What causes alkali on the wall? How to repair alkali on the wall

We all know that alkali on the wall is a common problem. This problem will occur on the walls of many people's homes, which will affect the appearance of the wall and require us to deal with it in time. Alkali on the wall is related to weather and construction, etc. So how to deal with alkali on the wall? Let's take a closer look!

What does wall alkali reaction mean?

Alkali reflux on the wall is caused by a white spot on the wall, and then a white crystal is felt when you touch it. This is mainly caused by alkali reflux on the wall. However, there are actually two types of alkali reflux on the wall. The first is alkali reflux on the wall caused by water leakage, and the second is alkali reflux on the wall itself.

Why does the wall reflect alkali?

1. Generally, there is more alkali reaction in the south during the return of the south wind because the air is relatively humid. When the humidity in the air is very high, when it encounters the paint on the wall, it will condense on it and form water droplets. If the water droplets adhere to the wall for a long time, alkali reaction will definitely occur. Not only the wall, but other things with water will also become moldy and deteriorate.

2. One is that when painting the walls, the paint used is not effective in preventing mildew. Today's paints are of different qualities, and people who don't understand them generally don't know. They are advertised as waterproof, mildew-proof and anti-fouling to deceive consumers. In fact, the products used are inferior products. You can compare them with your own house. Generally, these problems are most serious in balconies or kitchens with high humidity. If the product used has poor anti-mildew effect, then water vapor will easily enter the wall, so you must choose wall paint carefully when painting the wall.

3. Another reason is the construction. I don’t know what kind of construction team you look for when painting the wall. Is it the roadside construction team recommended by others or a professional wall painter? Anyway, when I go to the owner’s house, most of the time, the unprofessional construction team has the most wall problems. During the construction process, you may know that the paint needs to be diluted. Some people over-dilute the paint to save materials and make a profit from it. Then the unlucky owner is the one who spends money. Not to mention, the wall will be moldy soon.

How to deal with alkali on the wall

1. Cleaning

There are many reasons for the alkalinity of the wall, and the consequences are mostly peeling, powdering, bulging, etc. If you want to restore the original smoothness of the wall, you must first clean the wall. Use oxalic acid, disinfectant or other strong cleaning products to do a "big clean" for the wall. The area is the area where the wall is alkaline, and do not clean the entire wall.

2. Flatness treatment

Use tools such as shovels, sand, floor glue, etc. to deal with uneven walls and lay a foundation for later painting of the walls.

3. Painting

After the wall surface is flat, apply the interface agent to improve the performance of the wall surface and pave the way for the later painting. Then apply the putty, which needs to be applied two to three times, and finally apply the primer and topcoat. The alkali treatment of the wall is completed, restoring the original cleanliness.

To avoid the wall alkali from happening again, which will damage the beauty of the room, keep the wall dry and clean, open windows more often to ventilate, and keep the air flowing. The chance of wall alkali is very small. If the wall alkali occurs, timely treatment is required to keep the home clean and tidy.