Before applying varnish or paint to the wall, you need to do a lot of serious and difficult work on its preparation. This ensures the durability of the coating, its attractive appearance and durability. The preparation usually takes place in several stages, and for each type of surface you need to use your own special preparation methods. The main work is the removal of the old finish, applying plaster and primer.
Conditions under which preparation and staining should be carried out
If you plan to perform outdoor work, then you need to make sure that the weather is dry and calm. Humidity should not exceed 85 percent. If waterborne paints are used, then it is best to apply them on the surface at a temperature that is above +5 degrees. This is due to the fact that the time during which the product will dry out depends on the temperature. There should not be any dirt or drops of water on the surface. It is also not recommended to perform work in very hot weather, when direct sunlight falls on the surface.
If it is supposed to carry out internal work, then they should be carried out after the installation of doors and windows. However, it should be remembered that it is best to work in a respirator, as well as in rooms, there must be a very high-quality ventilation system. When preparing the surface for painting, it is recommended to use materials belonging to the same brand of paint for this.
Surface preparation procedure
Initially, the cleaning of all surfaces from contamination or residues of past coatings begins. Also at this stage, all existing cracks and holes are filled. After applying the putty, the surface begins to be primed so that it turns out to be homogeneous, as well as to significantly increase adhesion. You can apply the tool with a brush and a roller, and it is important to apply it in the transverse directions. If the primer is applied to the ceiling, then you must initially direct all movements perpendicular to the light and only then in the opposite direction.
The primer should be selected very carefully, since it must be suitable for the product with which the surface will subsequently be painted. Also, when choosing, you should focus on the state in which the surface is.
The last step is putty, which is carried out by transverse movements from top to bottom, and this can be done from left to right.
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