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Do I need to prime the walls before applying putty? If you want the repairs done to last for more than one year, then the answer will be definitely positive. Primer is auxiliary material when preparing the walls for further finishing, but this in no way diminishes its importance. And priming before putty is no exception.

After all, the main functions of the primer are to create optimal conditions for good adhesion of the surface and the putty solution, strengthen and strengthen the planes of the walls and ceiling before applying it. In addition, this material will protect the coating from the formation of fungus and mold, mask minor defects and cracks. Also, the film-like coating will prevent various stains and rust from the fittings from appearing, which over time may appear through the finishing layer.

A primed wall will significantly reduce the consumption of putty solution and prevent it from cracking after drying. It is much easier to apply the solution to a surface treated with primer, even if you are new to this business.

Choosing the composition

The choice of primer composition depends on several factors:

• The surface material that we will process (metal, concrete, gypsum board, plastic, brick, etc.);
• What kind of work is it intended for - interior or façade;
• Method of application to the surface - roller, brush, spray.

A high-quality composition should have the following properties: absorb well into the surface and dry quickly. So, for porous surfaces such as gypsum or wood, a material is needed that penetrates deeply into the structure of the base and creates good conditions for interaction with putty. For these purposes, penetrating soil is used. At the same time, the composition partially fills the pores, thereby reducing the consumption of putty.

But for concrete slabs, tiles you need a composition that will promote adhesion of the solution to the base. Indeed, due to the smoothness of the coating and the practically absence of pores, the putty adheres very poorly to such walls. In this case, use an adhesive primer.

This type of soil is also called Concrete contact. Due to the content of quartz sand in the composition, it creates a rough coating on a smooth surface. And due to this, the solution adheres better to the surface. Consumption rate different types soil is specified in SNIP, these are average figures. In practice, there may be other material costs.

Primer for walls under putty can be water-based, organic or mineral-based. Water-soluble include acrylic, latex, silicate and silicone products. IN alkyd compositions The solvent is organic components. In mineral formulas, the base is cement, gypsum and lime.

Tip: Choose primer, putty and plaster from the same manufacturer - this will ensure good interaction between materials and high-quality coating for further decorative finishing!

On the market today building mixtures presented to the buyer huge assortment materials. And compositions, both imported and domestically produced, are popular.

According to the type of primer base, there are the following:

1. Acrylic - due to their component composition they have excellent technical characteristics. This type of soil is suitable for processing bases made of any material - from plastic to concrete. And at the same time it creates optimal conditions for applying putty. In turn, primers based on acrylic additives can be both universal and narrow-purpose - for metal, plastic, concrete, etc.
2. Alkyd primer - used for processing wooden bases, concrete, metal. Contains components that serve as protection against fungal growths and mold. It will protect the wood from swelling, and concrete coverings from moisture.
3. Latex type - used in rooms with high humidity: kitchen, bathroom, swimming pool. A film is formed on the treated surface that will protect the coating from moisture.
4. Polyvinyl acetate composition - this primer is used to treat walls that will then be painted.

Preparing for work

Before you start priming and filling, take care of the necessary tool. To work we need a roller, paint brush, container for primer. Accordingly, the walls also need to be put in order: cleaned of dirt and dust, removed old plaster or putty, remove any remaining wallpaper, clean out large uneven areas.

The primer for walls before puttying is applied according to the instructions, in which the manufacturer usually stipulates all the features of the application.

Features of priming before puttying

Before wallpapering, it is also advisable to prime the surface after puttying. This will reduce consumption wallpaper glue and will improve the adhesion of paper webs to the base. You can also make a primer for wallpaper yourself. The recipe for preparing this composition is as follows: mix PVA glue, plaster, chalk and drying oil. And we use it as a primer. The only disadvantage of this composition is that over time it turns yellow and can appear through the wallpaper.

Priming the walls with putty before painting with water-based emulsion is also necessary. After all, this procedure will significantly reduce paint consumption per sq.m. It is better to spend money on primer than to overpay for paint, the cost of which is much higher.

When puttying gypsum boards, you first need to putty the seams, joints, reinforced areas, and only then apply primer before finishing.

