Deep penetration primer. Characteristics

In construction finishing works ah intermediate preparatory stages are very important, because the service life and reliability of the finished surface will depend on them. One of these steps is priming. Since all materials are different, and there is no universal means of processing, in each case they select their own special coating. Consider primers deep penetration. In what cases are they used, how do they work and what functions do they perform?

What surfaces need to be treated?

The repaired surface may consist of the most different materials: wood, or cement-sand, concrete. All of them have different state and properties that can affect the adhesion of the finishing materials to each other and the further quality of the service life of the finish. In order to minimize the risk of their separation from each other and to best prepare the work surface, it is necessary to coat it with a primer on the appropriate material.

Purpose and properties of deep penetration compounds

A deep penetration primer is used to prepare surfaces that have various properties that can help improve the quality of the finish:

• increased water absorption of the base;
• fine surface porosity;
• a base containing sand and various mineral components;
• chalky soiling, dustiness, etc.

A deep penetration primer reduces the ability of the work surface to absorb water, improves the surface properties of loose materials, making their structure stronger.

How to make a choice?

What is the best deep penetration primer? When choosing a material for surface treatment, you should not lean towards the cheapest options. This is the case when the miser pays twice: practice shows that the compositions of the lowest cost do not provide the necessary qualities for further work, the applied building materials do not have a reliable adhesion to the base, the wallpaper peels off, and plaster and other finishing coatings exfoliate from walls, ceilings, floors. Reliable is a deep penetration primer, the price of which starts at rubles per 10 liters.

Priming composition "Optimist"

Primer "Optimist" deep penetration is produced in Russia, perfectly adapted to the materials used in the country, climatic conditions and other features of the processed surfaces. It is suitable for both outdoor and indoor use. The basis of the composition of the primer is an acrylic polymer, which provides deep penetration into the surface and good surface-adhering properties. The composition includes antiseptic additives that prevent the development and growth of fungi, mold and other microflora.

Primer "Optimist" deep penetration is used to treat surfaces made of concrete, brick, drywall, wood. Moreover, the composition should be applied before each subsequent stage of finishing, which will ensure reliable adhesion of materials. The applied primer layer after drying becomes transparent, colorless, evens out the absorbing capacity of the surface and reduces the consumption of applied paint, water-dispersion and plaster compositions.

This product is also used to dilute water-based paints.

deep penetration primers "Optimist"

• Entry into the surface: 1-5 mm.
• Consumption depending on the state of the surface: 100-250 ml/m 2 .
• Full drying time: 2 hours.
• Without smell.
• Color liquid composition: white.
• Application conditions: in rooms with air and working surface temperature +5…+35 o С.
• Storage conditions: in original packaging closed at a temperature of +5 ... +30 ° C up to 1 year.

Description of Ceresit Deep Penetration Composition

Primer "Ceresit" is also popular among builders. The products of this manufacturer are of high quality, have a complex improved composition, and are produced according to German technologies.

The primer is applied to all surfaces with the absorbing basis: walls, floors, ceilings. Increases adhesion of the working surface, binds dust, strengthens the base. Prevents drying of thin leveling compounds, promotes better spreading floor coverings and eliminates the appearance of bubbles on the finished surface.

Primer "Ceresit" works well with highly porous bases: it best penetrates into their structure and strengthens it as much as possible. Moreover, for such cases, the emulsion is diluted with water in a ratio of 1: 1 and applied in several layers if necessary. Due to its composition and ability to penetrate deep into the surface, the primer dries for a long time (4-6 hours). When used on plaster and wood boards drying time is extended up to 24 hours.

The main technical characteristics of the primer Ceresit

• The composition is based on acrylate copolymers.
• Solution color: light yellow.
• Consumption depending on the absorbency of the surface: 100-200 ml/m 2 .
• Drying time: 4-6 hours (in some cases up to 12 hours).
• Application: at air humidity not more than 80% at temperature from +5…+35 o.
• Storage: in a sealed package at a temperature of +5…+35 o C for no more than 12 months.

Comparison of the compositions of "Optimist" and "Ceresit"

Which deep penetration primer is better: "Optimist" or Ceresit? It is difficult to answer unambiguously, since a certain area of ​​\u200b\u200bapplication is more suitable for each, despite their versatility. Analyzing specifications These samples are hard to miss: "Optimist" is more suitable for surfaces that do not have high porosity, which the German representative can handle better due to its more complex adapted composition. For example, when preparing a concrete base for flooring.

For normal brick, block and plaster surfaces, any deep penetration primer will do. Their consumption per m2 is the same for one layer, if we compare coatings of the same porosity. It is the structure of the base that affects this factor.

In many cases, a single deep penetration primer is applied to the entire object. The price in this case is important: "Optimist" costs from 400 rubles / 10 liters, "Ceresit" - an average of 550 rubles / 10 liters. These are averages, implying optimal. There are also expensive premium formulations.

