Frequent errors, when performing painting, are associated with underestimated walls of the walls. In order to find out hygroscopicity, it is necessary to sple on the wall only on the wall, around 100 grams of water, and then evaluate the state of the surface. If the water is absorbed instantly, then in this case acrylic soils will be needed. Work with putty also requires a certain thorough. After its application, you must definitely wait for its complete drying. Next, wall grinding is required, using sandpaper. In the event that the walls of wooden are necessary their thorough inspection and sealing of the identified cracks by the porroster. After the porroster dries, this surface needs grouting with sandpaper.