Whether it is necessary to prime between layers of putty - there is no definite answer. So, if the base is cement, then simply wet it with water. And when using the same type of materials, there is no need to apply primer.

It is important when renovating an apartment or house proper preparation walls for finishing works. Many people believe that for cosmetic repairs it is enough to plaster, paint or wallpaper without preliminary preparation walls As a result, the plaster falls off in pieces, mold and mildew crawl through the paint, and the wallpaper ends up on the floor. And the reason for this is quite simple - the lack of a properly applied primer for the putty.

Many craftsmen prefer to save money at this stage, preferring speed over quality of repair. But there are several reasons in favor of priming:

1. The most commonly used wall materials in construction - concrete, brick, wood and plasterboard - have varying degrees of porosity. A primer for puttying walls enhances the adhesion of compounds, prevents cracks and levels the surface.
2. The resulting film prevents the appearance of colored spots, mold and mildew on the finish.
3. Primers with special antiseptic and moisture-proof additives are recommended for use in wet rooms and facades.
4. Consumption of putty and others finishing materials is significantly reduced when working with a primed wall.
5. At independently conducting repair, a layer of primer on the surface facilitates even application of putty.

Before you apply a primer to the wall, you need to choose it correctly. The choice depends on the wall material, the composition of the primer mixture and the method of application.
Video

Do I need to prime the walls before puttying?

What primer is best to use?

IN construction stores a diverse range of compositions from domestic and foreign manufacturers, ready for use or diluted with water immediately before use.
Primers for putty are divided into groups according to composition: acrylic, alkyd, mineral, quartz, phosphate, glypthal and many others. Here short description some of them:

1. Acrylic primer is considered universal and can be used on any surface except metal. Subsequent finishing can be done after 5 hours.
2. Alkyd primer is best used for wooden walls in residential areas. For complete drying, it takes from 10 to 15 hours, depending on humidity and air temperature.
3. Glypthal primer is suitable for metal and wood, but due to toxicity it is recommended for treating well-ventilated rooms and external walls. Drying time is a day.
4. Perchlorovinyl and polystyrene primer is only suitable for external work on plaster, brick and wood.

All mixtures are divided:

• according to the degree of penetration and adhesion,
• by properties (antifungal, fireproof, etc.),
• by purpose (wood, concrete, brick, metal, universal),
• by place of application (residential or wet areas, external walls, universal),
• by application method (spray, brush or roller).

What types of primers are there?

Also, sometimes there is a choice - faster or cheaper. If you need it faster, then you should opt for a ready-to-use or concentrated composition, which is sufficiently diluted and can be primed. As a rule, such a primer for putty is applied with a roller or spray. More cheap option consists of purchasing a dry mixture, which is brought to readiness and applied to the wall using any in a convenient way: roller, brush, spray. Another way to save money is to purchase mixtures from domestic manufacturers. Their quality corresponds to foreign analogues, and the price differs significantly.

Application of primers

As mentioned above, primer for walls under putty can be applied with a brush, roller or spray.

Using a brush is considered the most expensive option, both in terms of mixture consumption and time. But at the same time the brush is able to penetrate into everything hard to reach places and carefully process the stucco molding, corners, etc. A plus is the ease of application and the ability for any adult to cope with the work.

Work paint roller much faster and more economical. However, its use is justified on large and flat surfaces. Therefore, most often the brush and roller are used simultaneously.

Pneumatic stationary or portable sprayer allows for thorough priming large area surfaces behind a short time without loss of quality. It is also convenient to use a spray gun to treat any complex surfaces. This method ensures an even layer of soil and low mixture consumption. Safety rules must be followed.

Primer application procedure

The priming process consists of several stages:

1. preparing the premises for work;
2. preparation of instruments;
3. padding.

First, you need to thoroughly clean the surfaces from dust, wallpaper residues, paint and other contaminants. To do this, it is better to use a damp sponge, a vacuum cleaner and other available means. It is recommended to cover the windows and floor with film to protect the wet soil from dust in the future. It is necessary to de-energize the room.

