What mistakes lead to cracking paint on the walls

Sometimes the wall covered with paints and varnishes begins to crack and peel off. The cause of cracking may be increased temperature or humidity in a room with painted walls, as well as damage to the plaster layer, or the wall itself. But most often, the painted surface begins to peel off, exfoliate and crack due to errors that were made during its application. Below we will consider the most common reasons why the painted surface of the wall becomes unpleasant, we will also tell you how to fix the damage.

Paint peels off, lags behind the wall and cracks

Most likely, the paint was applied generously, in a thick layer. Most often, because of this, the alkyd and oil coating crack. In addition, the painting conditions could be violated - the wall was painted at too high a temperature, or there was increased humidity in the room. Also, the paint cracks when applied to a poorly cleaned surface.

To remedy the situation, places with cracks need to be cleaned well with a brush for metal, and then sanded with sandpaper of medium grain size. Apply a primer coat, then repaint again with high-quality paint of a suitable color.

Puckering (the appearance of deep cracks that resemble a dirty surface)

The main reason for this defect, as in the previous case, is a thick layer of paint. In addition, you can not paint the wall without first removing the old poor-quality coating. The cause of the defect may also be a too porous wall surface. Sometimes the paint "frowns" if it accumulates in the corners of the walls.

In order to eliminate the defect, it is necessary to remove the layer of cracked paint with a brush for metal or coarse sandpaper, after which the wall is primed and painted again. Next, the wall should be primed and repainted.
In this case, it is very desirable to use a good latex paint, which creates a more elastic, strong and durable film compared to oil paints on the wall surface.

Peeling paint

The main reason for peeling paint is its premature aging. The reason may be the use of low-quality paint, which adheres poorly to the surface of the wall and does not have sufficient elasticity. In addition, the material may have been applied too thick or the surface was not prepared for painting properly.
The surface of the wall could be deformed, which led to peeling of the coating.

Places with peeled paint will have to be cleaned to the base using a spatula and a brush for metal, and then sanded with sandpaper. If necessary, apply a layer of putty, then prime and paint again.