Is it possible to paint with enamel over water-based paint? Is it possible to paint with enamel over water-based paint?

Types of paints and varnishes

The composition of paints and varnishes includes binders, fillers, pigments, solvents/thinners and additives. In order to competently use paint and varnish materials during repairs, you need to know exactly their composition.

Main components

Oil paints based on drying oil.

All paints are divided according to the type of binder used and the type of solvent.

The binder determines the main qualities of the paint, the service life of the coating and the speed of its drying
. There are 4 common types of binders used for paints and varnishes: alkyd and epoxy resins, oil-based (on drying oil), latex, acrylic polymers.
Solvent components are divided into solvents themselves and diluents
. The former reduce the fluidity and viscosity of the material. Thinners only reduce the viscosity of the paint.
To improve the characteristics of paints and varnishes, additives are added to their composition
: stabilizers, emulsifiers, fungicides, antiseptics, etc.
Special paints belong to a separate category
. These are anti-corrosion coatings, for example, Zinga electrically conductive paint. Analogs with antiseptic properties that protect the base from mold and rot. Compositions for removing small defects (irregularities, scratches, cracks), etc.

Oil and enamel compositions

The photo shows acrylic enamel.

Materials based on alkyd and acrylic resins include oil and enamel paints. They are suitable for painting metal, wood and plastered surfaces.

After drying, they are non-toxic, light and moisture resistant.

Oil paints are produced on the basis of drying oil. White Spirit, gasoline, turpentine or solvent naphtha are used as diluents. The compositions are not expensive, but they take a long time (up to several days) to dry. The main disadvantage is that over time the coating turns yellow.
Varnish is added to enamel compositions as a binder. It gives the coating gloss and aesthetics. The instructions recommend using such paints for external and internal finishing work on metal, wood, concrete, and plaster. Enamels are moisture and light resistant. They also have anti-corrosion resistance.

Emulsion and dispersion materials

Water-dispersed composition.

Such paints are diluted, but not soluble with water. In them, the binder and pigment particles are distributed in a liquid medium, creating a stable emulsion.

When the coating dries, it is not washed away by water.

Emulsion compositions are economical, environmentally friendly and fire safe.
They fit well on almost any substrate.
They dry quickly and do not have a pungent odor.

Many people think that water-based and water-dispersion compositions are the same.

However, they are different.

Matte emulsions wash off over time. The dispersions are waterproof and suitable for use in damp areas.
Water-dispersion compositions are usually white; water-based analogues have a variety of colors.
Dispersions cannot be used at temperatures below +5 degrees. However, with the addition of modifiers, they are thermally stable. Such, for example, are fire-retardant paints for metal Polistil.

Such compositions are frost-resistant after they are completely dry.
They are vapor permeable.
Suitable for alkaline substrates (concrete, plaster).
These paints are tinted very well.
Resistant to ultraviolet radiation, retains its original color for a long time.
They have the ability to repel water.
They have high mechanical stability.

Differences in paints

Before you understand whether it is possible to paint products coated with acrylic with alkyd paint, you need to understand the compatibility of these enamels.

Acrylic paint bases last longer on the surface. Alkyd enamels are not so durable. And if the product or surface is cleaned and primed before painting, the coating will remain for more than 20 years. Surfaces coated with alkyds become unusable a year after the first painting.
Acrylic is indifferent to the effects of ultraviolet rays. Under direct sunlight, the enamel does not peel, does not turn yellow, and does not lose transparency. The Alcides cannot boast of this.
But alkyd paints dry faster. Therefore, they are indispensable for quick coloring. Unlike competitors, which only need two days to dry completely, acrylics dry for a month.
Acrylics take a long time to dry, but during this process a film is formed that is more resistant to mechanical damage. Other coatings do not differ in such properties.
Alkyd substances have a wide variety of shades, which is not typical for acrylic paints. If choosing non-standard colors is important, it is better to choose acrylic enamels.

Painting rules or how not to make mistakes

When the surface is pre-prepared and well-dried, proceed to applying the desired shade of water emulsion on top. The entire procedure must be carried out carefully and slowly.