To apply the primer mixture you will need:

• Roller with brush or spray,
• Container for preparing soil,
• Painting tray,
• Ladder,
• Personal protective equipment – ​​hat, respirator, goggles and gloves.

The primer for putty is applied in one or several layers. For better coloring, you can take a composition of white or Pink colour, clearly visible on the wall. When using a roller, the layers first go horizontally and then vertically. This ensures an even layer without sagging or drips. The use of toxic primers requires strict adherence to the instructions included with the package.

On average, the primer for putty dries completely in about 4 hours. But the drying time can reach 24 hours depending on the composition of the mixture, the number of layers, room humidity and air temperature.
It is correct to treat the external walls of buildings in dry, warm weather at an air temperature of at least +15 degrees Celsius.

Applying a primer under putty is necessary both for interior spaces, and for external walls, regardless of the material used in construction. This will not only protect the house from fire and mold, but also reduce the consumption of finishing materials.

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Surface priming is an operation that precedes painting. The primer prepares the base for the subsequent application of finishing materials, protecting and strengthening it, improving adhesion properties.

Primer tasks:

• improving the adhesion of paint to the surface,
• strengthening the foundation,
• leveling or reducing absorbent properties,
• tying non-adjacent parts of the base,
• reduced consumption and uniform applying paint,
• protection against mold and mildew.

For priming, paints and special primers are used. Most often they are made in relation to a specific material, for example, wood, plastered walls, metal. There are also preparations and paints general use. The primer can be ready-to-use or in the form of a concentrate that must be diluted in certain proportions.

2 Tools

To work you will need the following tools and Additional materials:

3 Primer of walls inside the house and facades

When painting walls, a mandatory rule is that the base should always be stronger than the paint coating applied to it. Primers are mainly applied to plaster or adhesive paint coatings. Their task is to bind numerous particles of dried paint or plaster, which improves the adhesion of paints and makes the base more uniform. They also reduce its absorbent properties, due to which less paint is consumed when painting (usually only one coat of paint is enough after priming). In rooms where there is high air humidity, a waterproof barrier is created on the wall surface. Primers can also be applied to plasterboards and bare exterior walls.

It is better to prime the walls at temperatures above +5 °C.

ATTENTION:
Fresh plaster can only be primed after 3-4 weeks.

The primer paint should be thoroughly mixed and thinned if necessary. special means, which is recommended by the manufacturer for these purposes.

ADVICE:

If you are not sure which product to choose - a special paint or a primer, conduct a simple experiment. Rub the wall with your finger. If after this a dirty mark remains, this means that the wall must be primed before painting.

The facades are primed in the same way. It must be remembered that work must be performed on dry surfaces not heated by the sun.

4 Primers for walls

There are drugs available on the market that perform several functions simultaneously and are used in any climatic conditions. Their choice depends on the condition of the base and the type of paint that will be used to paint the surface.

The most popular and at the same time universal are:

- primer-strengthening impregnations– most often these are aqueous dispersions of acrylic resin with additional substances. They strengthen the base and protect against moisture, while simultaneously forming a vapor-permeable film. In addition to improving the adhesion of exterior paints, they also prevent painted walls from showing areas of discoloration. Such impregnations are used for priming walls inside the house. Apply according to plasterboard boards, gypsum, cement-lime and lime plasters;

- acrylic primers and latex paints – used for both external and interior work. They penetrate deeply into the wall and strengthen the surface. They are used as a primer layer for decorative emulsion and acrylic paints;

- solvent-based primers– these are products that are deeply absorbed into the surface, water-resistant, but highly flammable. They bind particles of plaster and dust located on the surface of the walls. They do not retain water vapor absorbed and evaporated by the walls. Suitable for both indoor and outdoor use. They are used not only for priming plaster and painted surfaces, but also wood and asbestos-cement boards;

- primer acrylic varnishes– penetrate deeply into the wall and have a high degree of water resistance. They bind dust particles on the wall surface and improve the adhesion of paints. Used for priming external walls;

- aqueous silicate primers– intended for priming external lime, cement-lime plasters, sand-lime bricks and concrete. They can also be used to prime old lime, cement-lime and silicate paints. Absorbs deeply into pores without creating a mineralized coating on the surface;

- epoxy paints - most often two-component. The contents of both packages must be mixed before use. Dissolves in water. Used for priming concrete surfaces indoors.

