How to treat walls before applying liquid wallpaper? Instruction + Video and Photo

How to treat walls before applying liquid wallpaper? Instruction + Video and Photo The popularity of liquid wallpaper as a finishing material is gaining momentum. And it's not in vain! The material has unique qualities and combines the properties of a decorative and leveling coating.

In addition, it is very easy to work with the composition, you can cope on your own, without the need to hire workers. Liquid wallpaper has a lot of advantages over conventional paper materials, but at the same time there are a number of nuances that must be taken into account when working with them.

The first and important point is the preparation of walls for liquid video wallpaper, the process of which can be easily found on the YouTube channel.

What must be considered first of all

Considering that the finished composition must be applied in a thin layer, which will necessarily be visible, it is necessary to carefully prepare the walls for application, or increase the consumption material and apply in two layers. But, hardly anyone will do this, because it doubles the expense item. There are several ways to prepare walls for liquid wallpaper, and all of them are used in practice, showing good results. The most popular method is to paint the walls with water-based white paint.

Methods of processing walls for applying liquid wallpaper depend on the surface material.

For walls made of wood, brick, concrete, drywall, a specific method of rough finishing is selected.

Preparation of walls for liquid wallpaper

Concrete walls

Often, in new houses, the walls are already prepared for covering with various materials. In the old housing stock, the situation is sometimes deplorable, therefore, first of all, it is necessary to repair irregularities, protrusions, pits, chips and cracks on the surface. Despite the fact that the material has the ability to hide defects, it is not able to smooth out too obvious ones.

Work steps

  • How to treat walls before applying liquid wallpaper? Instruction + Video and Photo Primer application , characterized by the ability to penetrate deep layers of concrete.

    This must be done to ensure good adhesion to the decorative coating.

  • After the primer composition has dried (about 6 - 8 hours), a layer of putty is applied in order to hide defects and level the surface. It will take 24 hours to dry the layer.
  • Coating plaster with white water-based paint. It must be applied in three layers "wet", which eliminates the need to wait for the drying time of the layers.


It is advisable to apply the paint using a cross method, namely: one layer - in the horizontal direction, the second - in the vertical direction, the third - again in the horizontal direction. There is no fundamental difference, the layers can be alternated at your discretion.

Preparation of plastered walls for liquid wallpaper

Such surfaces are not as simple as they seem at first glance.If you are dealing with old plaster, for example, you have purchased an apartment in an old housing stock, you probably cannot know how old this layer is, and how well it was applied. In some places, the fur coat can keep on parole, as they say, and an air gap forms under it, which in turn threatens that sooner or later the fur coat will peel off.

Experts advise walking over the entire area of ​​the plastered walls with a wooden hammer and tapping the surface. A dull sound indicates that the plaster needs to be changed or defective areas need to be repaired.

The place of plaster detachment is removed and filled with freshly prepared mortar.

How to prepare plaster for application probably know many. It is enough to buy a bag of dry mix and dilute it with water in the right proportion.

It is necessary to apply the solution to damp walls or previously treated with a primer. Drying time is 24 to 30 hours. The primer must be applied to the entire surface of the walls, wait until completely dry, then leveled with a thin layer of plaster. After that, the surface is painted with white paint.

Preparation of drywall walls for liquid wallpaper

Drywall is very often used as interior partitions, as well as for cladding finished walls.

This is mainly done for the purpose of warming and leveling surfaces. The main task in preparing drywall for applying liquid wallpaper is to qualitatively process the joints and screw-in screws. For this purpose, a putty composition is used.


It is not correct to apply the putty only in the joints and screws. It is necessary to putty the entire surface.

The main purpose of wall putty is to hide the color difference in sections of the walls. The variability of colors on the plasterboard surface can be as follows: from gray-green to white in places where the putty is applied. After the surface has dried, paint can be applied.

Preparation of wooden walls for liquid wallpaper

There are no special differences in the alignment of wooden walls from those described above. There are only a few points to watch out for.

  • Wall thickness. Thin walls can deform from contact with the wet composition of liquid wallpaper.
  • Apply the primer three times, drying each coat before applying the next.
  • Can be painted with oil-based or water-based paints.

Preparation of surfaces for liquid wallpaper in old houses

In old houses or apartments, the walls undergo various modifications over the years.

The fundamental point of a high-quality surface preparation for decorative coating is a thorough cleaning of old materials. It can be paper wallpaper glued in several layers, paint, wall panels and many others. It is imperative to get rid of all this.

To remove traces of paint from the walls, use an electric drill with a nozzle, a metal bristle brush. Wallpaper can be easily removed with a spatula after moistening it.

Wall panels are removed, armed with an ax, crowbar, hammer.

After removing the old coating, the walls are primed and leveled with a gypsum-based mixture, after which another layer of soil is needed. Now you can start painting the surface. To do this, prepare a mixture of their paint for white facades and PVA glue in a 3: 1 ratio of components. It is important to dry each layer of paint completely.

In this regard, paint application work may be delayed.

If metal elements are visible from the walls, the preparation process becomes more complicated. Metal products, upon contact with moisture, begin to rust, and as a result - an "oil painting" of stains that, without preliminary treatment, will look treacherous under liquid wallpaper. To avoid such unpleasant surprises, it is best to remove metal elements or treat them with varnish or oil-based paint.

In addition to white ink, you can use any other shade.

The point is to choose the material to match the liquid wallpaper in the interior of the apartment. All this is done in order to save the consumption of the wallpaper mixture, taking into account their high cost. While white works well, you won't see a significant difference. The main task is to hide the uneven color of the walls.

Choosing a primer before applying liquid wallpaper

Primer mixtures are used to improve the adhesion of facing materials to the surface.

Small fractions stick together and add durability to the coating. It is necessary to apply the primer in three layers, allowing each of them to dry. In time, this process stretches for 2 - 3 hours. In order for liquid wallpaper to adhere perfectly to the surface of the walls, it is necessary to select a high-quality primer mixture. The expert advises paying attention to compositions based on quartz and acrylic.

The acrylic primer is odorless, only slightly perceptible for sensitive noses. It is very easy to apply to the surface, in addition, it is absorbed instantly. The composition is white. You can work with it only when the air temperature in the room is not less than + 5 ° C.


If you have a budget, prepare your own primer. To do this, you need to mix PVA glue into the paint in a ratio of 2: 1.

Quartz soil has the same characteristics as acrylic. It contains quartz particles, which provide excellent adhesion of decorative materials to the surface. There are no temperature restrictions when applying the primer, which makes everything attractive.

How not to get confused and choose the best option for a primer? In this matter, be guided by the principle - it is better to pay more once and be sure of the result than to redo it later. The cost of primers is quite acceptable, so there is no point in saving.

Tool for applying liquid wallpaper on walls

The speed of the repair process, and in this case we are talking about applying liquid wallpaper, directly depends on the choice tools. A wide spatula is most often used to cover the walls with this decorative material.

For quality work, it is recommended to purchase three types of spatulas:

  • How to treat walls before applying liquid wallpaper? Instruction + Video and Photo The first metal tool with a width of 10 cm is convenient to draw on the main spatula.

  • The second tool is a trowel for applying liquid wallpaper, in other words, a kind of trowel. A stainless steel trowel is made, and it is used to level the composition over the surface.
  • The third tool, an angled spatula, is optional but makes it easier to level the mix in corners.

Application of liquid wallpaper with a roller is possible, if the task is set, to make the surface textured and rough. Also, a special sprayer is quite convenient, thanks to which material consumption is reduced, since it is applied in the thinnest layer.

It is rational to use the spray gun when working with large rooms.

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