. At this time, if you want to paint the latex paint on the wall of the old house again, the paint on the original wall must be removed;

There are smudges on the original walls: For old houses, there are often a lot of smudges on the walls due to carelessness in life. The phenomenon of children scribbling on the walls with pens still exists.

In this case, if you want to paint latex paint on the walls of an old house, you have to shovel the paint to the original wall. The walls of this old house are to be painted with latex paint. If the original wall has the following conditions, it is not required to clear it.

It turns out that the integrity of the wall is very good: for people who are very meticulous in daily life, even if they have lived for many years, the walls of the home are not damaged, leaking, dirty, etc., but the latex paint has faded due to natural oxidation. In this case, if you want to repaint the latex paint on the old house, you don't need to uproot it, you can repaint it directly on it;

Paint latex paint directly on the old wall without removing the hazards of the wall.

1. If there are pits, peeling and stains on the old wall, it will directly affect the adhesion of latex paint. In addition, if latex paint is applied directly without removing the wall, the color of the wall will be uneven and latex paint will not be used. Therefore, if the foundation of the wall is not good, the wall must be removed and then painted with latex paint;

2. If the old wall is uneven, it is easy to contain dirt such as floating ash. Direct painting will not only cause pitting on the wall, but also easily cause the latex paint to fall off in the later stage. The cement of the walls is alkaline, so it is easy to take alkaline flowers without shoveling the wall surface. Therefore, it is best to shovel the wall first and then paint latex paint;

3. If there are cracks in the old wall, it is more necessary to shovel them off before painting latex paint, because the cracks may be caused by the settlement of the building. If the wall is not removed, applying latex paint directly will not only fail to cover the cracks, but also waste money.

The old house is painted with latex paint.

When the paint on the original wall is relatively intact, do you still need to remove the paint on the original wall? Can you paint old walls directly? The original wall foundation at home has good strength, and it is a latex paint wall, so you don't need to shovel off the wall skin, you can directly paint it with simple sanding, cleaning and repair.

It should be noted that the integrity of the original wall paint film should not be damaged, and latex paint with better adhesion should not be used, otherwise the wall will easily peel off.

<> the old wall at home is melamine, if you want to repaint, you need to scrape off the old wall skin or paint the wall, and then repaint putty powder.

It can only be painted after polishing. Do not cover the dark paint with light paint, brush the wall with white paint beforehand, and wait for the paint on the wall to dry white.

After that, you can paint the color paint again. If the domestic economic conditions allow, it is recommended to do it again. If you buy a wall that has not been renovated for a long time, then when dealing with the wall, it is possible to keep the original wall and not completely shovel it, so that the owner can use a steel brush, sandpaper or grinder to polish the wall, and then brush the latex paint.

For shoveling wall paint, you only need to shovel to the cement layer, if the cement layer is pulverized, cracked, and peeled off, you need to shovel out the red bricks and finally repaint the wall. See if there are any large-scale cracks or "cracks" on the wall. You can try to dig a hole in the wall with nails, because the loose layer of sand in the wall can dig out the sand, so it is necessary to shovel the wall and shovel off the red bricks.

Tear down the walls and check for large areas of empty barrels. Before processing and construction to the base layer, the original old wall must be cleaned up, and the bad wall must be thoroughly cleaned, and the wall that has been brushed with latex paint must be polished after disassembly, and the skin and dust on the wall must be removed after polishing.

To fill a small part of the wall with depressions and cracks, you can fill in with plaster, and make sure that the wall is smooth and clean before painting. In order to avoid the problem of peeling and cracking of the wall after painting, the wall base can be repaired and the environmental protection interface agent can be brushed.

Wait for the interface agent to dry before brushing the putty, which can ensure that the new coating is tightly integrated with the original base layer.

I think it still needs to be shoveled, if there is always a new latex paint on the wall, it can not form a good adsorption effect, which is easy to cause the coating to fall off, and it will also make the color of the latex paint appear color difference, affecting the decoration effect.

If you want to paint latex paint on the old house, the original paint on the wall must be removed, if not removed, directly brushed, the latex paint will easily fall off, and the effect will not be very good.

Removing the paint on the wall can be better painted, which can make the paint process effect longer, and can also make the decoration effect look better.

It also needs to be removed, because after the two are mixed, they will have different effects, and eventually lead to peeling.

Yes, so that it can be a good fix and not make the problem worse.

Depending on the current condition of the original paint, it can be decided whether to remove it or not.

The wall of the old house wants to be painted with latex paint, and the original wall has the following conditions, so it is "needed" to be eradicated.

1. There is a large area of damage to the original wall: if the old house has been lived in for too long, and there is a large area of damage in different areas of the original wall, then if you want to repaint the latex paint, you have to remove the paint on the original wall;

2. There is dampness on the original wall: if the dampness on the original wall is caused by various reasons, then no matter whether the dampness is dealt with or not, it has a great impact on the wall.

