Adhesive primer: technical characteristics, properties, application

The modern market of building materialsis constantly replenished with new compounds. They are characterized by improved characteristics. This allows you to conduct construction and repair work faster. The end result with the use of innovative technologies is of high quality. One of the important tools used in finishing works is the adhesive primer.

The category of funds submitted includedseveral different compositions. To choose the appropriate option for construction and repair work, you need to consider the technical characteristics, features of each type of primer.

general characteristics

Beginning of repair in the apartment is associated with the emergence of a mass of questions. What material for finishing works will be required in a particular case, many private property owners do not know. Therefore, the advice of experienced repairmen will help in resolving this issue.

Adhesion is the ability of the base to be strongmating with the finish. In this case, the layer applied to the surface does not exfoliate. He will be held for a long time on the ground. Some materials need to increase the level of adhesion. In this case, a special primer is used.

There are many similarcompositions. They are able to increase the adhesion of the surface to a greater or lesser extent. When choosing, it is important to take into account the characteristics of the base. There are rough and smooth materials. When treated, the primer should not only have adhesive properties. A number of additional effects are present in similar formulations.

Rugged surfaces

Properties of adhesion primer may vary significantly depending on thetype composition. All surfaces on which the materials are applied are conventionally divided into two groups. These are rough and smooth bases. When choosing a primer, it is important to consider the type of surface on which it will be applied.

All adhesion primers that are used forrough surfaces, differ in a number of characteristics. They have a high penetrating power. Even the dusty surfaces are stitched together and strengthened. The initial characteristics of the base in this case are noticeably improved.

The pores of the surfaces are closed. The consumption of finishing materials in this case is significantly reduced. Paint, glue, plaster are absorbed evenly. If a special primer is present, the primer can prevent development of fungi and mold on the surfaces.

Smooth surfaces

It should be noted that concrete primer can significantly differ from similarmeans for plastic. There is a large list of surfaces that do not have pores, do not have a high absorbency. For them, the above primer is not suitable.

Smooth surfaces include plastic, glass,metal, paint and other similar materials. It is for them to use compounds that are called primers. They are highly adhesive. Such compounds make the surface rough. Finishing in this case can be fixed on the base.

One of the most popular materials thatis applied in this case, is "Concrete contact". It produces a lot of large companies. The composition of such primers is significantly different from those intended for rough surfaces.

Composition

To understand, the adhesive primer differs from concretecontact, what material to buy for differentsurfaces, it is necessary to consider their composition. The products are manufactured on the basis of polymers. They add quartz sand of a certain fraction. The smaller it is, the thinner will be the layer of frozen film from the primer on the surface.

For compositions intended for smoothsurfaces, characterized by the presence of more adhesives. If the sand fraction is large, the surface will be more rough. Therefore, it is important to consider what type of finish will be applied subsequently.

In addition to the components listed above,the primer may include additional components. They will give the composition of water repellent, antibacterial, anticorrosive qualities. It should be noted that, regardless of the variety, all soils are vapor-permeable. This is a positive characteristic of the material.

Appointment

Beginning of repair in the apartment is accompanied by the purchase of the necessary materials. It should be known in advance, in which cases without a primer can not do. First of all, it is used for cladding. Before installing tiles, laminate, liquid floors or linoleum primer is used.

The presented composition should be applied tosurface before painting. This significantly extends the life of the finish. For latex, acrylic, water-emulsion, oil and other varieties of paints a certain composition is selected.

Another area of ​​primer application isplaster. Application of starting and finishing compounds is impossible without an adhesive. This becomes especially important when the layer of plaster is from 3 cm thick. In this case, the finish does not slip, does not collapse.

Primer action

Priming compositions can be conditionally divided into two groups. Strengthening materials belong to the first category. The second group included primer penetrating adhesive.

Strengthening formulations differ significantlyincreasing the adhesion of the finish to the base. The dispersion filler in this primer is much larger. This allows maximum adhesion for smooth surfaces. If it is necessary to create a finishing layer on a smooth material, in which there are no pores, it is the strengthening compositions that are used. They increase the strength of the surface on which they were applied.

Primers of deep penetration are used forporous materials. They contain a much smaller amount of dispersion particles. Such compositions penetrate into the surfaces to a depth of 10 cm. Their adhesion characteristics will be much less.

Composition

There are several types of adhesion primers that differ in composition. There are 4 main categories of funds. The first group includes acrylic adhesion primer. These are environmentally friendly compounds. They do not emit a pungent odor. This is the most versatile variety of soil.