We prepare the necessary material and equipment (brushes, paint tray, roller).
Pour the paint into the tray and make sure that it is not too thick, otherwise it will be difficult to apply it to the surface.
Make sure the direction of the brush is correct relative to the incident light. This will prevent the dye from leaving streaks, and the paint will in turn lie smoothly.
Apply paint in several layers (at least three). If there was no sanding beforehand, then you should choose a thick paint consistency.

Removing old oil paint from wallsSource roomester.ru

Scraping old oil paint from wooden walls using special equipmentSource ecosystems.pro

Answers from experts

rrr:

you can... but is it necessary?

Stepa:

On the contrary (in the sense of oil in emulsion), no. And the emulsion goes on well even without preparation (the first layer is a little worse). Well, if you sand an oil-painted wall and prime it with a good primer like “Dufa”, your paint will last happily ever after.

trickster:

maybe just a few layers. You can’t use nitro paint, it will peel off

Olga Smychenko:

You can if you use caparol matlatex or caparol malerit paint. But before that you need to prime it with Ceresit primer and let it dry for 12 hours.

Vita Marchenko:

It will be difficult to paint and then when washing the water emulsion will be downloaded

Olesya Chernova:

Anything is possible, it will be ok, that weekend we were painting the ceiling at the dacha. It turned out great, nothing was cut, just the dust was washed off the ceiling.

Svetlana Spiridonova:

No. And if you really need to, then peel off the old paint, prime it, then level the surface, sand it with fine sandpaper and only then paint. If you are leveling with a coarse putty material (Rotbant), then sand with coarse sandpaper (sandpaper). If you are leveling with a finishing putty (Vetonit LR+). That's fine sandpaper.

Maxim Prolygin:

If you take a facade emulsion, it sticks to almost anything.

Alexei:

Of course you can, go over it with fine sandpaper, then two layers of primer, and then paint it two or three times (depending on the quality of the paint) and that’s it.

Alexander Khvostantsev:

Of course it will - where will it go?

Korolev Yuri:

You just need to do the preparation and sand the paint with sandpaper, go through the primer and then paint it in several layers with water-based emulsion

Dmitriy Geshtalt:

When painting any surface, special attention should be paid to the compatibility of paint materials. Water-dispersion paints are poorly compatible with solvent-based enamels (MA, PF, NC). The use of water-dispersion paints in the interior and exterior is much more profitable and environmentally friendly than solvent-based enamels

On a façade, for example, water-dispersed paints last from 8 to 12 years, while PF enamel lasts only 3-5 years. In addition, water-based paints, unlike enamels, form a “breathable”, vapor-permeable coating

The use of water-dispersion paints in the interior and exterior is much more profitable and environmentally friendly than solvent-based enamels. On a façade, for example, water-dispersed paints last from 8 to 12 years, while PF enamel lasts only 3-5 years. In addition, water-based paints, unlike enamels, form a “breathable”, vapor-permeable coating.

Considering the above advantages of water-dispersion paints over enamels, it is not surprising that they are crowding out solvent-based products in the market of paints and varnishes. The consumer’s desire to use more environmentally friendly, cheaper and durable materials is understandable. But, unfortunately, it will not be possible to simply apply water-dispersion paint to a surface previously painted with PF enamel. The most radical method of solving the problem is to remove the old paint. With the help of “Paint Destroyer B-52” you can easily get rid of any putties and alkyd enamels without damaging the surface being cleaned.

Apply a 1-2 mm layer of “Paint Destroyer B-52”; after 30 minutes, remove the peeled paint with a spatula. If this is difficult to do, we recommend using acrylic “Special primer PARADE Reanimator G 40”, which is intended for priming various types of surfaces previously painted with alkyd or oil paints for further finishing with water-dispersed materials.

It is enough to thoroughly mix the ready-to-use PARADE Reanimator Special Primer, then apply it in one layer to the surface with a roller or brush. After 1 hour, the PARADE Reanimator Special Primer will dry, forming a translucent, slightly rough surface that is ready for painting with water-dispersed materials.

