Causes of peeling of Lanzhou city wall and its treatment methods

After decoration, the wall surface is powdered, peeled and discolored. This is the most common and difficult problem in wall decoration. The wall problems caused by different reasons have different solutions and cannot be generalized. Otherwise this method is likely to get twice the result with half the effort. So, what about the peeling of Lanzhou city wall? What is the reason for the peeling of Lanzhou city wall? Here is a brief introduction to how to peel the wall in Lanzhou.

Lanzhou wall 1 peeling, sun discoloration.

For buildings with large lighting area, buildings with insufficient air circulation and buildings with walls directly exposed to sunlight, the temperature is too high. Crystallization of water-soluble salt will cause discoloration, discoloration, and color will break or even crack. The temperature difference causes the surface of the wall, and also causes the wall to fall off.

Corresponding methods: when the sun is strong, opaque curtains are used for the sun protection wall, and attention should be paid to the cooling of the wall and the balance of indoor and outdoor temperatures; Use high-quality latex paint with light resistance and aging resistance when decorating.

2. The wall is wet and separated.

In one case, if the paint is not completely dry when the bottom of the wall is wet, brush it. Secondly, in rainy season and rainy season, the air humidity is very high, which makes the wall wet.

Corresponding method: avoid painting works when the humidity is high in spring and summer. If it is inevitable, you can use the spray gun method, and the wet wall is the original wall. Remove clean powder and apply glue on the wall to increase the adhesion of putty. Then according to the normal process, pay attention to the wall to dry, and then continue to the next step. It is best to use waterproof paint and walls as putty. Change it to elastic and scrub-resistant.

3. Insufficient discoloration of architectural coatings.

Strong dry paint should not be applied at the same time as painting. If this series of polyurethane paints and coatings are painted at the same time, the latex paint contained in the coatings will change color TD 1 component.

Corresponding method: paint for two days (25℃), paint latex again (25℃), and then paint for seven days after the paint or latex is completely dried.

Lanzhou wall peeling treatment method Lanzhou wall peeling 1, remove the peeling part of heavy putty.

If the white wall or exposed wall is partially closed or slightly cracked, you can eliminate the problem and remove the edge of the removed part. Then, scrape off the putty, coat it with basic paint, brush it again, and make it up again. The color may be slightly different from the original wall.

Lanzhou wall skin II. Professional reinforcement of foundation

For severe partial shedding, it is necessary to consider whether the wall substrate is completely incomplete. Remove it from the original wall and the bottom wall, seal it with interface agent or primer and repaint it, then move the wall coating three times and smooth it according to the grade of gypsum mesh fabric. At this time, the quality of the grassroots will be much better.

Lanzhou wall peeling 3, covering the top of the part directly brush.

If it is a simple fading, it is usually recommended to cover a new round of primer and similar topcoat with a roller brush. But before construction, it is necessary to judge the quality of the putty layer on the wall at this time: choose the faded wall. The worst piece of water is soaked in water and then soaked with a shovel.

Lanzhou wall skin 4. Remove the old wall and complete the construction.

The whole structure is equivalent to renovation. The largest amount of work is suitable for walls with many cracks, peeling and dust.

Analysis on the causes and treatment methods of peeling on Lanzhou wall.

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