3. There are dirty marks on the original wall: for the old house, usually there are a lot of dirty marks on the wall because of carelessness in life, or it is the phenomenon of children scribbling on the wall with a pen.

It is definitely necessary to remove the paint from the original wall, because the paint on the original wall is not compatible with the newly painted paint. After a long time, it will affect the new paint and fall off.

It needs to be removed, and the paint composition of the original wall is different from the new paint composition, and there is a chance that it will react after mixing and the durability will be reduced. In addition, it is easier to attach the new paint to the wall after removing the old paint.

It needs to be removed, and the paint on the original wall is removed and re-painted, so that the paint will be cleaner and more translucent.

Summary. 1. Clean up the old wall.

If the old wall does not have any blistering, peeling, hollowing, etc., then there is no need to eradicate it, and it can be directly painted after simple hair repair. If the old wall is damaged, it needs to be removed, and the wall will be shoveled to the cement mortar layer when shoveling the wall, so that the adhesion will be stronger when scraping putty in the later stage.

2. Brush the interface agent.

The interface agent can enhance the adhesion to the base layer and avoid the hollowing and shelling of the plastering layer. Therefore, when brushing the interface agent, the wall should be painted evenly. After that, check the wall and level the uneven areas with stucco plaster.

3. Scrape putty.

After brushing the interface agent, scrape the wall about twice with putty to ensure that the wall is solid and flat. Try to choose putty with high particle fineness and hard texture, in order to improve the hardness of the putty, you can also add a certain amount of white latex to it.

4. Grinding. After scraping the putty, try to choose a finer sandpaper to polish, too thick sandpaper will leave deep sand marks on the wall, and it is difficult to cover the paint in the later stage. After sanding, clean the wall to avoid too much dust that will cause the adhesion of latex paint to decrease.

If the old wall has been around for more than ten years, can it still be painted with latex paint? With or without treatment of the wall.

Hello, I'll see you later.

Hello, you can't paint latex paint directly, you need to treat the wall first.

It is better not to paint the old wall directly with latex paint. For the old wall, there will be some problems such as peeling and cracks, so you may wish to use a steel brush or shovel to flatten the wall and clean it until the cement wall is free of floating soil. The purpose of this is to make the new latex paint more firmly bonded to the wall.

In addition to this, it is also necessary to remove the peeling primer. If there is wallpaper left on the old wall, it is inevitable that some adhesive tape will remain after tearing it off, and it needs to be cleaned at the same time. Generally speaking, the difference in wall flatness can be 3mm.

1. Clean up the old wall If the old wall does not have any blistering, peeling, hollowing and other phenomena, then there is no need to eradicate it. If the old wall is damaged, it needs to be removed, and the wall will be shoveled to the cement mortar layer when shoveling the wall, so that the adhesion will be stronger when scraping putty in the later stage. 2. Brushing the interface agentThe interface agent can enhance the adhesion to the base layer and avoid the hollowing and shelling of the plastering layer.

Therefore, when brushing the interface agent, the wall should be painted evenly. After that, check the wall and level the uneven areas with stucco plaster. 3. After scraping putty and brushing the interface agent, scrape the wall about twice with putty to ensure that the wall is solid and flat.

In order to improve the hardness of the putty, you can also add a certain amount of white latex to it. 4. Polishing after scraping the putty, try to choose a finer sandpaper to polish, too thick sandpaper will leave deep sand marks on the wall, and it is difficult to cover the paint in the later stage. After sanding, clean the wall to avoid too much dust that will cause the adhesion of latex paint to decrease.

1. The old latex paint needs to be removed. The old wall must be treated with a wall base before brushing latex paint, and all the serious chalking should be removed, and then the putty powder must be re-brushed, and then the latex paint must be brushed.

2. If you re-brush latex paint, the quality of the wall is not good, it will affect the later decoration effect and service life, and will also have an impact on the overall environment of the home. Whether it is wall paint, wall tiles or wallpaper, if you want to renovate better, you should reprocess the base part of the wall.

If the house needs to be repainted with latex paint, does the old latex paint from the original brush need to be removed?

Dear, hello, I am glad to answer for you that the house needs to be re-painted latex paint, the original brush of the old latex paint needs to be cleared, the need to re-brush the latex paint is the original brush of the latex paint is to be removed, not only that, we also need to shovel off all the chalking of the wall, and then the base layer of the wall is also cleaned up, and then re-brush putty. If you don't shovel off the original latex paint, if you re-apply the latex paint directly, it will bring a lot of trouble to the later stage, because the latex paint is a paint with relatively scattered moisture, if you don't eradicate it, it is likely to affect the existing latex paint wall, and you want to re-brush the latex paint, the treatment is as follows: 1

Old latex paint needs to be removed. The old wall must be treated with a wall base before painting latex paint, and all the serious chalking should be removed, and then the putty powder should be re-painted.