Preparing a painted surface for repainting

To avoid unpleasant surprises when painting over an existing paint layer, you should adhere to the following recommendations:

Carefully inspect the surface. Remove dust and dirt.
If unevenness, cracks, or signs of peeling of the coating are visible, it is necessary to partially dismantle it from the problem areas.
After this, the surface is primed and putty is applied to level it.
Irregularities are eliminated by sanding. The putty should be brought to the same level as the base coat.
The surface is primed again, and after the primer has dried, painting begins.
The new coating is applied in 1-2 layers according to the instructions on the package.

When carrying out painting operations, it must be taken into account that emulsion paints do not have such a dense covering ability as oil paints. Therefore, if the old paint is dark in color and the new one is light, then in order to get a light surface after painting, it will most likely be necessary to apply it in 2-3 layers. Thus, the paint consumption may be higher than that indicated on the packaging.

A water emulsion, correctly applied over the previous coating, adheres to the wall for a long time and reliably. It dries quickly, is safe for human health, does not harm the environment, is relatively resistant to humidity and ultraviolet radiation, and is durable. The main thing is to maintain time intervals between applying layers of coating. In this case, a positive result is guaranteed.

Difference between acrylic and water-based paint

How do these materials differ from each other? A water-based composition is a large group of mixtures for which water is the solvent. The final properties of the product depend on the additives; they can be polymer or mineral.

Acrylic solution is a type of water-based emulsion. The composition of this mixture is: dye, polymer emulsion (in this case acrylic), distilled water and special additives to improve characteristics. Thus, a more modern composition with excellent qualities is obtained.

Water-based paint is often associated with traditional paint that contains chalk or slaked lime. Basically, such mixtures are prepared independently with the addition of PVA.
Differences in GOST. This regulatory document reflects all the technical characteristics of the material. Under number 28196-89 there is water-dispersion paint, which often has a more popular name - water-based emulsion. Such confusion arises due to the fact that the expansion of GOST occurs very slowly. The characteristics specified in 1989 no longer correspond to the range of products present on the market.

Technical characteristics of acrylic compositions

Acrylic paint has properties that distinguish it from classical materials:

Good viscosity. The solution does not flow off the surface, which ensures uniform distribution and quick fixation.
Light weight. This eliminates the overall load even on a fragile base, such as drywall.
Good hiding power.

The composition is applied at temperatures above +15 and humidity 65–70%. Other specifications vary by manufacturer.

How to paint walls with water-based paint

Before starting painting work, the paint is mixed manually or with a construction mixer. The desired color is selected on a test surface by adding a certain amount of coloring pigments to the base composition.

You should not start painting the surface right away - it is recommended to paint a small area on plywood, for example, and wait for it to dry to see the final color of the painted surface - wet and dried paint will always be different in color, and this must be taken into account. The working surface is first leveled, cracks and cracks are sealed, primed and allowed to dry completely.

If paint is applied for the first time, it is recommended to use the rules for selecting colors for different rooms. For example, if the windows are located on the south side of the room, then it is better to use shades of the cold spectrum - from violet to blue. It is better to paint a room with windows facing north in warm colors - from red to orange.

Ways to solve the problem - additional tips

It follows from this that the evenness of the oil coating directly depends on the conditions and time of operation of the room. The quality of the original paint, naturally, also affects the subsequent application process. Often the wall looks like a washboard. If you paint directly on such a surface, you will get a terrible result.

How to avoid this situation? You can try the following three methods that are cost-effective for minor home renovations.

