Primer for walls is a special solution of liquid that is applied to the walls before the finishing work, the primer can be of different composition and color, before choosing a primer for walls, For which the primer is applied to the wall. In construction and repair often used primer for the treatment of walls and ceilings, before the finishing works. It will be correct to use a primer in all rooms to prevent the appearance of fungus and mold, to ensure a good view of the room after repair.
- Primer for wallpaper in the room - what it is needed for
- Types of primer for walls under the wallpaper
- Which primer is better for the wall for wallpaper
- Primer for wallpaper: which one to choose
- White primer underWallpaper: a distinctive feature of
- Primer for drywall under wallpaper
- When to glue wallpaper after priming the walls: tips
- How to choose the primer( video)
Primer for wallpaper in the room - what is it for
Even if the premise is dry, well ventilated and the mold and fungus do not appear, it is better to primer the walls so that the wall-papers fit well on the wall and hold tight.
Obligatory priming of walls for wallpapers should be carried out in the following premises:
- Premises with high humidity;
- Premises with uneven walls and wall defects;
- Premises with insufficient ventilation.
Primer only improve the look of the room after repair, so it can be used in all, even in rooms with good wall conditions. The properties of the primer are very useful for walls, the primer penetrates deep into the wall structure, filling small wall cracks, disinfects and strengthens the surface.
Primer components provide a stronger bonding of materials to the treated wall surface, reduce the consumption of glue when wallpapering.
All types of primer for interior work are made of safe joints and have an environmentally friendly composition, therefore absolutely safe for human health.
Kinds of primer for wall for wallpaper
Primer for walls is of different compositions, as well as the basis of walls in the room, so the main factor in the successful repair and decoration of the walls is the right choice of primer for a certain type of walls in the room.
The main types of primer for interior work are given below.
Primer of alkyd composition is used for priming wooden and metal walls, even if there are metal mesh, pile and overlapping under plaster, alkyd primer is suitable.
Acrylic primer is suitable for walls of all types of wall bases except aluminum surfaces.
If there is metal piles, overlapping or mesh in the plastered wall, the acrylic primer is not suitable, it oxidizes the metal.
Mineral primers are suitable for any type of wall surface, and their main advantage is the leveling properties of the cement that is part of the primer. Special primers( Pufas) are widely used for all types of wall surfaces, in addition, special primers protect the walls from moisture, mold, fungus and various kinds of parasites that can form under the wallpaper and in the wall. Apply primer to the walls with a roller or brush.
When choosing a primer, you need to be guided only by the surface of the walls of the walls, selecting a more suitable primer for a certain surface.
Which primer is best for walls for wallpaper
Before buying a primer under the wallpaper, you need to decide on the type and condition of the walls in the room, and also know exactly the purpose of the rooms. For rooms with high humidity and wall defects, it is better to take a special primer that protects against mold and fungus and parasite formations under the wallpaper and in the wall, a special primer will level out small irregularities and block small cracks in the wall.
Universal primer of a special composition, you can primed all types of walls. For normal dry well-ventilated rooms, you can choose an acrylic primer, which is suitable for all types of surfaces, except for metal. To achieve a good condition of the walls after the wallpaper is pasted and the wallpaper is well adhered to the wall, it is better to use several types of priming compositions.
After having walled the wall several times before wallpapering, the wallpaper will lay down easier, they will be better attached to the wall, the walls will be protected as much as possible from the effects of various types of fungus and mold.
When priming the wall for wallpaper, the first coat should be applied with a special primer that will fill the small irregularities of the walls and protect the surface of the walls from the formation of parasites, molds and fungus.
After the first layer of the special primer has dried, it is possible to apply the next coat of primer, preferably acrylic:
- It dries quickly;
- Easy to apply;
- Virtually odorless.
After complete drying of the walls after the primer, you can proceed to gluing the wallpaper, not forgetting to choose a good and resistant adhesive for certain types of wallpaper.