ATTENTION!
Do not mix medications different manufacturers. Despite the same purpose, they often differ in chemical composition. Mixing can lead to deterioration of properties, and even to their change.

5 Knotting

Wood is primed mainly to protect it from moisture and reduce its absorbent properties. Primers are absorbed into the pores of the wood, compact them and protect them from destruction of the decorative layer in the event of deformation and expansion of the wood. Some preparations lead to lightening of the wood, which is of particular importance before varnishing old or previously repeatedly painted wooden surfaces.

Before painting wood, especially fresh wood, it is necessary to treat the knots and coat its surface with a primer.

Knot processing Using a spatula, remove the resin from the knots. If resin still appears after this, the knots should be heated with a heat gun and the leaked resin should be collected again with a spatula.
The surface must be thoroughly sanded sandpaper. The dust formed after sanding is best wiped off with a cloth soaked in solvent.
Cover the knots with a special insulating preparation or shellac, which will retain the resin flowing from them.
Coating with primers Before processing, the wood must be dry, smooth and clean. There should be no greasy stains or resin stains on it. Fat from wood can be removed with a nitro solvent or extraction gasoline. The primer should be thoroughly mixed. If it is drying oil, then the first layer should be applied after diluting with extraction gasoline in a 1:1 ratio.
The primer is applied with a brush. After treatment, the surface can be coated with paint the very next day.

Primers for wood:

- drying oil– a water-repellent product that penetrates deeply into the wood. It can be used for both interior and exterior work;

- acrylic primer paints– diluted with water to make the color of the base uniform. Used before applying paints, stains, impregnations or before varnishing;

- alkyd primer paints– used for priming wood before painting it with latex or alkyd oil paints;

- styrene primers– create a film on the wood that improves the adhesion of external paints, and at the same time protects the wood from rotting. Can be used for external and internal work. They are an excellent base for alkyd and phthalic enamels;

- nitrocellulose primer varnishes– used for applying a primer layer under floor varnishes. They protect parquet from darkening thanks to the substances contained in varnishes for outdoor use;

- oil-based phthalic primers– can be used not only for priming wood and wood materials, but also for metal and walls. Improves paint adhesion. They are applied to wood that has been previously treated with a primer, such as drying oil.

6 Metal primer

A primer for metals is designed to protect them from corrosion, as well as bind small contaminants deposited on the surface. The primer also ensures more economical use of paint applied to the surface. Anti-corrosion and primer paints are used to prime metal.

	Before priming, the metal surface must be cleaned of rust, dust and degreased. For degreasing, you can use, for example, detergent, solvent or ethyl trichloride.
	If there is on the surface old paint, it should be matted (scratched) with sandpaper or a special preparation for surface treatment. If the old paint is in poor condition, it must be removed using a wire brush, an electric heat gun or a special preparation for removing old paint coatings.
	The primer paint should be stirred and thinned if necessary. It is applied using a brush or spray. The number of layers is determined by the manufacturer. Each subsequent layer should be applied after 2-4 hours. The next day you can apply paint. If painting is done using nitrocellulose paints, then a minimum of 72 hours must pass after applying the primer.

ATTENTION!
Some topcoat paints have such properties that they do not require a primer to be applied to the base.

Primers for METAL:

- primers alkyd enamels – their purpose is to protect the metal from rust and, therefore, from damage paint coating. Used as primers for paints for application on external surfaces. Often, very careful removal of rust from the metal surface is not required;

- polyvinyl primers acrylic paints – intended for priming galvanized or aluminum surfaces. They have anti-corrosion properties. They can be used to paint surfaces covered with a small amount of rust;

- primer vinyl and polyvinyl paints– have anti-corrosion properties and improve the adhesion of external paints. Used on steel and cast iron;

- nitrocellulose primer paints– do not have anti-corrosion properties, but only improve the adhesion of external paints. Therefore, before application, the metal must first be coated with anti-corrosion paint. If it is aluminum or galvanized metal, then such enamels are applied as a layer that binds the oxidizing particles of these metals. Designed for subsequent painting with external nitroglycerin paints;

