White wallpaper on the wall after yellowing, what the reason

I am a professional wallpaper maker of Ouya wall cloth, I hope mine can help you. In your current situation, there are several reasons, you can analyze them and see how to solve them. 1. The white wallpaper itself has poor coverage and is easy to penetrate; 2. If you have brushed the varnish before, it will definitely turn yellow, because the varnish is slightly yellow when brushed on the wall; 3. The problem of light may be that the light of the customer's home is yellow; 4. If you have brushed the varnish before, it is useless to brush the base film again, and the wall should be yellowed or yellowed.

If it is the fourth case, it is recommended that the wall surface be retreated.

Wallpaper yellowing is generally divided into the following situations:

1.At that time, the wall ash was not yet dry and the wallpaper was pasted, so the alkaline substance in the wall ash was easy to react with the bottom of the wallpaper, making the surface yellow, which was difficult to deal with, and the wall needed to be removed and reconstructed;

2.After living for a few years, there is a yellowing phenomenon, most of which is caused by the aging of the paper by sunlight and air contact, at this time, you can use bleach dipped in the towel to wipe it, and then wipe it with water after half an hour, you can first do a small piece of the wall hidden place for testing, observe the effect, if the effect is ideal, you can use it for the whole wall treatment.

3.If some of the smoke turns yellow, it is best to wipe it off with a soft cloth dipped in diluted caustic soda.

1. The latex paint on the wall is affected by the climate, and the latex paint will change color under the influence of ultraviolet rays under the irradiation of the sun for a long time;

2. The alkalinity of the wall substrate is too high, and the pigment in the paint film is destroyed after seeping;

3. Salt and alkali precipitate on the surface;

4. If the dark paint film is chalking (i.e., powder dropping), it will also show light color;

5. Improper construction, and polyurethane paint construction at the same time, the TD1 component contained in this type of paint will discolor the latex paint.

Dear, the yellowing of the white wall is caused by the accumulation of dirt over a long period of time or due to ultraviolet rays, air humidity and other factors. You can try the following tricks to deal with it:1

Clean surface dirt: If it is yellowing caused by dirt, you can use detergent and a soft cloth to clean it. It is recommended to choose a professional wall cleaner, or make a cleaner such as soda and white vinegar, and be careful not to use too hard brushes or worn rags to avoid scratching the wall.

2.Use bleach: If the Zhaosha cleaner cannot effectively remove the dirt and yellowing of the wall, you can consider using bleach for the hyoch pin.

Before use, you need to refer to the product instructions, master the mixing ratio and the correct operation method to prevent damage to the wall. 3.Painted walls with latex paint:

If the above methods cannot solve the problem of yellowing of the wall, you can consider redecorating the wall.

It is a common problem to find that the wall is white after pasting wallpaper, and it usually occurs when the wall humidity is high. If it is not treated, it will affect the aesthetics of the wall, and it is easy to cause problems such as mold and peeling off of the wall. So, what should be done?

1.Identify the problem: Do a thorough examination of the whitish problem to see if the problem is caused by moisture. If it is caused by dampness on the wall, it needs to be dealt with in time, and ventilation should be increased appropriately to avoid excessive humidity.

2.Dry the wall with a dry towel: If you notice a slight whitish staining on the wall, you can use a dry towel to wipe the wall directly and wipe the surface dry.

3.Air drying: After pasting the wallpaper, you can leave the wall for a period of time to air dry, which will help the wall dry and avoid dampness or mold.

4.Wall cleaning: After the wall is dry, you can use a solution mixed with hydrochloric acid and water in a ratio of 1:5 to clean the wall, pay attention to wear protective gloves. This solution is effective in cleaning stains and mold from the base of the wall and preventing whitening from occurring again.

5.Wall paint: If the whitish is severe, it is recommended to apply a layer of wall paint after the wall is cleaned, which can effectively cover the whitish parts and also help protect the wall from moisture and mold.

In short, in order to avoid the situation of white walls, we must pay attention to moisture, ventilation, and reasonable use of wallpaper when decorating the home. If you find that the wall is white, you can take the above methods to repair it, so that the wall becomes dry and beautiful again.

Many of the interior decorations in the home are brushed with a white layer of latex paint, which is not only beautiful and generous, but also can protect the wall. However, in some places, the white wall will turn yellow for a long time, especially the place where it is blistered, it will turn yellow and then peel off and grow mildew, this is because the latex paint is easy to react with air oxidation for a long time, so what can be done to help white?

White vinegar + dish soap Pour in 100ml of water, a teaspoon of white vinegar and a teaspoon of detergent and stir well. Wet the rag and wipe the walls to remove stains and make the white walls clean.

Toothpaste: Squeeze some toothpaste over the stain. Wipe back and forth with a cloth several times and the stains will gradually disappear, and finally wipe again with a dry cloth and the walls will be as clean as new! Toothpaste contains friction agents such as calcium carbonate and dicalcium phosphate, which can be rubbed to remove yellowing.

If the white wall is soaked in water and yellow, it is recommended to remove the yellowed and peeling wall, and then scrape, paint and repair it again to restore the previous whiteness. If the area is relatively large, you may wish to redo it.

When painting the house again, when painting the final paint, you can add a fluorescent brightener that melts with hot water, which can make the yellowed walls no longer show yellow. If you only plan to paint a part of the walls of your house, mix 107 glue and a fluorescent brightener in the paint at the same time.

Latex paint is a water-based material, which is easy to oxidize in the air, and after a long time, the water paint brushed on the wall will react chemically with the oxygen in the air, resulting in oxidation and yellowing. The place where you brush first will start to turn yellow first, so it is necessary to have a sequence when applying latex paint, because if you do not apply latex paint at the same time, the wall will turn yellow. In addition, when it rains, the wall becomes damp, oxidation and yellowing, and even mildew will appear.