Is it possible to glue wallpaper on painted walls: options, features, instructions

You will be able to avoid troubles due to damaged repairs if you apply wallpaper to painted walls after they have been properly prepared.When finishing, it is not always necessary to completely remove the paint layer. Depending on the condition of the wall surface, clean it fragmentarily, eliminating flaky areas. But the whitewash or water-based coating needs to be washed off or primed twice.

Is it possible to put wallpaper over paint?

When carrying out repairs, finishing such as wallpaper is effectively used. Problems often arise if you decide to stick them on previously painted walls.

This process can be carried out by following proven surface preparation technology, taking into account the characteristics of the paint layer. Experts believe that after proper preparation, finishing is possible using water-based emulsion, whitewash, acrylic, latex, or water-dispersion paint.

It is recommended to ensure the removal or special preparation of smooth sliding finishes from materials, which include latex, oil paints and various types of enamels. If you paste directly onto such a layer, the wallpaper will not adhere well.

Advantages

Assessing the possibility of decorating painted walls with different types of wallpaper, the following advantages of this technology are highlighted:

1. A simple preparatory stage is required, which reduces the complexity of repair work.
2. All operations can be performed using available tools and materials.
3. To apply wallpaper to painted surfaces, you do not need any special skills.
4. When carrying out all operations with your own hands, repairs are low cost.

Flaws

Before hanging wallpaper on painted walls, it is worth studying information about the possible negative consequences of such repairs.

Flaws:

1. Insufficient or absent reliable adhesion of the canvases to the painted wall. There are two reasons: the paint does not adhere well to the surface and the properties of the selected adhesive are not suitable for paintwork.
2. The water-based layer absorbs moisture. If paper tapestries are glued to this paint, they may become deformed and fall away from the wall.
3. Due to the lack of vapor permeability, oil paint, after decorating such a surface with wallpaper, provokes the development of mold.
4. Enamel has the property of creating a glossy, smooth wall surface. It does not provide strong adhesion to the glue, which causes the wallpaper to quickly peel off.

What are the features and rules for gluing wallpaper on a painted wall?

Taking into account the characteristics of walls painted with different compositions, when decorating them with wallpaper, the following rules are observed:

1. To properly glue vinyl, non-woven, fiberglass or paper sheets to paint, you need to use a suitable adhesive that provides good adhesion.
2. Thin paper wallpaper should not be used to decorate walls painted with dark or bright compositions.This is due to the possibility of intense colors showing through, which reduces the aesthetics of the renovated room.
3. After gluing is completed, windows should not be opened for 40-48 hours. Due to drafts and temperature fluctuations, wallpaper strips begin to peel off, and swelling and cracks appear on them.

An important nuance for long-term repair of painted walls is an operation such as preliminary identification of the type of paint.

Oil paint

A coating that is resistant to dampness and increased heat is obtained. Has an unpleasant persistent odor. Protects metal from rust and wooden walls from rotting. Destroys under the influence of alkalis.

If you carry out proper preparation, you will be able to reliably glue light wallpaper panels.

Latex variety

Creates a wear-resistant layer on a painted wall. The following characteristics are considered advantages: low odor, quick drying, resistance to wet cleaning, ultraviolet radiation, and mechanical stress. May crack at low temperatures.

To glue non-woven or paper trim to such walls, you need to remove all crumbling fragments.

Acrylic composition

The coating is resistant to moisture, temperature fluctuations, and exposure to sunlight. It is also valued for its quick drying and lack of odor. Can be applied to a variety of materials.

It is impossible to completely remove acrylic protection from a painted surface. You can paste light wallpaper after priming.

Water-dispersed species

This fast-drying, odorless paint variety is breathable. It forms a durable coating that is resistant to high temperature, wear, and moisture.Before gluing the wallpaper strips, you need to soak and clean the painted areas of the wall.

Epoxy variety

This type of odorless, waterproof material is suitable for finishing concrete surfaces. It resists heat well, withstanding temperatures up to +140...150 °C, and is not destroyed when exposed to aggressive substances.

Due to its high strength, the painted surface is difficult to sand. Lighter finishes can be primed and glued on.

Silicate finish

A wall painted with this composition will acquire an elastic, indelible finish that demonstrates resistance to acids and moisture. It is not suitable for plastic and wooden surfaces and contains toxic compounds. The created layer looks uneven, so it is not suitable for finishing with wallpaper material.

