Walls

Preparation of walls for decorative plaster: rules for priming

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Preparation of walls for decorative plasteris made with internal and external decoration of the building. It hides the fine defects of various coatings well. The mixture is easily applied to the surface during major repairs of the house or during its erection. Preparation of walls for decorative plaster is done with a primer, a grinder, a construction vacuum cleaner, a sponge, and putty. Preparation of walls for plastering Before the process of preparing the walls for decorative plaster, it is necessary to remove any residual finishing materials and other visible defects from all surfaces.

Fundamental rules

Concrete or reinforced concrete structures in front ofplastering covered with a wavy notch. Sandblast technology is used for their roughness. Preparation of walls for decorative plaster provides for the removal of paint, filler and wallpaper structures. The coating is dust-free with an industrial vacuum cleaner. Such plaster is not applied to the structure, if it has oil stains. They can be removed with a solvent. Then wash the surface with a mild soap solution. The cleaned wall under the decorative plaster is inspected. If it is loose, then it is treated with a primer with a strengthening or restoring property. For this, builders recommend using the following mixtures:

  • Acryl-Hidrosol - for crumbling structures;
  • Tiefgrund TV - for gypsum board or gypsum composition.

Scheme of preparation of walls for decorative plaster. If the room in which the decoration of the decorative plaster is provided has a high level of humidity, then the surfaces are treated simultaneously with antifungal solutions. For the cracking of cracks, a grinding machine with a diamond disk is used. These defects are filled with the appropriate composition. Volume and deep cracks are embedded with a similar solution, which is applied in several layers. If the walls are primed, then putty is laid. Its tasks include leveling the surface. The next stage involves wall filling. If the final mix is ​​applied in a thick layer, then this step is not mandatory. Otherwise it will be necessary to make a flat surface. The base putty dries more than 24 hours. To prevent cracking of the previous composition, a self-adhesive mesh-serpyank is used. It is laid on the cover with a special wide spatula. Each layer of putty is dried and covered with an acrylic primer. Builders recommend using a mixture of deep penetration. They differ from the usual primer with high adhesion. Back to contents</a>

Basic constructions

To make the putty not exfoliated, it is producedimpregnation. Experts do not recommend the use of compositions based on alabaster or oil. The next step is to polish the surface. To do this, apply fine-grained sandpaper. Decorative plaster can be laid on a special primer. Tools for plastering walls. There are certain rules for applying the last mixture. The thickness of its layer should not exceed 20 mm. Grouting the primer provides for its considerable compaction. The grinded and compacted mixture is divided into squares. The composition is applied to the surface of the walls. Constructions should be moistened for 1 week. For this, the coating is treated with a damp sponge 3-4 times a day. The coating is treated with a smooth or textured decorative plaster. Initially, a sample is carried out. On the surface, choose a place that is covered with a finishing material. Such a solution will allow you to see the actual texture of the new coating, including its color. If a smooth and textured decorative plaster is applied on one wall, then a paint tape is used to create a smooth transition line between these blends. The structure is covered with the first compound and the last material. Then the surface is trimmed with a texture analog. If the decorative plaster is applied to the GKL coating, then the preparatory work involves the use of moisture-insulating primers. The paint net is laid in the seams. If the walls are painted with paint or enamel, then they are matted. To do this, use a grinder or a skin. Upon completion of this work, a rough wall is obtained. She does not take soil compositions well. If the decorative plaster settles on wooden walls, then first they mount the shingles. The preparation of brick coatings provides for the choice of solution sagging in the seams and the application of incisions.

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