Types of reinforcement primers and the rating of the best brands, rules for their use

Primer Hardener helps strengthen loose substrates, helps reduce absorption of finishing materials, and improves adhesive bond. Properly selected composition prevents peeling of plaster and other paints and varnishes. It also provides protection against mold and mildew. To achieve the desired results, you must strictly follow the instructions for applying the substance. Surface preparation is essential.

Reinforcement primers: composition and properties of the material

A properly selected soil has the following properties:

• improves the adhesion characteristics of the surface;
• provides uniform application of decorative coating;
• reduces the absorption capacity of the surface and saves the consumption of the base material;
• makes the base more durable;
• provides an antiseptic effect - it helps prevent the spread and multiplication of bacterial microorganisms and fungi.

When choosing the composition of the reinforcing soil, it is necessary to take into account the properties and condition of the surfaces. The type of decorative coating is not insignificant.

The best known primer hardener is an acrylic blend. It is an aqueous dispersion mass that contains small fragments of artificial resins. It does not contain solvents or plasticizers. The substance has no tint, is not washed off and dries quickly.

Principle of operation and purpose

Primer mixes have been used relatively recently. For a long time, wallpaper paste, PVA or diluted stain were used as a base. Today, there are many varieties of primers that perform different tasks. Through the use of such funds, it is possible to achieve the following results:

• protect the surface from the influence of negative factors;
• increase the adhesion of the paint to the base;
• obtain insulating properties.

Soils differ in type and purpose. This affects the depth of their penetration into the base, its reinforcement and the quality of adhesion after applying the surface to the material. The use of primers reduces the cost of dyeing. This provides significant cost savings, makes the application of stain or glue more even, and protects the surface from mildew.

Reinforcement primers can be applied on different types of coatings. They help fill the porous structure of concrete surfaces, increasing their resistance to external factors. In addition, these substances increase the degree of adhesion with finishing materials.

Concrete has a high density and low absorbency.Therefore, applying paint without preliminary preparation will not bring any results.Such compositions will be the right choice when using thick wallpaper for interior decoration. Otherwise, not a single adhesive will hold the sheets to the concrete surface.

It is allowed to apply mixtures of primers on the following surfaces:

• plastered walls;
• plasterboard;
• brick;
• gas blocks;
• foam concrete.

Due to their characteristics, these primers can be safely considered universal. Reinforcement mixtures are excellent for application to surfaces in high humidity conditions. They are often used for bathrooms and kitchens. In such places, the walls are constantly in contact with water and high humidity, which often causes the formation of fungus and mold.

A primer containing antiseptic components helps protect surfaces against the development of pathogenic bacteria and fungi.

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Advantages and disadvantages of use in construction

Using a primer mixture with reinforcing properties has many advantages. The main advantages are:

• Reliable protection of walls from damage. They can appear in different situations - for example, when removing old wallpaper.
• Increase the moisture resistance of the walls. The primer composition provides reliable protection against the appearance of fungus, mold, increased humidity and other destructive factors.
• Scare away harmful insects and germs. This is due to the presence of antiseptic components in the composition.
• Increase the resistance of topcoats to external factors.Applying a primer helps them last much longer.
• Leveling of surfaces. Thanks to this, it is possible to achieve a more even distribution of building materials - paints, putty, plaster.
• Reduced material costs. Using a primer reduces the need for adhesives and colorants.
• Security. The floor has an environmentally friendly composition.
• High drying speed.
• Ease of application.
• Affordable price.

Land use should not be overlooked. Pasting wallpaper on concrete or old plaster may incur additional costs. Poor quality work will have to be redone.

Land use also has some disadvantages. The main disadvantages include:

• Risk of wallpaper peeling due to poor quality workmanship.
• Difficulty getting a thick composition in the top layer.
• Risk of uneven application of the composition if the consistency is too liquid. In this case, spots appear on the surface.

What are: varieties and recommendations for choosing

Wall primers are intended for the treatment of vertical surfaces inside and outside the room. They differ in properties, features of application, base, degree of protection against external factors.