Primer for metal surfaces and wood

Before painting wooden elements and metal, the preparation of the base should also be carried out. For this purpose, a special primer was developed in Russia, GOST 25129-82 describes it. Composition brand - GF-021. It is made different manufacturers, but they all adhere to the State Standard.

The primer GF-021 has a general industrial purpose, it is a paint and varnish material. Provides uniform paint application.

Main technical characteristics:

• color: red-brown;
• consumption: 60-100 g/m 2 for single-layer application;
• drying time at +20 o C: 10-16 hours/layer.

Before use, the primer must be mixed, diluted with white spirit. During work, the room must be ventilated. The composition should be stored in a tightly closed container away from sunlight.

When choosing a primer GF-021, look for the inscription GOST 25129-82 on the package. In this case, you will purchase a product made according to the standard. The inscription TU indicates that the manufacturer has made his own changes to the composition, which may affect the final properties of the coating.

What is the best deep penetration primer? Choose compositions carefully, read the technical specifications, use your own or someone else's experience. Choose the material suitable for specific conditions, then the result will surely please.

The well-known "diseases" of plaster are peeling and cracking, and if the second depends on the right components and conditions for drying, then the first can be prevented by such a "medicine" as primer walls for plaster. Without knowing the specifics of wall decoration, you can guess for a long time why a primer is needed if plaster mixture and in itself has sufficient viscosity. Turns out, Preliminary processing surface for subsequent plastering is not just needed, it is essential to increase the adhesion of the coating with one or another wall material.

Primer walls for plaster, why is it?

I must say, despite the fact that the plaster is very reminiscent of putty in its composition (a noticeable difference in grain size and fillers), the adhesion of the latter is much better, which allows not only smearing it with the thinnest layer, but also polishing it by sanding. With plaster, such a number will not work until it is in its raw form, its viscosity is quite high, but over time, peeling of the wall covering in large areas is possible.

This is due to the rapid absorption of moisture from the finishing mixture by the material that makes up the surface of the wall, as a result of which in some places the dehydrated composition does not have time to set. Therefore, after thoroughly cleaning the walls, it is advisable to generously treat them with a special compound - a primer, using a roller or maklovitsa. There are different types this finishing composition, which differ from each other by the result of surface treatment.

So, one primer for plaster can penetrate deep into the thickness of concrete, providing it with additional protection against dampness and at the same time increasing surface adhesion, another mixture, once on wood, acts as an antiseptic. For the most part, a plaster wall primer, regardless of composition, stabilizes the porosity of the substrate for wall covering materials, allowing the plaster to be applied in an even layer. That is why any finishing work, especially on complex surfaces, should begin with priming the prepared surfaces.

There are primers used for pre-impregnation, as well as compounds to ensure adhesion between layers of the same coating.

For which surfaces is a primer used for plaster?

Beautiful smooth walls can be not only in those cases when they are made of tongue-and-groove slabs or if drywall was used, an excellent result can be achieved with simple plaster, and if it is also decorative mixture no further finishing required. However, not every material from which the wall is made is ready for plastering, and a primer for plaster is not the composition that should be saved on.

Should stock up in advance different types soil, if you used different wall materials in the rooms. What compositions, and what surfaces can and should be covered:

• loose (porous) or unreliable surfaces - reinforcing soil;
• freshly plastered surface, asbestos cement walls - deeply penetrating primer;
• metal structures, cleaned and with traces of corrosion - anti-corrosion primer;
• lumber and other wooden surfaces - antiseptic impregnation;
• surfaces with household stains of organic and inorganic origin - anti-stain primer.

Any of the above substrates must be primed before the walls are plastered. In particular, concrete and brick can be attributed to loose and porous surfaces. Freshly laid plaster, primer and putty before applying which have already been carried out, still needs additional priming if wallpaper is glued on top. There is no need to additionally treat the following surfaces:

Primer on plaster and tiles - treatment if necessary

Wallpaper on bare concrete can be glued only in exceptional cases, for example, if they have a high density, and the walls are fairly even, which is generally rare. Therefore, plastering the walls before pasting them is a completely normal stage. repair work, which can only be avoided with the help of drywall. However, and having achieved the ideal smoothness of the walls in the room, you should not rush and measure the wallpaper, the primer on the plaster will be useful.

For this purpose, a general purpose composition is used; there is no need to look for deep penetration liquids. When processing a plastered surface, on the contrary, try not to moisten it too much in order to prevent the finishing layers from soaking. Thus, you will use two different types of liquid: a primer before plaster and after it.

