Today, plasterboard has become very popular.a material that is used for various purposes in home repairs. They level the walls and protect them from moisture. Dry plaster itself cannot be a finishing material, so it requires additional finishing. Paint, wallpaper, PVC panels and other materials can be used as such. Wallpaper is often chosen as a finishing material. Pasting them does not take much time, and the process itself is very simple. Before applying to drywall, several preparatory measures should be taken.
Before you start wallpapering a plasterboard wall, the surface must be prepared for finishing: filled and primed.
Preparation for gluing
So, the whole work can be described in the following stages:
- priming of the GCR surface;
- the use of a serpent for sizing all the joints;
- shpatlevanie entire surface of drywall sheets;
- grinding of the parched surface;
- priming of putty;
- work with wallpaper.
It must be said that all stages, except the last one, relate to the preparation of the walls.
Figure 1. Wall priming scheme.So, it all starts with the initial priming (Fig. 1). This should be done using the GKL-1 primer or any other acrylic-based composition. It is very easy to prepare the correct primer. Each of the cans contains instructions that you need to follow. As for the application process itself, this can be done with the following tools:
- roller;
- with a broad brush;
- wide brush.
After the primer has dried, you shouldglue all the seams of the plasterboard sheets with a special reinforcing mesh - serpyanka. The mesh is made of lavsan or fiberglass. It is impregnated with an adhesive substance, so it sticks perfectly to the plasterboard. The main task of such a material is to mask all the seams and cracks on the surface. The next step is to start puttying the surface (Fig. 2). Initially, all the seams and cracks glued with serpyanka are puttyed. The putty mesh will act as a kind of beacon.
Figure 2.Scheme of puttying seams of plasterboard panels. After working with the seams, putty the remaining surface. It is most convenient to work with 2 spatulas - wide and narrow. With a narrow spatula, we collect the required amount of putty solution and apply it evenly to the wide one, with which this solution is evenly applied to the plasterboard. It must be said that such work is quite long and expensive, but necessary. This is explained by the fact that sooner or later the wallpaper will have to be re-glued. In this case, the old ones must be removed. In the process of this work, the paper layer of the plasterboard sheets can be damaged. To prevent this from happening, they are puttied. Putty should be applied in several layers:
- first apply a thick layer of cement putty (thickness of about 2-3 mm);
- the surface is primed;
- The second layer is applied with a finishing coat of gypsum composition (thickness 1-2 mm).
The final layer should be about 3-4 mm thick.thickness. Complete drying is observed the next day after the work. The next step is to finally level the surface before gluing the wallpaper. This can be done with sandpaper or a special grater. You can find such a tool in any hardware store. It consists of a plastic block with a handle and Velcro, and a mesh. The mesh serves as sandpaper, that is, it is used to clean off all the unevenness of the putty. As for the use of sandpaper, it is best to have 2 types - coarse-grained and fine-grained. The initial sanding is done with coarse-grained, and the finishing - with fine-grained. The last stage of preparing the walls is their priming. This time, the primer is applied to the putty surface. It should be said that before this procedure, it would be a good idea to clean the walls from the dust that formed as a result of sanding. Return to the table of contents</a>
Pasting of the prepared substrate with wallpaper
This work also has several stages. Their sequence looks like this:
Layers of plasterboard putty.
- preparation of glutinous composition;
- preparation of wallpaper;
- pasting.
The dry adhesive mixture must be prepared according to the followinginstructions, which are indicated on each package. It is necessary to pay attention to the correct choice of glue. Now it is classified according to what wallpaper it should be used with. That is, one glue is used for paper wallpaper, and another for non-woven wallpaper. While the glue is infusing, you can cut the wallpaper strips to size. If all the corners in the room are the same height, then you can cut many strips at once. If the walls are uneven, then it is better to cut 2 strips. Both strips are smeared with ready-made glue and folded so that the glue does not get on the outside. They should be held in this position for several minutes. After this, the wallpaper is glued to the drywall using a damp cloth or a special foam roller. Each strip is applied to the wall and, starting from the top, is leveled with a rag or roller. It would be a good idea to lay some more rags underneath so that the remaining glue falls on it, and not on the floor.
Figure 3. Scheme for gluing wallpaper onto drywall.Next, the wallpaper is glued to the plasterboard (Fig. 3). It is important to constantly select the pattern. As for such moments as switches, batteries, windows and other "obstacles", here they proceed as follows: first, they glue a strip, then cut out the required piece for the switch or battery. In the case when the obstacle is very large (for example, a window), then separate pieces are cut out in the outer strips, and smaller strips are glued on top. In this case, they are glued vertically, selecting the pattern above and below the window. It is best to cut holes with a stationery knife. At this point, the entire technology ends, and only a few tips remain:
- wallpaper on gypsum board is glued in a room without drafts at normal temperature and humidity;
- after work, the room is completely closed and left for a day, so that the material is normally glued to the walls;
- if during the day there are detachments or air bubbles, then the same wallpaper paste through the syringe is introduced into such places.
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Required tools and material
To glue the wallpaper you will need the following tools and materials:
- brushes and rollers for priming;
- primer for gypsum board, primer for putty;
- Sickle patch for suturing and taunting;
- leveling and finishing putty mixes;
- a set of putty knives and containers;
- Sandpaper of different granularity, grinding grater with replaceable grids;
- wallpaper paste and wallpaper;
- roller for smoothing;
- scissors or clerical knife.
Of course, other materials, such as rags, may also be useful in the process. Return to Contents</a>
Brief conclusion from all the above
As you can see, preparing the plasterboard surface for gluingwallpapering, as well as the pasting itself, are simple tasks that require only patience and diligence. However, the preparatory stage is often not carried out in full, which leads to repeated repairs. For example, very often the putty is applied in 1 thin layer. From weak blows, which simply cannot be avoided in everyday activities, it simply crumbles, which leads to peeling of the wallpaper. For this reason, we can safely say that proper preparation is the key to success!