Alkyd varieties are used for internal processing. They are made on the basis of organic solvents. Such formulations have a sharp odor. They are used for non-absorbent surfaces.

Glyftal primers are applied to metal, wooden surfaces. They dry out a long time. Also these formulations should be used only for dry rooms.

Perchlorovinyl primers are used fora large range of surfaces. It's a toxic compound. It is used exclusively for outdoor work. The ground dries quickly. An hour later, you can proceed with the subsequent finish.

«Concrete contact»

Choosing concrete primer and other smooth surfaces, you should givepreference for such a variety as "Concrete contact". The presented remedy was first produced in Germany. It was first introduced to the market by Knauf. Subsequently, the presented composition began to produce other world brands.

This universal tool, which can significantly improve the adhesion of the finish to the surface. It is used not only for concrete, but also for glass, metal, tiles and even painted surfaces.

If the base is low in abilityabsorb moisture, should prefer "concrete contact". Today, besides the "Knauf" primer, the compositions of the company "Ceresite" and "Starateli" are very popular among this type. Their price varies considerably. It can be, depending on the manufacturer, from 200 to 500 rubles. for 1 liter.

Acrylic primer

If you plan to create an adhesive layer forabsorbent surfaces, primers of deep penetration are used. They are made on a water basis. This is environmentally friendly acrylic compounds. The most known and qualitative in this area are primer adhesion "Knauf" "Ceresite".

Presented compounds are treated not onlyporous concrete, but also plaster before the subsequent finishing, sheets of gypsum board and other similar surfaces. In some cases, several layers of the tool will need to be applied. If you plan to handle wood, the primer should include antiseptic and resinous stain-smelling pigments.

Acrylic primer can be used in anypremises. It is highly environmentally friendly. Due to the absence of a pungent smell, this variety can be used even when decorating a bedroom or a children's room.

Alkyd primer

One of the claimed primers arealkyd compounds. This variety is used in the process of applying paint to the prepared surfaces. It is also used in the case when the base has already been applied to the old paint. The agent is characterized by rapid drying.

Great demand in the presented category adhesive primer Otex. It is produced by the world famous company Tikkurila. This primer is used before painting the surfaces of galvanized steel, aluminum, as well as plastic, fiberglass and ceramic tiles.

The presented composition is characterized by a mattestructure. It has a white color. However, if necessary, the composition is tinted with special additives. Can be used as an intermediate layer before painting. The lower old layer in this case will not affect the shade of the finish finish.

Consumption

Considering technical characteristics of the adhesion primer, should pay attention to its consumption. This indicator depends on a number of factors. First of all, the consumption depends on the structure of the surface on which the product is applied. The more porous, the more primers are required. However, after using it, you can save on the number of subsequent finishes.

The fraction of sand contributed by thein the basis. If it is shallow, the film layer from the primer will be thin. In this case, less material for surface treatment is required. A large fraction leads to an increase in the thickness of the layer, the consumption of the primer.

To determine how much moneyyou need to get acquainted with the manufacturer's instructions. For thin-layer primers, the consumption can be at least 20 g / m². The average value of this indicator is 150-200 g / m². If necessary, apply the product in two layers. In this case, the consumption of the primer increases to 500-550 g / m².

Features of application

To adhesive primer contributed to improving the quality of finishingworks, it must be properly applied. All requirements are stated by the manufacturer in the manual. In some cases, the surface will need to be cleaned, remove traces of dirt and grease.

Then apply the first coat of primer. To do this, apply a brush or roller. Professional installation organizations can apply the method of spraying the composition over the surface. In this case, processing is carried out in a short time, and the consumption of materials is significantly reduced.

The layer should dry thoroughly. In some cases, it will be necessary to apply the primer to the surface again. Many compositions after drying leave a film of white or pink. If individual sections were not processed on the wall, it will be visible. In these places it will be necessary to re-apply the composition.

Recommendations of specialists

Experienced builders recommend careful consideration of the choice adhesive primer. In this case, it is important to take into account the features of the surface to be treated, the subsequent finishing materials, as well as the environmental conditions.

Do not apply the product to the surfaceat low temperatures. The treatment is carried out at an average moisture level. The ambient temperature should be + 5 ° C or higher. Otherwise, the composition is significantly deteriorated.

Acquire products for surface treatmentit is necessary only in specialized stores. Do not buy cheap, little-known compounds. They are not able to provide the required strength of adhesion of different materials.

Having considered what is adhesion primer, its features and varieties, you can choose the best option, corresponding to the conditions of finishing works.