There are also special formulations for coating ceramic tiles, they may be needed if you suddenly decide to stick glass wallpaper on the walls in the kitchen without removing the old finish. This type of primer is designed for surfaces that do not absorb water, which means that it can be applied if necessary to glass or laminate. Although, it's hard to imagine that you will ever need to wallpaper glass.

What should be the primer of the walls for plaster? Video

Priming walls before plastering - the nuances that everyone needs to know

This time I decided to devote an article to such an important topic as priming walls before plastering. It is from this procedure that the durability of the finish largely depends. Therefore, further we will consider how and in what cases walls should be primed, and how to do it correctly.

Do you need a primer at all?

Many beginners mistakenly believe that the purpose of a primer is merely to improve the adhesion of plaster to smooth surfaces such as concrete. Therefore, they doubt whether it is necessary to prime the walls before plastering, if the base, for example, is brick?

So that you yourself can answer this question, next I will talk about all the functions that the primer performs, in addition to improving adhesion:

• strengthens the surface, gluing dust, grains of sand, loose pores, etc., thereby preventing its delamination;

The lack of soil under the plaster can cause it to swell.

• ensures uniform absorption of the plaster into the surface of the base;
• prevents the appearance of mold, and also protects them from other biological influences, due to the content of antiseptic compounds in the composition;

The primer will prevent mold

• prevents the appearance of salt stains on the surface.

To summarize all of the above, the primer increases the durability of the finish, regardless of the type of base. I hope that now you will not think about whether it is necessary to prime brick wall before plaster.

Soil selection

Before proceeding with priming, it is extremely important to choose the right primer. Let's see what primers exist and what primer to use before plastering walls.

So, on sale you can find the following compositions intended for priming:

Universal primer

The name of these primers speaks for itself - they are universal. They can be applied to any type of wall, except for wood and metal.

Universal compositions have all the functions necessary for a primer:

• increase adhesion;
• strengthen the base;
• have an antiseptic effect.

Universal primer for walls under plaster Dufa Putzgrund 10l

It should be noted that universal primers are water-based, due to which they have the following properties:

Therefore, before plastering, most often, these types of soils are used.

Scheme of action of deep penetration soil

deep penetration

Deep penetration compounds are able to penetrate into the porous structure to a great depth (up to 10 cm), while they stick together the pores. Thus, the main task of a deep penetration primer is to strengthen the surface of the walls.

Such a composition can be used if the surface of the walls, for example, is a shingle covered with clay. You will also need a deep penetration primer if you plan to apply new plaster on the old layer of plaster, which "dusts" and crumbles.

Deep penetration primer Perfekta "Expert" 5l

Deep penetration compounds, like universal primers, are water-based, so they have the same advantages - no odor and high drying speed.

Adhesive primer allows you to apply plaster even on tiles

adhesive

As you might guess, these compounds are designed to improve adhesion between materials. Therefore, they should be used on smooth surfaces with poor adhesion, such as concrete, old paint or even tiles.

The principle of operation of adhesive primers is based on the fact that they give the surface some roughness due to the presence of quartz sand and other abrasive in the composition. Thus, after treatment with an adhesive primer, smooth surfaces feel like sandpaper. As a result, plaster, putty and other coatings adhere well to them.

The principle of operation of the adhesive primer

It should be noted that adhesive primers exist both on a water basis and on a base. organic solvents. The latter contain alkyd resins in their composition. They can be used to process wooden walls.

Adhesive primer for wall plaster Tikkurila Otex

Priming technology

So, we figured out how to prime the walls. Now let's get acquainted with the technology of processing walls.

This procedure can be conditionally divided into several stages:

Stages of priming walls for plaster

Preparation of primer and tools

First of all, you need to determine the amount of soil. To do this, you need to know the quadrature of the walls and the consumption of the composition.

Consumption depends on the surface of the walls and the type of primer itself. Therefore, manufacturers usually indicate this parameter on the packaging.

Consumption of adhesive primers from different manufacturers

Also, don't forget to add 10-15 percent stock. When buying soil "back to back", you most likely will not have enough of it.

Long pile paint roller

In addition to the primer itself, you also need to prepare inventory:

• paint roller - the choice of roller depends on the type of surface that you will be processing. So for brick walls it is better to use a roller with a long or medium pile. concrete walls can be processed with a foam or velor roller;
• cuvette for roller;

In the photo - a cuvette for a roller

• paint brush - needed for processing hard-to-reach areas.

Removal old plaster perforator

Wall preparation

It is necessary to start work with your own hands by preparing the walls. This procedure is carried out as follows:

1. if the wall is not prepared for plastering, it is necessary to get rid of the old coating. To remove the plaster, you can use a perforator with an appropriate nozzle.

It should be noted that you can only partially clean the walls of old plaster, i.e. remove only those areas that exfoliate. In this case, be sure to “grab” a few centimeters of plaster around the perimeter, which holds well;

Walls need to be cleaned of dust with a brush

1. then the walls must be cleaned of dust with a brush or even a vacuum cleaner;
2. dust-free walls should be wiped damp cloth and dry.