Water-based composition

The quick-drying water-based emulsion is safe because it contains no toxic additives. This type of finish does not have an unpleasant odor.

It is not difficult to identify a water-based emulsion. If you run a damp sponge over a painted wall, the paint begins to bubble and then washes off easily. This ensures easy removal before applying the desired wallpaper.

Polyvinyl acetate variety

It is distinguished by easy and uniform distribution on different surfaces. Walls painted with this composition, odorless and without toxic components, are fire-resistant. They do not fade under the sun and are not affected by mold.

It is necessary to take into account the low resistance to moisture, so you can distinguish polyvinyl acetate finishing by washing it off when running a sponge soaked in water over it.This allows you to easily remove the coating from the painted area, quickly solving the problem of how to glue the desired wallpaper.

Enamel

A distinctive characteristic is the waterproof, durable layer with a glossy sheen on the wall covered with this material. There is a strong odor during operation. You need to prepare the entire painted surface of the wall for wallpaper.

Whitewash

Here they use chalk crushed to a powdery state or slaked lime. It is not difficult to determine the presence of paint on a wall. If you run your hand over a painted surface, a white mark will remain on it.

Once you have managed to understand what composition the painted walls are finished with, you can begin to prepare the surfaces for wallpapering.

Preparatory stage

Having decided to convert painted wall surfaces with wallpaper, check the strength of the protective layer. The following methods are used:

1. Small areas on the painted wall are covered with wallpaper glue. Leave it until completely dry. Then pry off the adhesive mass with a spatula. If the paint peels off along with it, you need to remove it.
   
2. Apply a piece of tape tightly to the painted area. Tear off with a quick, sharp movement. If there are particles left on the tape, this indicates a low strength rating. You will need to carry out special preparation before gluing the selected wallpaper.

Algorithm:

1. Clean painted walls, removing all flaking, falling, cracked layers.
2. Eliminate traces of mold, wiping problem areas with antiseptic agents.
3. It is also necessary to remove greasy marks from the painted area. Use a household dishwashing detergent.
4. The edges of identified cracks and depressions are cleaned with a spatula and sanded with sandpaper.
5. The remaining dust and small dirt is swept away with a soft brush. Wash the working area first with soap and then with clean water. Wipe with a soft dry cloth.
6. Irregularities need to be puttied, smoothing with a spatula. After the first layer has dried, the finishing putty is distributed over the entire surface. This ensures a uniform light color.
   
7. To increase adhesion, primer treatment is practiced. “Concrete Contact” with the addition of quartz sand is well suited for painted walls. After drying, a rough, even plane is formed, which allows you to reliably paste wallpaper onto it.
   

If during stripping it is not possible to remove firmly adherent painted areas covered with paint that creates a durable film, they should be roughened. Use coarse sandpaper to sand the wall.

Sticking options

After it is possible to establish the type of paint coating, its strength, and carry out preliminary treatment, you can proceed to the main stage of repair. It will be possible to reliably stick wallpaper onto a painted surface if you follow some important recommendations, taking into account the type of paint.

To the oil

Remove those fragments of the paint coating that peel off from the base.

The remaining painted areas are inspected. If strong adhesion of oil paint to the surface is detected, then a simple matting operation will be required. Use coarse-grain sandpaper to create the desired roughness. Then the dust is washed off. After drying, a primer is applied in 2 layers to increase adhesion.

You can use a chisel to make vertical stripes, removing the paint layer, 5 cm wide. The gap between them is left 20 cm. The areas freed from the coating are primed.Then they need to be puttied so that the surface becomes smooth. This technology for preparing a painted wall is considered less reliable than the first method.

For water-based

If you glue wallpaper sheets directly onto a surface painted with a hygroscopic water-based composition, they will swell. This will cause the finish to warp and quickly fall off.

If the coating adheres well to a wall painted with water-based material, carry out the following measures:

1. Using a roller, distribute the primer evenly, which is diluted in equal parts with solvent. This additive softens the painted fragments, ensuring deeper penetration of the composition into the wall.
2. After drying, treat the entire area to be decorated with clean soil.
3. As soon as it dries, you can paste the wallpaper.

If peeling and flaking are detected, the water-based paint should be washed off with warm water. Use a brush. Then wipe the surfaces with a soft cloth soaked in clean water. Before hanging any wallpaper, dry the cleaned wall.

