DIY wall plaster is not easy and it requires not only experience, but also knowledge.
When the basis of the surface is a simple brickwork on which the air conditioner is supposed to be installed, it is best to use the plaster mixture on the cement. This is the cheapest way. In addition, it is allowed to put large thick layers, even in some cases it is simply necessary. But when you need to apply a layer of more than twenty millimeters, then plaster should reinforce a specially designed net.
If gypsum decoration is performed during internal work on the arrangement of walls, then the primer of the brick wall can not be carried out if there is no dust or oil spots on the wall. So simple construction brick is plastered.
In the case when you have to do work on the facing brick, then the situation is already more difficult.
Plaster of facing brick
To solve this problem, you will have to apply special primers and reinforcement.
The technology, it is worth noting, is not simple and it is best to invite experienced craftsmen to fulfill it.
Due to the slight porosity of the facing brick and the smoothness of the surface, the plaster is quite poorly adopted with the material. As a result, the composition begins to exfoliate in pieces. There are times that even with the net.
If the reinforcement is made qualitatively and pieces of plaster do not fall out, then still, after a certain time, cracks will be noticeable on the surface of the plaster.
Plaster of the concrete surface
For a concrete wall that is very smooth, a plaster solution is required, which contains gypsum.
In this example, the primer must be carried out over the entire surface.
The best plaster materials on the gypsum are mixtures where there are particles of quartz, that is, sand that gives a smooth surface a certain roughness, which makes it possible to ensure good grip of the composition with the surface.
In any case, the plaster of the walls with your own hand — the event is rather painstaking and unpleasant, it is much more convenient to hire a team that specializes in such work.
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