This completes the preparation.

Padding

The instructions for priming the walls look like this:

1. First of all, you need to prepare the primer, having read the instructions for use on the package. When the composition is ready for use, you just need to shake it thoroughly.

Only pure water can be added to the primer

Some primers are sold concentrated and require dilution before use. In this case, add water to the soil in the proportion indicated on the package;

Pour the primer into the cuvette

1. then pour the primer into a special compartment of the pallet. The rolling platform must not be covered with liquid;
2. then dip the roller into the ground and roll it slightly on the site so that excess liquid is drained from it;

Wet the roller in the primer

1. now roller the wall. Roll it out so that the soil lays down in a uniform thin layer. There should be no streaks and areas with a large accumulation of liquid on the walls.

Apply primer in an even thin layer.

1. treat hard-to-reach areas with a primer using a paint brush;
2. after that, you need to wait for the soil to dry. IN normal conditions, i.e. at a temperature of 20-25 degrees, it will take 3-4 hours to dry. If the room is cold, drying may take 12 hours or more;
3. after the walls have dried, the primer must be reapplied in the same way.

If it turned out that you do not have enough soil, you can increase its amount by adding water. The only thing is, do not add water in the amount of one part to two parts of the soil.

Now wait for the second layer to dry. To make sure that the priming is done well, run your hand along the wall. If the hand remains clean - you can safely proceed to the application of plaster.

Primer of walls before plaster: what compositions to use for brick surfaces, video, photo

How to choose the right primer for different surfaces

The use of primer mixtures during repairs is quite reasonable, because any finishing material must adhere to the base very firmly and reliably. For this, a primer is used, and this article will help you which one to choose for walls and flow.

Types of modern primer

Modern manufacturers offer a huge amount of primer mixtures. Choose necessary types primers for concrete, plaster, putty is not always easy. For this purpose, it is necessary, first of all, to know the varieties. It is impossible to use one type of primer for both paint and wallpaper.

types of primer

Depending on the field of application, the types of primers for walls and ceilings are divided into the following groups:

1. Alkyd: used only for wooden surfaces and metal structures;
2. Acrylic: have universal properties, respectively, suitable for different surfaces. Primers from this group penetrate 1 cm deep. This property allows the use of acrylic primers for deep impregnation grounds;
3. Aluminum: used only for wood. With their help, the wood is completely isolated from moisture, thereby minimizing the occurrence of such unpleasant phenomena as mold or fungus;
4. Polyvinyl acetate: are used only when using paint of a special composition for priming concrete, wood, metal, plaster;
5. Shellac: Helps prevent wood resin from escaping, respectively, is used as a type of primer for ceilings and walls;
6. Epoxy: applicable as a deep impregnation of metal and concrete surfaces. Their main advantage is corrosion protection and sufficient strong adhesion.

Based on the above classification, before choosing a primer for walls, it is necessary to determine the material of the surface to be primed and only then purchase the mixture.

Tip: when choosing a primer, pay attention to the manufacturer, price and specifications. The deeper the level of soil penetration into the base, the better it is for any purpose.

All about acrylic primer

The most common primer you can choose in different occasions- It's acrylic. It is versatile and makes the final finish high quality and durable. In turn, the types of acrylic primers also have their own classification and, depending on the conditions of use and the purpose of the primer, are divided into:

1. Versatile: Used on all surfaces and in all conditions. This primer is equally well suited for both interior and exterior finishing work. If you don’t know how to choose a primer for wallpaper, what to use for subsequent tiling or just painting, take a universal one. The solution of this mixture is slightly cloudy, almost colorless. A special place in a wide range of universal acrylic primers is occupied by a very popular primer paint today. Its use helps to simultaneously solve several problems: securely fasten surfaces, get rid of the possible appearance of mold and fungal bacteria, apply a layer of paint. Compound white color and the surface is not only primed, but also painted.

Tip: You can buy primer paint at any store. You can achieve the desired color by adding a dye to the soil. For example, after priming, the wall is planned to be painted in Blue colour. Add blue dye and the first coat of paint is ready.

2. Types of deep penetration primers have all the characteristic qualities of acrylic primers. However, primers of this type penetrate much deeper into the surface to be treated, smooth it, thereby adhering the base more strongly.

The absorption length reaches 1 cm. In the question of which deep penetration primer to choose or the usual universal primer, the first group should be given priority. The smoothing effect makes the surface perfectly even, as small particles, sand and dust stick together. This great option how to prime walls for wallpaper, plaster and even tiles.

3. Adhesive: there is a quartz impurity in the composition, which makes the surface a little rough, which, in turn, glues heavy finishing materials much stronger. This is a good way out when you don’t know how to prime the walls before plastering.

