How to choose a primer for walls for wallpaper?

Pre-priming the walls under the wallpaper is a preparatory stage, and do not neglect it. But not everyone uses this stage before wallpapering. In this connection, the question arises, what gives this process? Is it needed in principle, and if so, what kind of primer should I choose for walls for wallpaper? These important repair issues are the focus of this article.

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Primed walls - a necessary intermediate stage of repair work

As for wallpapering, the preliminary impregnation of the walls will provide not only better gluing, but also a more presentable and beautiful appearance.

Why is primer necessary?

• Strengthens the surface. A building mixture of this type penetrates deep into the pores of the upper layer of the wall and acts as a bonding material, which significantly strengthens the structure of this layer. Allows you to prevent the destruction of the wall, when dynamic or static loads are exerted on it.
• Saves materials used for further repair work. This applies both to tiling wall surfaces, and pasting them with wallpaper or ordinary painting. The pores of the upper layer of the wall are filled with soil, creating a thin but dense film, which subsequently interacts with a particular material. After this finish, the glue will be distributed more evenly, therefore - its consumption will be less.
• The degree of adhesion between the applied material and the top layer of the wall increases. Adhesive materials intended for wallpapering are better fastened to the primer, thereby more reliable adhesion of materials can be achieved.
• There are no perfectly even walls, as practice shows, and wallpaper glued to a non-primed surface may, over time, highlight them in the form of spots or even begin to recede.

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Where is the primer applied?

The technology for gluing most types of wallpaper provides for mandatory primary processing of the walls with a special coating. But the main thing here is to correctly determine which primer to choose for the walls for wallpaper.

Pre-priming does not require only high-quality painted surfaces, as well as walls covered with durable finishing putties. It is imperative to apply a firming impregnation on loose, crumbling surfaces.

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The best universal primer

In construction stores, various types of impregnations are sold, which, in addition to strengthening, also have other useful properties, for example, deep penetration soil. As an impregnation, diluted adhesive for wallpaper can be used, but nevertheless, it is better to choose a special building mixture. It is an inexpensive guarantee of high-quality subsequent wallpapering. If you still think, primer for wallpaper - which one to choose, the best option for wallpaper is a special white building mixture.

Features of the use of white impregnation:

• The mixture can be applied to almost any surface (painted walls, old wallpapers, drywall walls), while contributing to the alignment of color.
• Such a building mixture is ideally suited for further gluing non-woven wallpaper that is translucent, and wallpaper for painting.
• Before applying it, the walls need to be cleaned of the remnants of the wallpaper that are peeling off, the paint should be sealed with putty cracks.
• Apply the impregnation with a brush, roller or spray gun. Instructions are always attached to the package, which indicates in what proportions to dilute the composition with water.
• The instructions also indicate the drying time of the composition. On average, it is from 6 hours, however, it is recommended to start gluing no earlier than in a day.

Important! When choosing a product, one should pay attention to both the type of surface where it will be applied and the type of wallpaper that will be glued to it. For example, for liquid wallpaper fit:

• deep penetration primer;
• acrylic.

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Primer for wallpaper. Which one to choose?

All primers can be divided into two main categories:

• For absorbent surfaces (concrete, putty, plaster, brick).
• For non-absorbent surfaces (metalwork, ceramic coatings, oil paint).

Primer for absorbent surfaces

For such surfaces usually use deep penetration soil - it is available in the form of a liquid concentrate. After applying the impregnation to the wall, it becomes rough, which ensures a high degree of adhesion between the base and the top layer.

Primer for non-absorbent surfaces

For this type of surface, a primer is used that simply increases the degree of adhesion, roughening the smooth surface. Such a product is sold in a plastic container and is, as a rule, a paste-like mass.

Important! Soil mixtures are available in the form of concentrated soil, diluted impregnation and dry material. At the same time, the quality of the product does not suffer. You can choose a finishing solution in any form convenient for you.

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How to apply the primer on the walls correctly?

First of all, after purchasing a suitable primer, take care of the necessary tools.

Mixing Tools

To perform priming work you will need:

• Tray for breeding compounds;
• Construction roller;
• Fly brush;
• Putty knife.

The procedure for applying a primer to absorbent surfaces:

1. First of all, it is necessary to prepare the surface for applying the primer:
   1. To do this, putty and smooth the walls, remove various contaminants and dust from their surface.
   2. If there are large depressions on the wall, they must be eliminated with a cement-sand mortar.
   3. The surface coated with oil-based paint, swollen and delaminated areas must be removed using a spatula.
2. Dilute the mixture with water as indicated in the instructions on the packaging of the manufacturer. Pour the resulting mass into the prepared tray.
3. The next step is the direct application of a primer. Immerse the construction roller in the container with the mixture. Make sure that there is not too much of this mixture on the roller.

Important! Apply the soil with a thin layer. If a thick layer is applied, the opposite effect can be obtained, since in this case a film is formed on the soil surface after drying, which can easily peel off.