- primer anti-corrosion paints based on phthalic resins– used as primers for phthalic, modified, nitrocellulose, polyvinyl or chlorinated rubber enamels. Protects against corrosion and improves the adhesion of external paints;

- primer acrylic paints– designed for priming metals with weak adhesion – zinc, aluminum. They do not have an anti-corrosion effect, but only improve the adhesion of external paints;

- chlorinated rubber primer paints– used on steel and cast iron. These primers protect against negative atmospheric influences and from rust. Used under chlorinated rubber and alkyd enamels;

- rust stabilizer– a new product among primer paints for metal – it has a deeply penetrating effect. Can be applied directly over rust, insulates and stabilizes rust damaged metal surfaces. It can be mixed with alkyd (glycero-phthalic) paints, varnishes or solvent-based varnishes, increasing their anti-corrosion properties.

7 Primer for glass and plastics

The purpose of priming glass and plastics is to ensure better adhesion of external paints. Primers are applied in the same way as on previously described materials.

Preparations for priming glass and plastics:

- alkyd based primers– used for applying a primer coating on glass, tiles ceramic tiles, plastic and metal;

- two-component epoxy primer varnishes– provide external paints excellent adhesion to slippery surfaces of glass, ceramics and plastics.

Final leveling becomes a mandatory step, regardless of what materials are used in the production of walls, and it does not matter whether the surface is plastered. Ignoring this step leads to a damaged, ugly appearance walls Before moving on to the leveling itself, the walls must first be primed before puttying. But is treatment necessary?

A special layer of primer after finishing putty necessary to protect the final finish. The same question concerns the need for priming before puttying work. The use of each composition causes certain consequences. Studying information from the manufacturer will help you decide which materials are best suited. But the main advantages of priming are easy to highlight:

• Each layer of the original materials will hold tighter;
• The bases do not fall off or crack over the entire area;
• The plastered wall becomes protected from deformation and fungi and mold.

Do I need to prime before applying putty? If you choose the right materials, then priming determines how high-quality and durable the repair work will be in principle. Each composition, with its properties, is suitable only for certain surfaces. All these materials are different from each other:

• brickwork;
• concrete blocks;
• wood;
• drywall.

The porosity and density of these materials is at at different levels. However, the initial primer before plastering the walls increases strength in any case. The composition adds grip and solidity.

Benefits of using a primer

Modern primer for walls for putty has a unique composition that provides excellent adhesion to almost any material. Plaster or putty holds up well with this processing method. But main question What should come first - primer or putty? It is worth taking a closer look at the benefits for buyers from the use of materials, this will allow you to find the answer to the question of whether it is necessary to prime the walls before puttying.

• A primer before filling walls ensures that gaps and cracks in the material are filled. This not only helps to increase adhesion. Material consumption per unit area is reduced. Compared with primers, putty mixtures are much more expensive. But when carrying out construction work, everyone usually tries to save money, which is also facilitated by the decision to prime between layers of putty.
• People often have problems with old stained walls. Contamination appears again after finishing treatments or after they putty. Defects on the surface can disappear if you decide in time whether it is necessary to prime the putty before proceeding to painting .
• When pre-primer on the walls it is then easier to putty, because in the future the mixtures will quickly fall on the surface that has previously passed through special treatment. Whether it is necessary to prime after puttying is another question.
• When applying putty, you can prevent biological threats of various types such as rot and fungi, and the appearance of other dangerous microorganisms.

Related article: Methods for leveling walls under wallpaper

Nothing to add. Even a newbie construction work it becomes clear whether the walls need to be primed after puttying. But remember that first you need to prime, only then putty or putty.

About the correct priming technology

Before applying a primer before plastering the walls, you need to make sure that all preparation steps have been completed. Otherwise, it will not be possible to achieve high results without additional costs. How to prime walls correctly? First you need to find out which ceiling primer is suitable in a particular case. It is better to find out in advance how to apply the material correctly and what tools are recommended.

