Can you directly brush latex paint if the wall is yellow?

You can't brush it directly.

It needs to be sanded before brushing. The reason is that if the direct brush is not polished, friction.

Smaller, not smooth enough, brushed.

Latex paint. There will be peeling or bursting skin, it is recommended to polish before brushing.

If the wall is dirty, you can directly paste a layer of wallpaper.

If you brush latex paint, you must treat the base layer of the wall, or it is not easy to appear anti-alkali phenomenon, and when you finish brushing, the wall is still easy to turn yellow in a large area within a few days after painting. At that time, it will be yellow from the inside out, and it is recommended that you re-polish it, brush the anti-alkali primer, and then brush the latex paint.

It is recommended that you still shovel off the original latex paint, since it is yellowed, it means that the paint film structure has been destroyed, although there is no crack, but its chemical properties have changed, do not shovel off the previous paint, the later sprayed paint will be faster yellowing, and the later paint will be sprayed in white.

It is best to scrape putty first and apply latex paint process.

Sweep the base layer Fill putty, scrape putty locally, grind the first full scraping putty, grind the second full scraping putty, grind the second full scraping putty, grind the sealing primer Brush the first coat of paint Fill the putty, grind the second coat of paint Polishing and working.

Actually, it's not as serious as they say, I'll teach you to do a test, it's very simple. Use a waste towel dipped in warm water of about 30 degrees, press it on the wall with your hand for about 5 minutes, and then wipe it back and forth with your fingers on the place where you have applied it.

1. The yellowing of the wall is mostly due to the use of the time for too long, and if the yellowing area is too large, you can use the same latex paint as the surrounding wall for a covering operation, so that the previous effect can be restored. 2. If the area is not very large, there is no need to cover it, you can choose to use yellow water to remove yellowing, the commonly used is a spoonful of detergent plus a spoonful of white vinegar and then put in baking soda, and finally put in 100 ml of tap water, and then apply it to the yellowed area, so that it will return to its previous appearance. 3. If there is a phenomenon that all the walls are yellow, it is best to ask a professional decoration master in this case.

Related knowledge popularization: 1. The wall should be cleaned regularly, first of all, you can look at the size of the area where the yellow area is distributed, and then carry out a corresponding operation, if it is too large, it is necessary to cover it as a whole. 2. It may be that a small area has the problem of yellowing accidentally, so you don't need to be too cumbersome to operate, you only need to prepare a little yellowing potion by yourself.

3. It may also be that the wall has been exposed to the sun, so the wall is all yellow, and it is necessary for professional personnel to reconstruct the wall to recover, and it is best to clean the wall regularly.

The walls of ordinary old houses generally need to be removed from the original paint. The method is to spray the surface layer with water first, and then use a trowel or planer to remove the surface paint.

For the old wall that has been in disrepair for a long time, the surface has been seriously peeled off, and the plastering layer is silty and sandy, so it is necessary to eradicate the paint layer and the entire plastering until you see the cement plastering or brick layer. Then use double fly powder and cooked rubber powder to mix the primer and flatten, and then finish the latex paint, the surface layer needs to be coated 2 to 3 times, and the interval between each time is better than 24 hours.

Latex paint. When the wall is yellowed, you need to use sandpaper to polish the latex paint wall, polish off the latex paint on the surface, and then paint the new latex paint. Latex paint will oxidize with the air over time, white latex paint will appear yellowing after a period of use, when brushing latex paint again, choose your favorite color for painting, color latex paint can avoid yellowing.

1. Latex paint will be yellowed after a long period of use, which is because of oxidation, and the old wall is polluted, such as someone smoking at home, or a large amount of oil smoke is not discharged outdoors in time. It is also possible to fix the color of the wall after the latex paint is brushed, and use alkali-resistant water.

The material is applied to the wall with latex paint to prevent the wall from yellowing.

2. Try not to mix water when painting the wall with latex paint, mixing with water will make the color lighter and there will be color difference, and the addition of water will also cause the oxidation rate of latex paint.

3. Pay attention to the ventilation of the room during the construction of latex paint, especially in scraping putty.

If the latex paint is painted too early, there will not only be cracking, but also a large amount of water vapor in the latex paint will be generated, accelerating the oxidation rate.

You can't brush it directly.

It needs to be sanded before brushing. The reason is that if the direct brush is not polished, the friction is small, and it is not smooth enough, and the latex paint of the brush will fall off or burst the skin, so it is recommended to brush it after sanding.

If the wall is dirty, you can directly paste a layer of wallpaper.

It is recommended that you still shovel off the original latex paint, since it is yellowed, it means that the paint film structure has been destroyed.

If you want to brush like a new one, you have to shovel off the original latex paint, scrape the putty and then brush, if the requirements are not harsh, the wall that needs to be brushed with sandpaper can be brushed, and it looks slightly different from the new wall after brushing

Latex paint, must be treated well in the base layer of the wall, or it is not easy to appear anti-alkali phenomenon, and when you finish brushing, the wall is still easy to yellow in a large area within a few days after painting. At that time, it will be yellow from the inside out

What's going on with the yellow appearance of the back wall after brushing latex paint, pro! Hello, I am happy to answer for you<> the reason why the yellow color appears on the wall after painting latex paint is as follows: a large yellow ridge appears on the latex paint wall.

It should be caused by the alkali or water leakage of the wall, when the wall is brushed with latex paint, there will generally not be a large yellow color, only one situation will appear, that is, the wall will return to alkali, or the wall leakage and infiltration will appear in this situation, and the wall latex paint will appear after the wall returns to alkali. It is best to apply the primer once or twice before applying the wall latex paint, which can be changed. The yellowing of the wall after brushing the latex paint is not necessarily a problem with the wall paint imitation Yezhi, and the quality of the general brand paint should still be okay.

It is also possible that the wall is back to alkali, you can ask the master who is engaged in decoration to see how the wall base is treated in the early stage, and the wall base is not well treated if it is easy to cause the wall to turn yellow. You can see if you want to redo it according to the degree of yellowing, if you feel that it has an impact and want to redo it, then you can only try to eliminate the feeling of cleaning the bottom layer after re-polishing the wall, and try to repaint it. Hope mine can help you <>

Do you have any other questions?

In a humid environment for a long time, ordinary putty will inevitably be pulverized for a long time, and the yellowing is caused by water stains on the wall after being wet. Solution: Thick coat twice or later, and then scrape, sand and paint.

Latex paint is an emulsion coating, their paint film performance is much better than solvent-based coatings, and the organic solvent that accounts for half of the solvent-based paint is replaced by water here, so the toxicity problem of organic solvents is basically completely solved by latex paint.

In addition to water and safe different types of polymers or polymers, latex paint also contains a small amount of emulsifier and a trace amount of unpolymerized free monomer, which is a small molecule that can be volatile, and there are different degrees of toxicity.