On acrylic

The coating created with acrylic compounds has a matte texture, so additional sanding is not required. If the protective waterproof layer is strong and there is no peeling, do the following before gluing the desired wallpaper:

1. Wet a soft sponge with clean water and wipe the walls painted with acrylic paint. Remove any resulting contamination or dust.
2. If traces of mold are detected, then antiseptic preparations are used.
3. Leave to dry with the window open.
4. Distribute the primer material. You need to apply 2 layers, after waiting until the first coat dries.

If a wall painted with acrylic material is not reliable, you need to use a primer for treatment. It is combined in equal proportions with a solvent to soften the coating. After drying, another layer of soil without additives will be required. They use a type of deep penetration.

Unlike the option with water-based painting, after priming, a thin even layer of adhesive material is applied to acrylic paint to improve adhesion, which must be diluted with water. Before applying wallpaper to the prepared surfaces, the wall must dry.

For whitewashing and enamel

If there is a firmly held coating on enamel-painted walls, it is first roughened. Use coarse sandpaper, as for oil paint. You can take special abrasive brushes. Finishes with cracks and peelings are completely removed.

The desire to paste wallpaper onto any type of whitewash leads to spoiled repairs, as they will quickly fall off. Walls with a lime or chalk layer must be properly prepared. Use 2 proven technologies.

1. Weak whitewash with traces of peeling is moistened with a slightly warmed soap solution. Using a spatula, clean all particles. Rinse the work area with clean water. After drying, check the surfaces. If traces of lime (or chalk) remain, scrub them off with a spatula. You can glue wallpaper onto a clean surface without difficulty.
2. A double primer is applied on a smooth whitewashed wall. The composition is selected for deep penetration. Repeat application is practiced when the first layer dries. For reliability, the primed surfaces are covered with wallpaper glue.When diluting it, make sure that the volume of water is no more than 20%.

For old or new paint - is there a difference?

When deciding how best to hang wallpaper, if there are painted walls in the room, evaluate their condition.

The reliability of the adhesive does not depend on how long ago the finish was applied. The difference between old paint and fresh paint is the presence of more dirt or cracks.

This may lead to an extension of the period of preparatory work, which in both situations must be carried out.

Does the type of wallpaper affect the method of gluing?

It will be possible to ensure durable wall finishing if you paste correctly selected wallpaper onto previously painted surfaces.

Basic Rules:

1. Light non-woven wallpaper Suitable for all types of painted walls. They are made from a non-woven composite material similar to paper. Non-woven fabric consists of artificial (for example, polyester) and natural (mainly cellulose) fibers.
   
2. If you decide to glue thick vinyl wallpaper over paint, then avoid walls that were previously painted with enamel or oil, which were prepared using the technology of cutting strips with a chisel. It is permissible to use vinyl sheets if you first roughen the entire painted surface with abrasive tools.
   
3. Translucent paper wallpaper can be securely glued onto a work surface with a uniform white background. Allows you to obtain its two-layer application of primer.
   
4. It is also worth providing a light, monochromatic work area if you need to hang vinyl wallpaper made on a paper base.
   
5. Lightweight vinyl sheets, made on a non-woven base, can be easily glued to walls that have been washed after water-based emulsion or whitewashing. It should be borne in mind that such finishing should not be used in children's rooms, as it does not allow air to pass through.
   

Is it possible to glue liquid wallpaper over paint?

When carrying out repairs, liquid wallpaper is often used. They are also called silk plaster. The resulting seamless coating combines the characteristics of decorative plaster, popular roll wallpaper and paint.

You can buy liquid wallpaper in dry form. The material consists of cellulose and silk fibers. There are plasticizers, fungicides, adhesive components, and dyes. Decor is added - mica, mineral, mother-of-pearl chips, flocks, sparkles.

The mass is kneaded, adding water according to the instructions. Before spreading it, it is necessary to clean the painted wall. Smooth fragments are treated with sandpaper with coarse abrasive. After filling the uneven surfaces, the entire surface is primed and then painted with a water-based paint. This will prevent dark spots from showing through.

If you need to put wallpaper on painted walls, you can do it reliably if you first carry out the necessary preparatory operations. It is not always necessary to clean the entire protective layer. After assessing his condition, you can use simpler methods.

Are you familiar with the situation when you want to use beautiful wallpaper for decoration, but the walls turn out to be painted? Share your personal experience in the comments. Save the article in your bookmarks so you don’t lose useful information.