Matting. If the oil surface is preserved in good condition, matting will allow you to remove the glossy surface (that very film), which creates problems with the penetration of the water base. Expected result: the paint should be able to adhere to the wall, as the obstructive layer will be eliminated. The matting process is primitive. The wall is washed and dried with a construction hairdryer, after which it is worth using drying oil to coat the entire surface, and a layer of water-based emulsion can be applied on top. The mechanical type of matting looks like this: the surface is rubbed using fine sandpaper. In this case, reliability is increased, the gloss will be removed with guarantee.
Padding. Suitable for already worn surfaces. If you can cover some parts of the wall with soil, where the crumbling is most obvious, you will be able to level out the failures. Unfortunately, it is almost impossible to cover a wall with major damage with putty and level it. Modern specialized soils should be used, which are abundantly available on the building materials market. Ease of use and drying speed make it possible to use such materials even with a low degree of preparation of the working surface. The drying speed of modern primers allows painting within an hour after application. This method is beneficial for large gaps, often obtained when painting with oil paint, and will also allow the liquid of the water-based coating to be well absorbed.
Delete. The best in terms of efficiency, but the most labor-intensive process of carrying out the procedure in question. Complete removal of oil paint down to the concrete base of the wall allows for better results when applying another paint to the surface. Let's look at how to do this process as quickly as possible. You can knock off the paint by hand, but it is better to find an opportunity to use a power tool. Both a grinder and a drill with specialized attachments will do. You can knock off the paint directly with a hammer drill. The process will take a long time to occur when using conventional mechanical tools; carry out this work only if there is a complete absence of alternatives and in conditions of a small volume of work in the room. The end result is a completely clean wall.

How to calculate consumption?

Before purchasing, it is necessary not only to decide on the type and color of the ceiling paint, but also to calculate the required volume, which is determined by its consumption. The required quantity depends on the size of the room, which determines the ceiling area. Usually, all the necessary information for calculating the color composition is on the packaging, so you should definitely read the instructions.

In general figures, you can focus on the following calculations. The average consumption of water-dispersed paint when finishing ceilings is about 100 – 120 g/m2. Depending on the surface, at least two or three coats will be necessary to achieve a good, uniform finish. The material consumption is approximately the same whether using a roller or using a brush.

If we take into account the lack of experience and the inability to rub paint professionally, then the average consumption will be 300 g/m2

Having chosen the required type of water-based paint, you can read information on the packaging about whether it requires dilution. If manufacturers recommend diluting the purchased material, then water can be added to the required amount of paint; as a rule, no more than 5-10% is required. It is best to use the prepared volume immediately; do not let it thicken again. The best option is considered to be diluting the paint to the state of liquid cream.

It happens that the material does not require dilution; it is enough to just mix it thoroughly. Such manipulations will be enough if you plan to paint the ceiling in one layer; in such situations, the paint should be a little thicker.

For the entire surface of the ceiling, you should purchase paint from the same manufacturer, the same brand. This requirement guarantees a uniform, monochromatic coating.

Types of latex paints

Depending on what polymer is included in the composition, latex paints are:

acrylic;
acrylic silicone;
acrylic polyvinyl acetate;
acrylic butadiene styrene.

According to their purpose, they are divided into those used for external (facade) and internal work. In turn, the second of them are:

vinyl for walls and ceilings;
textured to create relief patterns;
drip-free, do not drip, do not form drops, well hide cracks and irregularities;
dense for painting ceilings;
acrylic, used for painting wood.

Latex water-based paints are also classified according to their gloss level. The markings on the can indicate that the paint can be used to achieve the following surface:

SM (0-5) - completely matte;
SG (90-100) - completely glossy;
G (60-89) - glossy;
M (6-10) - matte;
PG (30-59) - half glossy;
MP (11-29) - half matte.

The initial color of latex paint is white, and the desired shades are obtained using tinting pigments.

Water-based paint

It is a generalized concept of paint and varnish products, divided into various subtypes. Contains pigments, special-purpose polymer substances, and water. Some varieties contain acrylic and silicone resins. The consistency required for painting the surface is obtained using solvents. The exact paint consumption per square meter depends on the type of surface being painted.

Advantages

Water-based paint is absolutely safe for humans, does not emit toxic fumes into the environment, and also:

has no odor after drying;
has an affordable price;
simple and easy to apply.

Painting can be done using a roller or a ball-type brush. To obtain the desired shade, coloring pigments are added to the paint. The paint and varnish material is ideal for performing interior finishing work at temperatures from 5 degrees above zero. Drying quickly, it allows you to apply a new coat almost immediately after the first.

