The first stage is the preparation of the
foundation. At the very beginning of any work, it is important to prepare the surface. That is, clean it of old plaster and paint. If this is a new building, the walls must be cleaned of dirt, dust, grease and bitumen stains. Stains from paint are removed with the help of soldering lamps by burning out, or with the help of a special solution. A solution is prepared in a ratio of 8: 2, where 8 is a lime mixture and 2 is an aqueous solution of caustic soda.
Insufficiently rough walls are to be cut or incised for better adhesion( adhesion of plaster to the wall).In some cases, a sandblaster is used.
If plastered brick walls, which have filled seams, they pre-insect or scratch at a depth of about 10-15 mm. The dust formed after the process is removed. If the seams are not filled, the notching is not done, as the walls already have the necessary roughness.
The second stage - spraying
The main goal of this procedure is a strong adhesion of the solution to the surface to fill the existing irregularities. It is the first( initial) layer of plastering. For spraying use a liquid enough plaster( creamy consistency).
Before being sprayed, the substrate is wetted with water. Apply the solution by "throwing", while the thickness of the resulting layer should not be more than 5 mm. Only on wooden substrates can the layer reach 9 mm. Most often this layer is not smoothed and not leveled.
The third stage - priming of walls
Primer is applied to the spray with a continuous layer. The thickness of the layer when using lime-gypsum solutions should be about 0.7 centimeters and when using solutions containing cement, about 0.5 centimeters.
If one layer was not enough, then a second thicker layer is applied. Only put it is worth it when the first one has already grabbed. The primer is sprinkled, plastered and leveled with a special semitrailer, the length of which is 70-100 centimeters. In this case, the direction of movement of the semitraver can be any.
Fourth stage - plastering of walls
This stage can be divided into 2 types: plaster of walls of a bathroom for the subsequent furnish( drawing of a tile) or drawing of a decorative decorative layer. The difference between these two types consists only in the correct choice of materials and the thickness of the layer. Finishing of the bathroom with decorative plaster is done with a layer thickness of about 0,4-0,7 centimeters, and usual up to 0,2 centimeters.
The technology of plastering is quite simple. First, the soil is wetted. Further on the edge of the wide spatula is applied the composition of the mixture and spreads evenly over the wall. When spreading, it is advisable to hold the spatula at an angle of 15-20 g. The non-hardened layer is rubbed with a special float. Circular rotations are made against the clockwise direction. When trowelling on the protrusions, the grater is pressed slightly, and with the depressions it is vice versa.
If the rendered textured plaster in the bathroom, then this layer is applied an invoice, decorative layer. Use a narrow spatula with a width of 8-12 centimeters. At this stage, any patterns and drawings can be created. The movements of the spatula can also be varied. It can be: circular, "up and down" movements and many others.
«Attention! When applying the plaster, it is advisable to always take precautions - wear protective gloves, gauze bandages, glasses. "It is also important to monitor the level of humidity and air temperature. The higher the temperature, the faster the coating will dry. After use, rinse thoroughly with water after use. The remaining material must be kept closed.