Primer application methods: when and how to do it

The method of applying a primer is no fundamentally different from the methods of applying other finishing materials. The surface is cleaned, cleaned, sanded and degreased if necessary. The question of how many times you need to prime the walls or ceiling requires an individual approach, but at least twice.

For application, tools such as:

1. roller.
2. Brush.
3. Pulverizer.

primer roller; brush;

In each case, the tool is selected individually. For example, apply a primer to brick surface better brush yu, but on a flat ceiling or drywall - with a roller. The sprayer is used less frequently, since it is not easy to wash the whole room after it.

Ceiling primer

Starting the repair of the ceiling on your own, you need to study the information on how to properly prime the ceiling. Indeed, despite the seeming simplicity of work, there are certain rules:

1. Having determined how to prime the ceiling, try to do it evenly. Wrong distribution, after painting will be immediately visible. The area where the primer is applied thicker will be darker than the entire surface.
2. Before priming the ceiling before painting, choose the direction of application of the bonding material. With one layer of primer, this is done along the room, perpendicular to the wall with a window. With a two-layer application, the first layer runs parallel to the wall with a window, the second - perpendicular to it.

Wall primer

In any case, it is necessary to prime the walls. Another question is the better to prime the walls, but more on that later. Before priming, the surface requires mandatory preparation: it is necessary to remove the old coating, smooth out irregularities, putty cracks, remove dust and dirt.

At work, you should adhere to technology, and not do everything on hastily. The first coat of primer must be completely dry and only then can a second coat be applied. It must be distributed evenly. Special attention it is worth focusing on the moment when you need to prime the walls under heavy wallpaper. In such cases, it cannot be used as a primer. wallpaper glue(as many people suggest).

Of course, one can argue why it is necessary to prime the walls if they will be sealed anyway? First of all, the wallpaper will hold on tighter and won't bubble when pasted. And in the future, no dirty tricks in the form of mold or fungus will appear on such walls.

How and what primed the walls for painting

Priming the walls is mandatory, and to the question of how to prime the walls before painting, we can safely say that it is a universal primer. She has everything necessary properties and suitable for different situations.

Very often you have to decide whether to prime before painting? Some think not: the primer mixture, when dried, leaves stripes that stand out clearly after painting. And dust and dirt can be removed with a vacuum cleaner. Others, on the contrary, argue that it is necessary to do this. Here you will have to decide on your own. If you want a practical repair - prime it, if you want to save money - don't prime it.

Often the walls are made of drywall, as it is affordable and practical material. Usually it is perfectly even and, accordingly, many are interested in whether drywall should be primed? Yes, definitely, because the priming process not only levels the walls, but also serves as an excellent factor in the adhesion of the base to the finish.

Used in this case, again universal primer, doing the work in the following sequence:

Only after complete drying, proceed to painting the surface.

Tip: when working with a primer, the temperature in the room should be within 5-20 degrees Celsius, air humidity up to 75% and no drafts.

How and with what the walls are primed for plaster

Plaster used on brick, concrete or foam concrete surfaces. They, as a rule, have high friability and absorbency, and the question of whether it is necessary to prime before plastering is beyond doubt. In these cases, a deep penetration primer is chosen. It not only perfectly adheres, but also has antiseptic properties.

It is necessary to prime before plastering in several layers. It is better to use a brush or roller. Each layer dries for about an hour and at this time it is necessary to protect the walls from getting dust and dirt on them. The temperature indicators of this type of primer are the same as those of the universal primer. The main thing is to carefully read the instructions and follow them.

Exactly the same requirements apply when the question arises whether it is necessary to prime before puttying. Everything is the same, even more, because not a single finishing material can hold on to a clean layer of putty.

Thus, summing up all of the above, the most important thing should be noted: surfaces must be primed, this must be done in accordance with the rules, choosing which primer to prime the ceiling or walls.

How to choose the right primer for walls and ceilings, application methods

This article discusses the question of what types of primers exist, what is their purpose and according to what criteria to choose.

The main purpose of the substance

The primer is a universal material, characterized by durability and anti-corrosion, designed for the preparation various surfaces for further processing.

Why is it important to choose the right option

The topical issue of the use of antifungal treatment is for external walls that are under the influence of precipitation.

Isolating for color matching

Such a substance makes it possible to align colors final painting. In addition, during operation it will allow to maintain the brightness and saturation of the applied color for a longer time. It is applied both to internal, and to the external surfaces which are exposed to coloring or plastering.

Universal for plastering and painting

A general purpose deep penetrating primer for indoor and outdoor use and where a strong bonding effect is expected. The universal option is used for walls before painting or plastering, as well as wallpapering. Additionally, it can be used for processing facades and floors.

