To repair the plaster, a solution should be used, the composition of which is similar to plaster. The most successful option in this case will be to purchase a finished dry mixture. If you are going to glue the wall in the future with wallpaper, then you can use any compatible plaster mixture. It is likely to stand out in color, but under the pasting wallpaper this is permissible.
Cracks and potholes in plaster must be cleaned of damaged edges. Thin cracks must be expanded and deepened to 10 mm. Wide cracks must be deepened to the entire thickness of the plaster. After that, the crack must be moistened with water or primer so that the new plaster is grasped from the old. If the surface was poorly moistened, then new cracks may occur. After that, the repaired place must be filled with a solution and leveled with a spatula. Когда раствор немного присохнет и перестанет тянуться за теркой, производят затирку круговыми движениями. In this case, the grater needs to be constantly moistened, dipping it in water. If you wipe the solution early, then it will crack, if it is too late, then the solution can crumble.
If you use a primer, you must adhere to the instructions written on the package. Although if you repair cement plaster with cement mortar, it is better to work wet on wet, despite the instructions. But it is better to use repair compositions based on the same astringent as plaster.
It should also be remembered that cement -based plaster. After drying on their surface, small cracks form. To eliminate them, they are rewinded. First, the plaster is cleaned of whitewashing or the remnants of the wallpaper glue, and then moistened with water. Pluture grinding is made in small areas. A solution of cream -shaped consistency is applied with a brush on the wall. You can also use a grater for application. The wall must be wet. The solution consists of equal parts of sand and lime dough. Cement -based solutions for grinding should not be used.
The solution is rubbed in circular motions, while the tubercles are cut off, and the pits are filled with solution. If there are rather deep pits, then you can remove the solution from the side edges of the grater and cover the pit with a trowel. Where the protrusions are noticeable on the plaster – the tower is pressed stronger, and where the depressions are weakened by the pressure. Do not forget to wash off the already dried solution from the graters. To eliminate circular stripes on plaster after a circular grout, a grout is carried out in a run.