Separately, we obtain information about how long it takes for the surface with the layer to dry. Then unsuccessful visual changes will not accompany the renovation. It’s easier to figure out how to prime the walls before puttying , than to correct the mistakes made later.

In the video: is it necessary to prime surfaces before puttying?

Types of surface primer

The primer mixture must be selected according to the base material. The answer to the question depends on this: is it necessary to prime between layers? various surfaces required to apply different mixtures. In modern industry, many primer compositions are recommended for use in different forms release. Already have ready-made options, but there is something that you still have to dissolve or mix yourself.

The base material together with the walls determines another no less important factor- this is the time it takes for the surface to be puttied after the primer is applied. If you do not wait, you will not be able to achieve the desired result.

Universal mixtures

Most often we are talking about water-soluble acrylic putty compositions with a separate layer. They are universal and suitable for priming any surface, which has become the reason for their widespread use. This is how any finishing primer works. This best option in order to prime the following surfaces:

• metal where painting is used;
• wood;
• foam concrete ceiling;
• clay walls;
• concrete blocks;
• brickwork (in this case, priming the walls for putty will not be difficult).

Related article: Advantages of priming before laying tiles and types of compositions

Polystyrene and perchlorovinyl primer

Perchlorovinyl compounds can be immediately used for walls made of brick or cement plaster, which is used in advance. The material is also applied on top of the plaster itself. This is usually done before starting final finishing. But such a primer for putty is used more effectively for work on external walls. This species is toxic to human health.

Polystyrene is another substance that poses a danger to people until it completely shrinks. Users are advised to additionally protect themselves with goggles and gloves.

From phenol

This primer is the ideal accompaniment for:

• plywood;
• good fiberboard;

Wall putty also copes with plasterboard very, very well. It is convenient to continue after the applied mixture is ready (after 20-30 minutes). Is primer necessary at all? The answer is obvious.

Glypthal mixtures

This perfect option for coating wood, although this mixture can also be applied to metal, even painted. But it’s better not to think about using this particular variety in living conditions, it is too harmful for humans. However, this information will help you figure out which primer is best for walls under putty, because not everything is equally useful for both humans and surfaces.

Alkyd mixtures for wood

The optimal solution for processing and painting wooden walls. Thanks to these compositions, there will be no need to worry about the premature appearance of rot. Puttying the walls also protects against this. You just need to prime consistently and carefully.

What primer to use before puttying ? When choosing, the information from the manufacturer on the packaging will serve as a guide. Usually it’s easy to find all the relevant recommendations there, including on primer and putty .

Preparation process

The sequence of actions will be as follows:

1. Complete removal of dirt from walls. It is necessary to blow off the dust and get rid of adhering particles of the solution itself, and remove the old coating to the base.
2. At high level Due to the humidity of the walls, drying is required before using the primer. Easier to use construction hair dryer, otherwise you won’t be able to achieve the corresponding result later. Then it doesn’t matter what is used: putty, primer .
3. Degreasing compounds will help get rid of greasy stains.

Processing walls during repairs consists of many stages, especially when the walls come across problematic ones. But if processes such as plastering, painting or puttying are mandatory, then many people forget about the primer or believe that it is quite possible to do without it. Meanwhile, priming the walls before puttying is a very important process, which will not only greatly facilitate subsequent work, but will also preserve the beauty of the repaired walls for a long time. Why do you need to prime the walls and how to do it yourself?

The primer mixture is a special liquid that contains resins, drying oil, antifungal additives and other components that help create the thinnest surface on the wall. protective film before the next coating.

Priming the surface will not require significant preparation, such as, for example, before peeling off old wallpaper, it will not take too much time, and the price of the materials is quite affordable even for the most budget renovation. Unless, of course, you buy a heavy-duty anti-corrosion primer mixture for metal from the best European manufacturers. But this simple repair procedure has several impressive advantages:

• strengthens the loose and porous wall, makes it stronger and prevents further destruction under putty and wallpaper;
• bonds the surface to the next layer of wall covering, prevents the putty and paint from cracking, and the wallpaper from swelling with bubbles and peeling off;
• does not allow the wall to suck out liquid from the putty layer: the mixture does not dry out or crumble;
• saves putty consumption due to more even application;
• protects the wall from mold, mildew, rust and other troubles.