Varieties

The following types of water-based paint are available: mineral, silicate, silicone and acrylic. Each differs in composition and scope of application. The most expensive type is silicone, which fits and holds perfectly. The most affordable is water-based mineral paint, the main component of which is either cement or slaked lime. The advantage is that it perfectly paints any surface, but does not have a long service life due to its high susceptibility to negative external factors. The specific properties of the paint and varnish coating largely depend on the composition and subtype. Acrylic, in fact, is a type of water-based one. Its cost is in the average price range, and its scope is quite wide. It is used for painting plastered, brick and wooden surfaces.

Properties and composition of water-based paint:

The main characteristics of water-based paint are its environmental friendliness and hypoallergenicity . It does not have a strong odor, does not emit toxins hazardous to humans and the environment, and does not require the use of a solvent to wash it off hands. This coating dries quickly, has good adhesive ability and vapor permeability.

Chemical composition

Water-dispersed paint is suitable for painting different types of surfaces, such as wood, concrete, plaster, drywall, wallpaper, and can also be applied to a surface previously painted with another type of paint.

Tile

Is it possible to paint old tiles?

Yes - provided that it is not glazed. No paint will adhere strongly enough to glass-like glaze.

Solutions

After cleaning from lime and other deposits, the tiles can be painted without prior priming. In this case, you will have to use wear-resistant, highly adhesive paints based on urethane or epoxy. It is acceptable to use acrylic-latex rubber paints: at a moderate cost, they, like the two types of dyes mentioned above, will provide complete waterproofing of the surface.

Two-component epoxy paint.

Technology

How to do the work of preparing and painting tiles yourself?

To remove deposits, it is better to use acidic agents - Sillit, solutions of hydrochloric or oxalic acids. The product is applied to the surface and washed off after 10-20 minutes. If necessary, processing is repeated several times.

Oxalic acid is an effective means for removing lime deposits.

Two-component dyes are mixed with a hardener immediately before use.
The wall and plumbing adjacent to the tile are protected with masking tape.
The paint is applied with a brush or roller in one or two layers.

Acrylic copolymer based product

The acrylate binder in these paints can have a varied composition and contain copolymers - additional chains that modify quality parameters. The number of available copolymers is extensive and covers most needs for materials with special properties.

The latex component improves the characteristics of acrylic, making the paint more popular, although more expensive.

Features and Specifications

Common positive properties inherent in both acrylic and latex paints include:

strength and durability of the resulting polymer layer;
rich colors that do not lose brightness over time;
stability under the influence of ultraviolet radiation from the sun;
water base, which ensures the non-toxicity of the color mixture and the absence of unpleasant odors during operation.

Latex additives modify the strength and visual properties of acrylic paints, giving them the following characteristics:

high elasticity - latex paints can be applied over embossed walls and wallpaper, since they follow any curves of the base well;
aesthetics - rubber additives give the surface a visual silkiness;
resistance to abrasion and water. Most latex paints are suitable for intensive washing, which cannot be said about ordinary acrylate compositions.

Product types

There is no strict classification of mixtures with rubber additives, although manufacturers usually indicate their properties and purpose in the information on the packaging. The most common types of paints are:

matte, semi-matte and glossy - used for various purposes and surfaces. The glossy mixture is applied only to perfectly smooth walls or ceilings, since even minor irregularities and defects will become clearly visible under the gloss. Matte paint is better suited for less level walls and floors, while semi-matte acrylic copolymer latex paint has intermediate properties;
facade, for walls, ceilings or floors - determine the main purpose of the paint. Although a significant part of the compositions are universal and can be used for identical purposes, it is better to follow the manufacturer's advice and apply the paint to suitable surfaces. And yet, the question often arises as to whether acrylic or silicone facade paint is better;
washable, impact-resistant and moisture-resistant - characterize the main parameters of the coating after evaporation of the thinner (water). The properties of latex acrylic paints are similar to each other, so even mid-price compositions will provide high quality painted layers.