Selection options: how to choose the best option

The choice of a quality and appropriate primer for a particular case is an extremely important issue.

Priming not only makes it possible to significantly improve the surface to be treated, but also to make its subsequent processing possible.

Compound

Types of primers, depending on the characteristics of the composition, are divided into the following types:

• acrylic or universal;
• alkyd;
• glyphthalic;
• perchlorovinyl;
• polyvinyl acetate;
• phenolic;
• polystyrene;
• aluminum;
• epoxy;
• shellac;
• mineral.

Manufacturer

Those who do not want to risk the quality of repairs can immediately discard options for purchasing products from local or little-known manufacturers. Thus, it is recommended to use products only from trusted manufacturers:

• Ceresit;
• Knauf;
• Tikkurila;
• caparol.

Among the domestic ones, the company "Prospectors" can be distinguished.

White or red

The choice of a substance by color is carried out, first of all, depending on which coating will follow in the subsequent stages. However, the white primer is considered quite versatile and is used in most cases. Experienced craftsmen, also skillfully change the tone of the primer to match color scheme paint, wallpaper or other type of finish.

How to choose for the bathroom: which one is best to choose?

Specifically, the primer puts forward the most stringent requirements for the bathroom. This is due to the fact that it should cover absolutely all surfaces of the room, in addition to walls, equally, but also by the fact that the coating is constantly exposed to moisture, microorganisms and chemical substances. Thus, when choosing a primer for the bathroom, you should make sure that it meets a number of requirements:

• Moisture resistance.
• Antifungal.
• Deep penetrating and firming.
• Moisture repellent.

Selection options, depending on the type of surface

An important factor in the choice can also be the type of surface itself, on which the primer will be applied.

Concrete

Betonokontakt or primer for concrete is designed to provide sufficient adhesion to concrete. This is important for the subsequent application of putty or plaster on concrete, and other surfaces that do not absorb moisture.

Brick

There is an opinion that it is possible to apply plaster on a brick wall or paint without preliminary priming, since high-quality adhesion will be ensured. However, priming the brick base is recommended, since not all building mixtures include primer additives in the composition, which can lead to accelerated cracking and destruction of the entire layer.

Tree

It is also necessary for a tree, since it often acts as an antiseptic, which allows you to protect wood from all kinds of destructive influences. This is most relevant for wooden surfaces located outdoors.

Gypsum

Gypsum putty or gypsum coating is a surface characterized by increased absorbency, which requires the use of a specialized primer.

Best manufacturers: TOP rating, who is better

Those who are wondering which primer and its manufacturers are better can pay attention to the following top brands:

• Prospectors.
• Ceresit.
• Optimist.
• Bolars.
• Tex.
• Knauf.
• Lacra.
• LNPP.
• GLIMS.

This article discusses the issue related to primers, their features, varieties and types. Various categories of products, their manufacturers and selection criteria for purchase were presented.

Useful video

IN modern construction concrete is the most common material. Thanks to innovative technologies, Various types concrete, which are suitable for both outdoor and indoor use. In this case, the surfaces need additional processing. For this, deep penetration primers for concrete are used, which are designed to perform many functions.

When carrying out any type of repair work, priming is an obligatory step, which cannot be dispensed with. Which primer is suitable is decided in each case, taking into account the characteristics of the surface to be treated.

Features of concrete

Today, concrete is a universal building material, the popularity of which is very high. Thanks to the characteristics of the material and the technology of erecting objects, it is possible to implement a wide variety of bold ideas and design tricks.

The main feature of concrete is its affordable cost, which is low compared to others. building materials. It should be noted that concrete is safe from an environmental point of view.

The scope of concrete is quite wide. With its help, it is possible not only to increase the level of mechanization, but also to establish automation of technological processes. And when using a concrete primer for outdoor work, you can create any architectural and building style.

The need for a primer

Everyone who has ever carried out repairs in their apartment knows very well that before the walls are puttied, painted, wallpapered, they need to be covered with a primer layer (or maybe not one). The same must be done before laying the flooring. But not everyone will come up with the question why this is done.

The main task assigned to the primer is to increase the adhesion of the concrete surface with subsequent finishing materials. In addition, the mixtures provide protection against the harmful effects of a number of external factors.

The material in the already frozen state is quite durable. However, if you do not use additional tools such as a primer to strengthen the concrete, it may collapse. This may be due to mechanical reasons. Concrete is also affected by natural external factors.

Functional purpose

As you know, concrete is a material with high density and hardness, but at the same time it contains micropores. The porous structure has both its advantages and disadvantages. In particular, if the concrete surface is left as it is, then its pronounced absorbency leads to overestimated costs of paint and varnish products.