Classification of primers

In recent Soviet times, walls were primed before puttying using all sorts of available means - wallpaper glue or PVA glue diluted with water, paint with a solvent, drying oil if it was wood. Today on store shelves you can find several types of priming fluid, which differ in several categories.

How to choose a primer for walls before puttying?

To choose the right primer for putty work, you need to consider several factors:

• what surface do you need to prime;
• room humidity;
• type of application - roller, brush or spray;
• Do you have time to prepare the mixture or is it better to buy ready-made?

To treat walls for putty, you can choose universal mixture on acrylic base. For initial treatment of surfaces made of mineral materials: brick, concrete, plaster, etc. - A mineral primer composition is also suitable.

Good to know!
If you are pressed for time, buy a quick-drying liquid, if you want to save a little money - a concentrate or a dry mixture. Primer is ideal for porous walls deep penetration, when the surface is loose, it is better to stop at strengthening, and if the air in the apartment (house) high humidity, it is worth choosing a moisture-proofing primer liquid.

In repair shops you can find brands like Russian manufacturers(TEX, Moment, Eurolux, etc.) and trusted foreign companies (Ceresit, Tikkurila, Knauf). They differ not only construction characteristics, but above all the price tag.

For example, a regular acrylate strengthening primer for putty from the Russian company TEX can be purchased from 120-150 rubles. for 2.5 kg, and the adhesive composition from Tikkurila, designed to maximize the adhesion between the wall and the putty, will cost from 2,000 rubles for 2.5 liters. However, in fairness, it is worth noting that more expensive primer liquids have less consumption: 8-10 sq. m/kg on average.

How to apply primer?

One of important issue surface priming is a method of applying the mixture. It depends on the material on which it will lie protective layer, and also on why the wall is primed - to prevent mold, better adhesion to putty, to strengthen the old porous wall, etc. There are three main types of priming:

• using a brush;
• primer roller;
• sprayer (spray).

The most common method is to coat the walls by priming with a brush. The brush easily penetrates into crevices, but this processing process is long and quite labor-intensive. In addition, the liquid mixture can flow along the wall, along the hands, which also does not add pleasant sensations to the work. It is better to use a brush on small, flat surfaces, for which one layer is enough.

A priming roller is another old tried and true tool. It is convenient, the primer liquid is applied quite quickly, but a roller is also suitable for perfectly smooth and even surfaces.

Today, renovation specialists increasingly recommend applying primer with a garden sprayer or a regular spray bottle. It is ideal for any type of wall, the composition will thus penetrate into the most problem areas(behind the battery, riser, in the corners). And most importantly, the priming process itself will be much faster and easier.

How to make a primer for putty with your own hands?

Primer for putty consists of 3 stages:

• surface preparation;
• room preparation;
• direct priming.

To prime the surface, the most important thing is to thoroughly clean the wall. It is necessary to remove all traces of old wallpaper, clean the surface, and remove dirt and dust. If possible, it is better to vacuum the wall, because the residue construction dust can create a thin film, and the putty layer will subsequently crack and crumble.

Then you need to prepare the tools and the room. You will need:

• roller, brush or spray:
• container for priming liquid;
• ladder;
• gloves and safety glasses:
• rag.

The correct primer before puttying is done quite neatly and without unnecessary dirt, so it is not necessary to tightly wrap all the furniture in the room and close the gaps between the doors. The main thing is to cover the floor with film, so as not to later wash off drips of construction fluid, and turn off the power to the room.

The third stage is priming. Apply the primer in one or several layers, moving from the floor to the ceiling. The drying speed depends on the number of layers and the type of liquid: for example, when using a quick-drying mixture, the wall will be ready for puttying after 4 hours, but the average drying time is 8-12 hours.

Priming the walls before puttying is a very important and at the same time inexpensive stage of repair. The simplicity of the work will allow you to easily do everything yourself, and consultants in stores will always help you choose a high-quality primer mixture that is suitable for your walls.