What to do if the walls on both sides of the bathroom door are blistered and dusted

Latex paint blistering problem: the main reason is that the base layer is not properly handled, the coating is too thick, especially when the large core board is used as the base layer, it is easy to blister. How to deal with it:

You can stir well before painting latex paint, and in addition to mastering the consistency of the paint liquid, you can brush 107 glue on the bottom putty layer before painting. When reworking and repairing, the blistering and peeling place should be cleaned and repaired after brushing 107 glue.

Latex paint has the problem of penetrating the bottom: mainly when the paint is too thin, the number of times or the quality of the material is poor, in the construction should choose a product with high solid content and strong hiding power, if it is found that the bottom is penetrated, the number of brushing of the topcoat should be increased to meet the painting standards required by the wall.

According to your description, it doesn't seem to be a water leak, but an alkaline hairpit on the wall. To solve this problem, you can remove the putty layer in this part, scrape it flat with water-resistant putty, and then use an alkali-resistant primer to seal it, and then roll the latex paint.

Of course, this alkali problem is also related to leakage water. Think about it, are there water pipes passing through the walls of that location? If anything, it may be because of a slow leak in the water pipes.

And this slow leakage is difficult to detect on the water meter, and the problem can only be found by looking for a plumber to use a pressure test pump to suppress it.

If there is a water pipe passing through the wall, it may be a problem with the water pipe, the water pipe is hidden in the wall, and the waterproof layer inside is only painted on the wall (surface), so it cannot be proved whether it is a problem of damage to the waterproof layer.

The property generally does not care about this situation. It turns out that the decoration master can't find it, so find other decoration workers, and only let the master come to check to draw conclusions.

1. Analysis:

If the substrate is damp or the quality of the substrate itself is poor, it is the putty layer and the latex layer of the outer skin that are lost.

2. Solution:

Generally, you can buy a bucket of latex paint to paint it again, if it is serious, in the case of economic prosperity, you can remove the substrate, scrape the putty twice, polish it once, and apply the latex paint twice, so that it will never fall ash.

This problem can only be solved by knowing the truth, as shown in the figure, otherwise the consequences will be more serious, more information, better advice, do not do engineering, free professional and technical advice on concrete waterproof leakage repair, and avoid the trouble of repairing today, leaking tomorrow, repairing every year, and leaking every year.

This situation is not a water leakage, but the time interval between the original floor tiles and the decoration and wall painting is too short, and the moisture is not completely volatilized.

If the waterproof is not done, it is generally tested with a 24-hour full water test. But you didn't do it then, and now you just have to block all the drain and fill the bathroom with water. But this way, you can only go downstairs to see if there is any leakage.

The water level in your room will drop, but it doesn't prove that it's leaking. And after doing the experiment, he said that he couldn't drain it clean. In the future, the wall will continue to peel off the paint.

The treatment method is to shovel the part that has fallen off the paint and repaint. It's best to wait until the summer is over to do it.

Properties generally don't deal with these things.

The blistering and peeling of the wall against the bathroom is first caused by man-made or quality problems.

If it is caused by man-made, it can only be its own responsibility, and the quality problem can be replaced by the manufacturer.

In order to solve the problem of blistering on the wall, first of all, it is necessary to avoid painting in the season or weather with high humidity, and secondly, the time interval of the number of brushing must wait for the putty or paint film to dry and apply a layer, and clean up the construction environment before painting construction, and clean up the painted object.

When bubbles appear on the wall, all the blistering and peeling parts should be removed first, but if the problem is caused by the putty on the wall base, you need to remove the putty, and choose the appropriate putty to scrape again. Partial wall blistering can only be partially scraped, and the edges of the scraped part can be smoothed, then primed, and repainted; If it is a large area of blistering, it must be scraped off completely, and the wall must be dried before construction.