4. After applying the primer, wait time - let the composition dry well.

Important! Be sure to check how well the surface has dried:

• Swipe your palm across the wall. The hand should not get dirty.
• If traces remain in the palm of your hand, you need to apply another layer of soil.

The procedure for applying a primer to non-absorbent surfaces:

1. The initial stage, as in the situation above, is preparation. The surface is puttyed, leveled, cleaned of dust and dirt. Depressions, if any, are also eliminated.
2. Before starting work, you need to thoroughly mix the primer mixture in the bucket, since it contains polymers and quartz sand, which can peel off from each other, which is unacceptable.
3. After this, impregnate on the base with a thin layer from bottom to top. To do this, it is convenient to use a fly brush, which is advisable to wash immediately after treatment.

Important! After the residual mixture has dried on the brush, it will be practically impossible to clean them.

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What kind of impregnation to choose for wallpapering?

Modern building supermarkets offer a very wide selection of soil for walls. But still, the issue of choosing a primer is still relevant. For the right choice, you need to take into account the material of the walls, the humidity in the room and the time required to dry the impregnation.

Glue impregnation

The choice of primer depends primarily on the material of the walls. The cheapest option for priming the surface is to impregnate the walls with ordinary wallpaper glue. The main advantage of such a soil is the reduction in moisture absorption by the working surface, but it will not protect against the appearance of possible stains on the wallpaper.

Important! Use such a soil is possible only for perfectly even bases.

Adhesive primer

If you need to glue wallpaper on walls that do not absorb moisture well, for example, with stucco or paint, then you need to use an adhesive primer for such a surface.

Depending on the composition, the adhesive primer is:

1. Acrylic
2. Alkyd.
3. Glifthal.
4. Mineral
5. Perchlorovinyl.

Important! As mentioned earlier, before the primer of the walls, it is necessary to clean the surface and put up all the chips and cracks.

Further it is very important to choose the right soil, because the quality of wallpapering and the final result depend on its composition. But what is the best primer for wallpaper and which one to choose in order to get perfect walls in the end? Let us consider in more detail each type of soil.

Acrylic primer

One of the most common and universal impregnations, which meets almost all the requirements of consumers. It is used most often for the preparation of brick, concrete, wooden and plywood walls.

Important! Acrylic primer is contraindicated for the impregnation of bases where there is ferrous metal.

Characteristics of acrylic primer:

• odorless;
• easily soluble in water;
• dries quickly - 5 hours is enough;
• universal - suitable for most surfaces.

Alkyd primer

This mixture is used to prepare wooden surfaces. Perfect for country houses.

Important! When applying such a soil to wood, a strong layer forms on which not only wallpaper, but also other finishing materials are excellently held.

Types of alkyd mixtures, depending on the composition:

1. Zinc chromate based primers. They have a wide range of actions, which allows them to be used for structures of various materials.

Important! The only exceptions are walls covered with gypsum and plaster.

2. Zinc phosphate based primers. They are used to impregnate walls before painting with alkyd paints.

Characteristics of alkyd solutions:

• suitable for use both for external and external work;
• provide almost perfect coupling with any surface;
• can be used before laying tile;
• apply before painting or wallpapering;
• soil drying time - 15 hours.

Gliphthal primer

Glifthal impregnation is perfect for wood and metal. Due to its composition, it creates the correct layer. The soil dries within 24 hours.

Important! Glyphtal primer is recommended only for rooms with low humidity. Otherwise, it loses its properties, and the result of the work done can upset you.

Mineral primer

The composition of the mineral primer includes cement, gypsum and lime, so it is ideal for impregnation of concrete and brick surfaces.Impregnation drying time from 3 to 24 hours, depending on the volume of the room, the characteristics of the wall material, its density.

Vinyl chloride primer

It is used for external and internal works. It tolerates low temperatures well. Apply such a primer for brick, concrete and metal walls.

Important! At high temperatures in the summer, perchlorovinyl primer dries in 1 hour.

Primer for liquid wallpaper

Liquid wallpaper in consistency and composition is a decorative plaster. They are based on cellulose and silk fibers with bonding agents.

For liquid wallpaper, a white suspension or a transparent emulsion is used as a primer. The walls are primed in 3-4 layers in order to level the surface and eliminate the possibility of spots after rolling with liquid wallpaper.

Important! For better adhesion of fibers and partitions, it is recommended to use acrylic deep penetration primers.

On a smooth surface, a primer containing quartz dust must be applied. Thus, you get a structural and rough surface, and the liquid wallpaper will lie down without tearing, evenly.

Important! Such a primer can be made independently by adding fine pure sand or quartz (marble) dust to conventional impregnation.

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Stock footage

Now, knowing all the basic types of primers for wall coverings, you can easily decide which primer for walls to use as wallpaper for your repair. In any case, do not give up the priming process and do not save on it, because the result and the overall picture of the appearance of the walls depend on it.