Today it is difficult to imagine modern repairs without the use of drywall. This building material is firmly established in a leading position among the finishing materials. It is used for the construction of partitions, the installation of suspended ceilings and the alignment of walls. Drywall is one of the best foundations for any decorative finish. But at the same time, an ideal finish can lie on such a surface, provided that it is properly prepared.
Is there a need to putty drywall under wallpaper?
Novice masters, as well as beginners who make repairs with their own hands, are wondering whether it is necessary to putty plasterboard for wallpaper. This must be done. First of all, because during the next repair, the wallpaper cannot be removed from the paper without damaging the structure of the drywall. This will cause the outer cardboard layer to slip away. Puttying drywall is also necessary because it has a certain color, which can change the shade of the wallpaper. It is impossible to exclude the presence of joints between sheets, which should be repaired in the first place.
Do I need to putty drywall for wallpaper? When this question arises, the answer is unequivocally affirmative. Neglecting this step is strictly prohibited, as this will lead to unpleasant consequences, which will be much more expensive to eliminate.
Preparatory work
Full-fledged preparation of drywall for wallpaper is the key to ideal wall decoration results. First of all, you need to prepare all the necessary tools, as well as determine the type of putty.
Instruments
To properly prepare the drywall for wallpapering, you need to purchase the following tools:
- construction roller;
- electric drill;
- mixer nozzle;
- soft and wide brush;
- stationery knife;
- clean capacity;
- spatulas;
- building grater;
- respirator;
- plastering trowel.
Materials
Each of the materials intended for putty has a specific function and is used at a certain stage. Adhere to all recommendations and existing technologies should be unconditionally, as the final result will depend on this.
Walls made of drywall for wallpaper should first be treated with a primer. It will help strengthen the surface and create good adhesion between materials. To reinforce the joints, a mesh-sickle or special paper perforated tape is used. Well, and, of course, you need a putty composition itself, which can be purchased both in finished and in dry form. It is recommended to purchase starting and finishing putty. It is best if they are released by one manufacturer, since in this case maximum compatibility is achieved.
Primer selection
Currently, a huge selection of primers is presented in construction stores, which greatly complicates the selection process. According to experts, for gypsum plasterboard surfaces, primers that are made on a water basis are considered the most optimal.
It is strictly forbidden to use alkyd-based material for gypsum plasterboard primers, since it provokes the deformation of cardboard, which subsequently begins to bubble and delaminate.
Recently, acrylic primers, which differ from each other in the degree of viscosity, have become especially popular. Preference should be given to more liquid solutions that have good penetration and hiding power.
The choice of putty
Do we need to putty drywall under the wallpaper, we have already figured out. Now you need to decide which putty should be preferred. As practice shows, every professional master prefers to use a particular brand.
Putty for drywall is divided depending on the basis on which it is made, as well as on the stage of its application. For different stages of decoration, the appropriate mixture should be used, therefore, when choosing, be sure to pay attention to the purpose.
Types of putty
By appointment, it happens:
- Starting - it is specially intended for preliminary leveling of a surface.
- Finishing - designed to eliminate minor defects and form a perfectly smooth surface. When purchasing a putty finish, the price can vary significantly depending on the place of sale and the manufacturer's company (from 300 to 600 rubles per 25 kilograms on average).
- Universal - used by amateurs to level the surface with a single composition.
- Specialized - designed for specific purposes (for example, for sealing joints).
When choosing putty for drywall joints, it is important to study the characteristics and compositional features. The following recommendations should also be considered:
- strong and flexible putty is best preferred;
- drying speed is equally important: the faster the composition dries, the better;
- It is recommended to purchase safe putty without the release of various chemicals.
Putty for joints of well-known manufacturers
The joints of drywall should be given closer attention, since it is in these areas that cracks can subsequently form, which will worsen the aesthetic appearance. In order to avoid further unpleasant surprises, you should choose the right putty composition. It is best to use a special putty designed for sealing joints. The following putties are considered the most popular and demanded:
- “Knauf Fugen” - is a relatively inexpensive tool that will allow you to cope with several tasks in the process of decorating the room. The tool was developed by manufacturers specifically for sealing joints on drywall. It differs in that for a long time the composition does not crack and does not shrink, therefore, repairs will please the owners for a long time.
- “Knauf Uniflot” is a specialized super-strong waterproof putty for filling joints on drywall. Due to its unique properties, it is this mixture that surpasses all known analogues. It features high strength, excellent adhesion and durability. Ideal even for rooms with high humidity.
- "Volma Seam" - this dry mortar is characterized by excellent adhesion and is suitable for sealing joints, as well as eliminating microroughnesses, cracks and potholes. You can apply this material on the entire surface of the sheet.
- "PG 35 MW genfir" is a dry gypsum mixture containing certain additives. Before using this composition, it is necessary to carry out a primer. Otherwise, the layer will precipitate. The mixture is intended for use in dry rooms. If you follow all the recommendations of the manufacturer will appreciate the excellent quality and the absence of cracks after solidification.
When choosing a putty, it is necessary to focus on skills, conditions of use and financial capabilities. In some conditions, one putty may be preferable, while in others it may be completely different.
Performance of work
Before sticking wallpaper on drywall, you need to properly arrange all the joints. First, they must be treated with a moisture-resistant primer of deep penetration, and the areas after that are thoroughly dried.
If it is not planned to reinforce the joints, then it is possible to process them with a high strength composition and adhesion. Many experts in this field recommend using Knauf Uniflot.
In this case, it is necessary to putty the joints in several layers. The mixture must be applied carefully and evenly. After drying, grinding is carried out. In order to obtain a high-quality result, it is necessary to carry out all work with the exception of drafts. The most optimal temperature is considered above 15 degrees Celsius. Subject to these recommendations, the composition will dry quickly, and will lie perfectly.
With properly and accurately putty seams, on plasterboard surfaces, numerous problems will be avoided in the future.
Corners
Do I need to putty drywall for wallpaper? Of course. Such work will help ensure an ideal end result. During the preparatory work, specialists also recommend using a drywall corner to align the parts of the walls. He received a huge demand due to the convenience and ease of use. With its help, it’s possible not only to build perfectly even angles, but also to ensure the protective function of parts of the walls.
Corner for drywall can be purchased both straight and arched. During installation, it is not glued, but simply attached to the structure and fixed with putty or gypsum plaster. When used correctly, it will help to greatly facilitate the decoration of external and internal corners in a room.
As you can see, plastering of drywall walls is a very important process that must be performed before applying wallpaper. The latter should only be glued to a previously prepared surface.