The primer with the effect of deep penetration is a special composition that enters the micropores. This allows you to strengthen the concrete from the inside, and at the same time increase the adhesive properties. As a rule, this is achieved through acrylic polymers, which are rich in some types of deep penetration primer for concrete. When they are used, along with the strengthening effect, the absorbency of the building material is reduced.

Priming mixtures are used for exterior or interior decoration. After surface treatment, other types of finishes can be applied:

putty;

tiling;

paint and varnish products;

plaster (including decorative);

wallpaper (including liquid).

At the same time, the primer makes it possible to apply subsequent Decoration Materials even layer. Based on this, it becomes clear that the application of such compositions is a necessary and important process.

Product range

Depending on the composition of the primer are divided into several types:

polystyrene;

acrylic;

polyvinyl acetate;

epoxy;

alkyd.

Polystyrene concrete primer for outdoor (or indoor) use in everyday life is rarely used, since it is made with the addition of toxic solvents. Therefore, its scope is limited mainly exterior trim facades or industrial premises, preferably open. Some specific types of paints require a polystyrene-based primer. In addition, such mixtures are applied to the plastered surface before laying the tiles.

Acrylic mixtures are widely used. And all due to the fact that they do not have a pungent odor, they are ideally combined with almost any type of finishing material and have excellent absorbency. After applying the primer, you can proceed to further finishing after 3-4 hours. Due to the environmental friendliness of the material, the concrete primer for internal works can be applied to the surface of any premises, including children's rooms and hospital wards. Only due to the rapid absorption and drying of acrylic compounds is not recommended for facades.

Polyvinyl acetate primer is ideal for applications where repairs need to be carried out quickly. After application to the surface, it dries within 30-40 minutes. Only before finishing it is necessary to carry out processing with PVA glue in order to improve adhesion. After that, you can start wallpapering or painting.

Epoxy primer is made from resin. It is often used when applying polyurethane flooring. After applying the composition, the wear-resistant properties of the material are significantly increased.

Solving the burning question of which deep penetration primer is best for concrete, you can take a closer look at alkyd mixtures. They are also popular in modern construction and are most often applied to the surface before painting work. Penetrating into the porous structure of concrete, the composition provides reliable protection material from moisture. Complete drying takes from 12 to 15 hours.

Features of choice

To do right choice primer mixture, it is necessary to clearly understand for what purposes it will serve - for outdoor work or it will be interior decoration. For processing external surfaces, it is worth purchasing a special facade composition which takes a long time to dry. IN outdoor conditions this is an important advantage. For interior decoration, any available type of primer is suitable.

Another important point is the cost. Here it is better not to be stingy, but to purchase expensive, but reliable products, than later to "reap the benefits" from a product of dubious quality.

Fortunately, a good deep penetration primer is not always expensive, and you can find inexpensive option. In any case, it is better to trust a well-known and reliable manufacturer.

The construction market can be flooded with fakes that exist in almost any field of activity, it is necessary, first of all, to pay attention to the packaging, which always has the appropriate protection (holographic labels, stickers, etc.), which only the manufacturer has.

On guard of health

When buying a primer before a major repair, you should choose the one that has antiseptic properties. And it does not matter what type it is, and for what types of work (exterior or interior decoration). This eliminates the risk of fungus or mold on concrete surfaces.

This is especially true when there are small children in the family. And if for parents the price of a deep penetration primer does not matter, then when planning repairs in a children's room, you simply cannot do without this finishing material. After all, the fungus releases its toxins into the air. As a result, in such a room you can not only catch a runny nose or allergies, but also more serious diseases. And children, by virtue of the body that has not yet grown stronger, are the first to suffer.

Application features

Before applying the primer, you need to carefully prepare the surface. For this old finish removed as completely as possible. If there are large cracks, they must be repaired. Liquid primers are usually already ready for use, dry mixes must first be diluted with water. Some types of primer need constant and thorough mixing.

It is convenient to apply the composition with a roller, as it covers a large area. In difficult areas, it is better to go with a brush. At large volumes works, you can use the spray gun. At the same time, it is better to add more liquids in the amount of 5% of the total volume to deep penetration primers for concrete. This is done so that the mixture does not get stuck in the hoses and nozzle. Manufacturers themselves give such advice.

During the application of the composition, it must be ensured that it lays down in an even layer. After that, be sure to let the primer dry completely. The time is indicated on the package, but you can guess by the shade. If the base is weak and crumbles, the whole process must be repeated.

As many experts advise, it is better to work with a primer at a positive temperature from 5 to 25 °. As for humidity, try to keep the level no more than 65%. Otherwise, during surface treatment, the mixture will begin to foam. Polyurethane compounds are an exception.

If concrete base dense, then, according to the advice of many experts, you can use a mixture of concrete contact. Its composition includes quartz sand fine fraction, due to which finishing materials adhere better to a smooth surface. The composition is suitable for both outdoor and indoor use.

