How to deal with alkali on the wall? How to deal with the alkali on the wall

The exterior wall can be cleaned with 2%-3% oxalic acid and rinsed with water. As for the phenomenon of water seepage on the exterior wall, it can only be waterproofed. The easiest way to do this is to brush with waterproof paint.

The alkali of the exterior wall brick is mainly caused by the moisture of the wall, and the phenomenon of water seepage in a small area on the exterior wall should be caused by the lack of fullness and density of the brick joints in the brick joints, resulting in water seepage from the brick joints to the wall in the rainy season. The water seepage and moisture on the wall directly lead to the occurrence of pan alkali phenomenon, and the two are closely related. (It is best not to mix cement in the application of Yijiao cement to avoid chemical reactions, and it can be mixed directly with water).

Precautions: 1. The exterior wall masonry mortar should be full, and it should reach more than 85 according to the requirements, and the meeting ash must be well laid or filled densely, and the exterior wall plastering mortar should be higher than the interior wall to prevent the exterior wall from being mixed with water. Exterior wall masonry mortar or batch bottom mortar can not be mixed with soil.

2. The type of cement used in the caulking mortar of exterior wall facing bricks is also very important: it is recommended to use composite Portland cement mixed with 15%-30% fly ash (because fly ash has the function of inhibiting pan alkali); Polymer caulking material can also be used for caulking; The seam must be full and dense when hooking.

Anti-alkali, because the original wall is not completely dry before the paint construction or because the paint construction is not done base treatment and caused, it is recommended to shovel off the anti-alkali position, brush oxalic acid pressure alkali, and then go to repair it, oxalic acid is sold in the local hardware and building materials city paint cabinet.

First clean up the place where the alkali is produced, then brush the alkali mold paint twice, and then scrape the putty and paint, my family just got it.

How to properly deal with the alkali on the wall, oxalic acid brushes the wall to neutralize the alkaline wall to achieve the most ideal effect!

The treatment method of wall alkali is as follows:

1. Use a shovel to remove the alkali position of the wall, and then clean the wall hygiene, no dust and stains, and then keep the wall dry enough.

2. Use a special wall separator to paint it on the treated wall. Generally speaking, it should be applied 2 or 3 times, and each application needs to wait until the previous one is dry.

3. After painting the separator, wait for 24 hours, and then use putty plaster to scrape the wall, pay attention to the construction thickness within the standard range, and do not miss the brush. Then wait 5 hours for it to dry, and then sandpaper the wall to smooth out.

4. After the putty paste is completely dry, you also need to brush a layer of latex paint on the surface of the wall, which is generally more than two times of construction, and finally wait for it to dry naturally.

First of all, the walls need to be thoroughly cleaned, then applied with alkaline paint, and finally brushed with putty, the whole construction process needs to be operated by professionals, otherwise improper operation will cause further damage to the wall. Related knowledge popularization: 1. When decorating, we must do a good job of waterproofing, first of all, we need to choose a paint with good waterproofness, so as to avoid the wall being damp and causing cracking.

If the waterproofing work is done, you also need to open the doors and windows regularly when using the room to make the air inside the room smooth. 2. Not only is the damp air causing the wall skin to be wet, but it is also possible that the putty powder is not allowed to dry during the decoration, so it is directly brushed with paint, which will lead to a certain alkali on the wall. 3. When decorating, we must choose some good quality cement and paint, otherwise the materials are of inferior quality, and the crystallization of the stone will be coarse during construction, and the alkali content will be too large.

4. When using the room, we must pay attention to the maintenance of the wall. Usually can be done regularly, in addition to the wall do not paint at will, in the room can be placed some green plants, can ensure that the air in the room is fresh, if the wall alkali does not know how to remove, you must contact professionals in time to operate.

In our life, we often encounter the phenomenon of a layer of hoarfrost on the wall, which is actually due to the wall dampness or waterproof function is not done well and causes the wall alkali phenomenon, which will seriously affect the indoor beauty and needs to be dealt with in time, so how to deal with the wall alkali, the following article will introduce it to you.

1. Completely clean the wall.

First of all, use a shovel to remove the putty on the peeling wall, and then use a wire brush to brush off all the alkali scale and floating ash on the surface.

2. Use alkali elimination paint to apply to the wall.

We can buy some alkali elimination coatings on the market, such as alkali elimination No. 1 AB group, etc., and brush them on the wall that has just been cleaned after mixing, and we need to ensure that there are no gaps in the wall when brushing, so as to prevent the occurrence of alkali on the wall to a certain extent.

3. Re-scrape putty and paint.

After waiting for the wall to dry for 24 hours, we can re-scrape putty and level the wall, and then apply latex paint or paste wallpaper, so that there will be no alkali return in front.

What are the causes of alkali on the wall?

1. Indoor waterproofing is not done well.

If the indoor waterproofing project is not done well, it will lead to leakage on the wall, which will cause the wall to become damp and the moisture cannot be dissipated.

2. The original wall surface is damp.

Usually when we decorate the house, the house is a newly built building, the wall humidity is nothing more than **, the wall of some houses is relatively wet, and the later putty powder latex paint causes too much moisture inside the wall, which is easy to lead to alkali on the wall.

3. Caused by moisture on the wall.

Most of the wall alkali occurs on the first floor or in the basement, mainly because the ventilation in these places is relatively poor, and the hot air flows to the ground and turns back after being cold, which will form moisture on the wall, resulting in alkali on the wall.