Primer for wallpaper: which one to choose
In specialized construction shops there is an abundance of choice of primer mixes for various wall coverings. Both domestic and foreign manufacturers offer very high quality and time-tested primer mixtures.
The company Unis, Decor, Pufas, offers a primer for wallpapers of different composition:
- Liquid mixtures;
- Powdered mixtures.
Liquid primer mixes are usually ready-mixed solutions that can be applied directly to the wall. In some cases, the liquid primer is diluted with water to achieve a more rare consistency. On sale there are also powdery primer mixes which are dissolved independently, choosing that consistency which is suitable for a certain surface. What kind of a primer for the structure to choose for repair, you will have to decide for yourself.
It is most convenient to use a liquid primer, which has already been diluted to the desired consistency.
Priming the walls with your own hands, you can use powdered primer mixes that are easy to bring to the desired consistency, having on hand the necessary attributes such as a bucket, water, brush, gloves.
White primer for wallpapers: a distinctive feature of
White primer is most suitable for priming walls for wallpaper, it hides dark plaster transitions on walls, well masks spots on the wall surface and levels out small irregularities and wall defects. White primer is suitable for all kinds of wallpaper.
The main advantages of the white primer:
- The primer falls well on the wall;
- Evenly brightens the surface of the wall, regardless of the color transitions of the wall;
- Provides a strong wallpaper hooking with the wall surface.
The ideal white primer that can be used for wallpapering is the PRUTAS primer. It is available in cans of various capacities and has a gray color in the original, but do not worry and consider it expired, defective or unusable. Before you begin to primed the wall, the primer should be well moved, during its application to the wall and drying, the wall will turn perfectly white.
White primer can also be used for liquid wallpaper, its thick consistency perfectly balances the small and medium defects on the walls.
Primer for drywall under wallpaper
Now it is possible to glue wallpaper not only on the prepared walls, but also on drywall, this is an ideal option for those people who often make repairs and change the interior.
On walls and ceilings from plasterboard it is possible to paste wallpaper only after puttying of seams and priming of a surface. Both plaster and gypsum plasterboard primer should be white, otherwise drywall sheets can be gleamed through the wallpaper, and if they are also waterproof and have, as a rule, a blue or green color, so even more will shine through the wallpaper, giving the wallpaper a darker tone.
In order to paste wallpaper on a drywall, you need to perform several stages of work:
- Progutt OSB sheets;
- Puttying gypsum paste seams;
- Align the seams;
- Prime the surface again.
It is necessary to wait for complete drying of the walls before wallpapering, otherwise the wallpaper will not stick tightly and will lag behind.
After the primer has completely dried on the surface of the wall, wallpaper can be glued, gluing well the joints of the wallpaper.
When to glue the wallpaper after the priming of the walls: tips
You can glue wallpaper after priming the walls only after the wall has dried completely and the moisture evaporates.
Walls must be completely dry, the slightest wet areas on the wall surface are not allowed.
How long will the wall dry after applying the primer mix depends:
- From the penetration depth of the primer;
- From the air temperature in the room;
- From wall surface material;
- On the type of priming mixture.
The deeper the primer penetrates deep into the wall, the longer the wall will dry.
Deep penetrating primer mixes last longer than others. To dry the primer quickly, the room should be at least +15 degrees and not above +35 degrees otherwise the drying period will be prolonged, and in case of high temperatures in the room, humidity will also appear.
Wall materials also release moisture in their own way. On concrete, brick, plasterboard surfaces, the primer dries in 6-12 hours at a temperature of +25 degrees.
On the putty, the primer dries in 4 hours, at the same temperature. Quick-drying soil mixtures dry for 2-4 hours. The fastest dry acrylic ground mixtures, and most slowly, alkyd.
How to choose the primer( video)
To make the primer dry faster on the wall surface, you can turn on the heating or ventilation in the room. Carrying out repairs, always need to take into account recommendations from the manufacturers of building materials, then it will be easier to perform the work, and the result will be good. Working with the primer under the wallpaper, the main thing is not to rush the process and to stand time while the primer on the walls dries.