Material cost

The minimum price for acrylic latex paint is approximately 200 rubles/l. The cheapest products are from little-known companies. Sometimes ordinary acrylic dispersion is sold under the guise of latex paint, and the word “latex” appears only in the inscription on the label.

In order not to make a mistake with your choice, you should purchase products from more well-known manufacturers. The highest quality compositions can cost up to 1000 rubles/l or more, fully performing the functions assigned to rubber decorative coatings.

Below you will find a useful video on how to treat walls using acrylic latex paint Snezhka, and also learn about the advantages of this type of material:

Next we will talk about whether acrylic and latex paints can be mixed.

Latex ceiling paint

Painting the ceiling with latex water-based paint, even though this option is not cheap, is a very good solution. The coating created with its help is not only durable, but also looks aesthetically pleasing.

Benefits of latex ceiling paint

Fast drying. If you want to apply another layer, you will have to wait no more than 2 hours for the first one to dry.
Vapor permeability.
The ability to create both a glossy and silky surface, wash the surface.

Disadvantages of latex paint

Despite the fact that the surface with latex paint applied to it is not afraid of moisture, this does not protect it from the appearance of fungus. Therefore, painting should be preceded by applying a primer.
It is not very resistant to ultraviolet rays.
It does not tolerate low temperatures well, therefore, latex ceiling paint is acceptable for use only in heated rooms.

How to properly apply latex paint to a ceiling

To make the ceiling look beautiful, adhere to the following technology:

Add water to the paint to obtain the desired consistency, otherwise joints between the stripes will not be avoided. The optimal amount of water in paint is 5-10%.
Mix the solution well until milky using a mixer.
If a film forms on the surface of the jar, mix it with paint and then strain.

Remember: how smooth the surface will be depends on how hard you press the brush. If it is weak, you will get narrow stripes with a thick layer of paint, but when the pressure is excessive, drips will appear, and the layer will remain thin.

Types of paints and varnishes

Main components

Oil paints based on drying oil.

All paints are divided according to the type of binder used and the type of solvent.

The binder determines the main qualities of the paint, the service life of the coating and the speed of its drying. There are 4 common types of binders used for paints and varnishes: alkyd and epoxy resins, oil-based (on drying oil), latex, acrylic polymers.
Solvent components are divided into solvents themselves and diluents. The former reduce the fluidity and viscosity of the material. Thinners only reduce the viscosity of the paint.
To improve the characteristics of paints and varnishes, additives are added to their composition: stabilizers, emulsifiers, fungicides, antiseptics, etc.
Special paints belong to a separate category. These are anti-corrosion coatings, for example, Zinga electrically conductive paint. Analogs with antiseptic properties that protect the base from mold and rot. Compositions for removing small defects (irregularities, scratches, cracks), etc.

Oil and enamel compositions

The photo shows acrylic enamel.

Materials based on alkyd and acrylic resins include oil and enamel paints. They are suitable for painting metal, wood and plastered surfaces.

After drying, they are non-toxic, light and moisture resistant.

Oil paints are produced on the basis of drying oil. White Spirit, gasoline, turpentine or solvent naphtha are used as diluents. The compositions are not expensive, but they take a long time (up to several days) to dry. The main disadvantage is that the coating turns yellow over time.
Varnish is added to enamel compositions as a binder. It gives the coating gloss and aesthetics. The instructions recommend using such paints for external and internal finishing work on metal, wood, concrete, and plaster. Enamels are moisture and light resistant. They also have anti-corrosion resistance.

Emulsion and dispersion materials

Such paints are diluted, but not soluble with water. In them, the binder and pigment particles are distributed in a liquid medium, creating a stable emulsion.

When the coating dries, it is not washed away by water.

Emulsion compositions are economical, environmentally friendly and fire safe.
They fit well on almost any substrate.
They dry quickly and do not have a pungent odor.

Many people think that water-based and water-dispersion compositions are the same.

However, they are different.