When applying a deep penetration primer, its consumption will depend on the surface. As practice shows, for 1 sq. m will need 80-120 grams.

During processing, safety measures must be observed. Wear rubber gloves and make sure that the primer does not get into your eyes. If this cannot be avoided, immediately rinse them in warm water. To avoid such a case, it is better to work with glasses.

Issue price

As for the cost, you can find different prices on the market. Polyurethane primers occupy a more expensive niche, starting from 4,000 rubles. Acrylic blends are more readily available. For example, the brand "Optimist g101" is sold at a price of 300 rubles per 10 liters. The cost of KnaufTiefengrund and Ceresit CT 17 is just over 600 rubles for the same volume. The primer under the brand name "Prospectors" is sold in the region from 350 to 500 rubles for the same 10 liters.

Repair work will be inexpensive if you initially choose the right deep penetration primer for concrete. Such compositions not only increase the life of the surface, but also make subsequent finishing cheaper.

A deep action primer designed specifically to improve the adhesion of building materials. It is able to increase adhesion and reduce the consumption of finishing materials.

Primer is required for porous and dirty surfaces, soiled mortars. It prevents crumbling of plaster, whitewash and other materials.

The composition and principle of action of the primer

A primer is necessary for porous and dirty surfaces stained with mortars.

The main components of a deep penetration primer are:

• Water.
• Acrylic resins for bonding.
• Polymer additives that improve surface finish and increase penetration depth.

Additionally, you can add:

• Antiseptic.
• Latex - increased adhesion.
• Silicone - water-repellent properties.

Primer consumption varies from 100 to 250 gr per 1 m2. Exact value depends on the ability of the substrate to absorb the soil.

The average drying time is from 1 to 3 hours, the temperature is about +20° C and the humidity is 70%.

The functionality of the penetrating primer is provided by an aqueous dispersion of resins. When applied, the substances penetrate deeply into the treated structure. Polymers enhance the effect. After the water evaporates, the acrylic resins stick together and form threads that penetrate the surface and lead deep into the base.

Deep penetration primer comparison

Primer "Optimist" is suitable for indoor and outdoor use. With its help, you can dilute water-dispersion paints. Penetration depth - from 1 to 5 mm. Advantages:

• Prevents the appearance of plaque and fungus.
• High penetrating power.

Ceresit ST 17 - for processing all types of absorbent surfaces.

Ceresit ST 17 - for processing all types of absorbent surfaces. Depth - from 3 to 5 mm, depending on the porosity of the treated substrate. Material Features:

• Strengthening the base.
• Use on heated screeds (you can read about self-leveling floors).
• high penetration composition.
• Environmental friendliness.
• Does not reduce the vapor permeability of the surface.

Advantages:

• Settlement of weak bases.
• Increasing adhesion.
• Allows the surface to breathe.

Lakra - Russian manufacturer paintwork materials. Deep penetrating primer has a strengthening ability and reduces paint consumption. Penetration depth up to 5 mm.

Eunice - for fixing and hardening old surfaces. Particularly suitable for floor treatment before applying leveling.

Eunice - for fixing and hardening old surfaces. Particularly suitable for floor treatment before applying leveling. Peculiarities:

• Improved finish durability.
• Increased bond strength.

Penetration depth - up to 7 mm.

Bolars is a Russian product for highly absorbent surfaces. The primer is not used for the base of surfaces that do not absorb moisture. Depth - up to 3 mm.

Lakra is a Russian manufacturer of paints and varnishes. Deep penetrating primer has a strengthening ability and reduces paint consumption.

Axton - primer with penetration up to 3 mm. It is applied to preparation of a surface for and for further. Minus - weak adhesion.The shelf life of almost all "deep" primers is 12 months.

Conclusion

Choice which better primer deep penetration, depends on the surface to be treated and on what kind of finish will be applied in the future.

When using the material for interior work, a primer based on a dispersion of acrylic polymers is suitable: Ceresit ST 17, KNAUF Tiefengrund. The raw material is suitable for almost any surface, it is especially effective to use it before applying plaster and fixing tiles.

"Eunice" is indispensable to use in a room with high humidity, as it contains an antiseptic.

For outdoor work, a primer is required, which contains latex and silicone to prevent moisture from entering the structure. For these purposes, "Optimist" and "Lacra" are suitable.

Virtually any type of deep action primer used for painting when pasting the surface with heavy wallpaper (non-woven), tiles or putty.

Before purchasing a deep action primer, you should carefully study the range of brands offered, study product certificates, all technical specifications, and pricing policy.

All the information is present on the construction forums, read the reviews. In the social networks, you can download a certificate of conformity, or you can make a deep penetration primer with your own hands. You can buy any primer in ordinary hardware stores at an affordable price.

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