The wall is not scraped putty, what is the reason why the top surface is damp and white?

If the wall is not scraped putty, and the top surface is damp and white, it is necessary to see if it is caused by mildew.

If it is moldy, pay attention to the dry air in the room, and then pay attention to cleaning, this situation will not occur.

If the cement wall is damp and white, it has a certain relationship with the environment, mainly caused by moisture.

The wall is not scraped putty, the top surface is damp and white, generally speaking, it is said that the chemical reaction caused by a long time, so it will make the wall white, so it should be better to wait for it to dry before scraping putty.

It means that there is water leakage on the top surface, resulting in dampness and whitishness, and it should be waterproofed after ventilation and drying, otherwise there will be this phenomenon in the future.

It may be that the house has been built for a short time, and the house has not dried out and the inside is damp, so the top is damp and whitish.

It was caused by anti-damp, and in the summer the house was anti-damp.

Caused by moisture. Because the wall is too wet, it will turn white!

You didn't scrape putty, the bottom surface will definitely be whitish when it is damp, it's possible that he didn't go to work.

There is a leak on the top surface and the waterproofing on the top is not done.

It turns out that the cement label is not up to standard, or the weather is tidal.

Caused by water leakage on the upstairs floor, you should go upstairs to carefully check the cause and then repair the symptoms.

The wall is not scraped putty, and the top surface is damp and whitish, which may be a phenomenon of water seepage on the upper floor.

The appearance of hoarfrost on the wall after scraping putty is caused by a variety of factors, such as temperature, humidity, source of construction materials, exposure time, etc. In this case, it needs to be effectively resolved on a case-by-case basis. Here are a few possible solutions:

1.Create a good construction environment: Before scraping putty, it is necessary to ensure that the base wall is clean and flat, and the moisture content of the wall does not exceed 8%. If the humidity is high, you can use a dehumidifier to keep the air dry.

2.Choose the right putty material: The material quality of putty and the construction quality are the keys that directly affect the effect of scraping putty.

High-quality putty with good water resistance, radiation resistance, alkali resistance and toughness should be selected, and the ingredients of the putty should be adjusted according to the actual needs and the situation of the base wall, and appropriate mixing materials should be added to improve the strength and impermeability of the putty.

3.Correct construction: pay attention to the speed and technique during construction, and the putty should be scraped flat as soon as possible to avoid uneven drying, resulting in hollowing, peeling, peeling and other phenomena on the wall. Applying putty of different thicknesses on the same wall is also easy to cause hoarfrost to clear.

4.Use anti-frost agent: After scraping putty on the wall, you can use a special anti-frost agent, and the anti-frost agent should be stirred evenly before use, and evenly sprayed on the wall.

Anti-frost agent can effectively prevent the phenomenon of hoarfrost after scraping putty, and at the same time, it can also improve the ability of the wall to resist moisture and mold.

In short, avoiding the appearance of hoarfrost requires the preparation before construction to the hail of construction skills, and the use of the right putty material and anti-frost agent. Only by paying full attention to these aspects and controlling the details can we ensure that good results can be achieved after scraping putty on the wall.