Matte emulsions wash off over time. The dispersions are waterproof and suitable for use in damp areas.
Water-dispersion compositions are usually white; water-based analogues have a variety of colors.
Dispersions cannot be used at temperatures below +5 degrees. However, with the addition of modifiers, they are thermally stable. Such, for example, are fire-retardant paints for metal Polistil.

Note! The best analogues of water-based paints are based on acrylic resins and polymers. They have high elasticity and strength

Such compositions are frost-resistant after they are completely dry.
They are vapor permeable.
Suitable for alkaline substrates (concrete, plaster).
These paints are tinted very well.
Resistant to ultraviolet radiation, retains its original color for a long time.
They have the ability to repel water.
They have high mechanical stability.

Characteristics of latex interior paint

With the help of high-quality latex interior paint, the most daring design solutions are realized. The coating amazes with the shine of precious stones, the airiness of the finest natural silk, and the restraint of the matte surface.

Interior paint also includes washable latex paint. It has a number of positive qualities:

very decorative;
does not wash off with water;
resistant to abrasion;
has good adhesion to the surface;
fits well on all porous substrates, but not on floors;
It dries quickly - after just 20 minutes. You can apply a second layer, and it will dry completely after 1 hour;
elastic;
wear-resistant;
vapor permeable.

It is used to paint:

walls and ceilings in rooms where there is a combination of high humidity and intense load;
glass wallpaper, as well as other non-woven surfaces.

Some tips for use

Latex interior paints are recommended for finishing work in rooms with high humidity. Before you begin painting with washable latex paint, prepare the surface:

apply primer;
repair defects in the form of potholes and cracks, if any;
Bring the paint to the required viscosity by diluting it with water.

After these procedures, take a roller or brush and paint in one or 2 layers.

When such paint dries, a thin silky-matte film remains on the surface, preserving the relief of the base, which is important when painting over textured plaster or wallpaper.

The use of latex water-dispersion interior paint for premises has well-reasoned preferences over other types of finishing:

cheaper than many types of wallpaper;
you can combine colors and shades, creating all kinds of scenes on the ceiling and walls;
easy to apply, and you don’t have to be a professional; the manufacturer indicates simple rules on the packaging.
environmentally friendly;
tinting pastes for it are distinguished by a wide range of colors;
the paint has protective properties;
There is no unpleasant odor.

As an example of an excellent interior washable paint, we can cite “Tex Profi” super white, which is produced by the company of the same name. The base contains latex, which determines its properties:

matte texture;
breathable coating;
moisture resistance.

The effect will be enhanced by applying paint to a surface plastered with putty of the same brand. Despite all the good qualities, the product belongs to the budget category.

Latex interior paints produced in Germany under the PUFAS brand are of excellent quality. So, PUFAS MATT-LATEX:

used when finishing the walls of premises that have special requirements - kindergartens, medical institutions, schools, etc.;
has a high degree of whiteness;
absolutely moisture- and wear-resistant;
Universal tinting pastes are suitable for tinting.

What is the difficulty of applying

The basis of the water-based emulsion is water, in order to obtain reliable fixation, the surface is impregnated with the water base, and after drying it evaporates. However, the oil base does not allow water to penetrate into the wall; the drying process of the water-based coating involves evaporation of moisture; on such a coating it will not occur evenly, and accordingly the paint on top will come off. In those areas where the layer of oil composition has come off, adhesion will be good, in the rest it will be low.

There are three ways to solve the problem:

From a well-adhering coating, the film layer is removed, which makes impregnation difficult. First, the entire surface is washed with detergents, then they are washed off with clean water. Next, drying oil is applied to the dry wall; it will create an intermediate layer between the paints;
For a wall or ceiling with small cracks, use putty to eliminate them, or apply a primer mixture;
The best option remains to remove the old finish completely. It is carried out using a hammer drill or grinder. The equipment is used to remove the previous coating, the process takes a lot of time and requires a lot of effort. Or they use specialized washing solutions; they soften the composition, after which the finish can be removed with a spatula. They cannot cope in all cases, so they switch to a mechanical method.

The best option remains to remove the old finish completely.