Adhesive

This type of primer is a special solution, the main purpose of which is to improve the adhesion of the treated surface with the finishing material. In addition to improving the degree of adhesion, this primer solves the following problems:

• protect metal surfaces from corrosion;
• prevent the formation of mold and mildew;
• increase the strength of porous and cracked surfaces;
• reduce moisture absorption parameters.

Acrylic

This substance is an excellent choice for home use.The composition of the acrylic primer contains polymers that are safe and devoid of a specific smell. In addition, the composition is suitable for any type of surface and dries quickly after application.

Acrylic primers help solve the following tasks:

• hide small cracks and irregularities;
• increase the service life of finishing materials;
• reduce the cost of glue and dyes.

If it is too thick, the composition easily mixes with water. Another plus is the high drying speed.A few hours after applying the primer, you can proceed to wall decoration.

Antifungal

This tool is considered affordable and simple. It helps protect surfaces from the negative effects of dangerous microorganisms. It is necessary to apply such a primer at the final stage, just before finishing. The antifungal composition is recommended for external surfaces that are constantly exposed to moisture.

Deep penetration

In appearance, this soil is similar to milk, which has a neutral aroma. After application and drying, it leaves a stable film on the surface. Thanks to this, it is possible to strengthen and remove dust from the layer.

It is recommended that a deep penetration primer be applied to soft surfaces. This helps strengthen the walls and reduce dye consumption.

Such material can be used as the basis for heavy types of wallpaper.

Insulating

This substance helps to even out the shades of the final color. In addition, with its help it is possible to maintain the saturation and brightness of the applied color longer. An insulating primer can be used for interior and exterior surfaces that need to be coated or painted.

Mineral

This type of soil is used for the initial treatment of surfaces in order to level them. It is mineral based.Therefore, the material should be used for surfaces consisting of special mineral components. These include concrete, plaster, brick. Also, the composition can be applied to concrete blocks of expanded clay and gas silicate. The cement should act as a binder in such situations.

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Universal

This material is suitable for indoor and outdoor use. It is also required for places where a strong adhesion effect is required. A universal primer can be used for walls before applying paint or plaster. It is also used before wallpapering. In addition, the material can be used for processing flooring and facades.

Ranking of the best brands

Reinforcement primer is produced by many well-known brands.

bolar

This substance has a dull white or transparent hue. It is used to reinforce aerated concrete. It is also allowed to apply the material on cement-sand and cement-lime screeds. If the surface is intended to be painted, the primer reduces the consumption of paints and varnishes.

Knauf

It is one of the main European manufacturers. The most requested material is “Betonokontakt”. It is a substance that contains quartz sand.

The brand also offers the TIEFENGROUND primer. It is a fast drying agent that is used before filling, painting or tiling.

"Lakra"

This substance is distinguished by a polyurethane base and includes antiseptic components. With its help, it is possible to fill cracks and micropores, strengthen the base and increase the degree of adhesion. In addition, the compositions help protect the surface from the appearance of pathogenic bacteria, fungal spores and mold.Due to these characteristics, the primer can be used for bathrooms and toilets.

"LNPP"

The substance helps create a monochromatic protective coating that can be used to prepare walls before applying acrylic and water-based paints. The composition is used for concrete, plaster and brick walls. It is also allowed to apply it on fiberboard, plasterboard, asbestos-cement panels.

"Optimistic"

This brand offers products for the exterior and interior. The composition is produced in the form of a finely dispersed latex solution, which includes quartz sand, modifying components, antiseptic substances. The primer can be used for application on substrates exposed to a humid environment. With its help, it is possible to level the surface and increase the degree of adhesion.

"Prospectors"

The tool is distinguished by its ability to fill all cracks and pores. By adding quartz sand, the substance helps to increase the adhesion properties of the substrate and finishing materials. The primer can be used for both exterior and interior work. It is suitable for rooms with high and normal humidity.

After applying the substance, the walls can be putty and plaster. It is also allowed to lay tiles, paint the surface, glue wallpaper, create flooring. The solution will not work on low absorbency surfaces. In addition, it cannot be used on materials that come into contact with food or water.

"Texas"

This substance is versatile and penetrates porous surfaces to a depth of 6 millimeters. Due to its absorbency, the primer can be used to prepare facades and interior walls. It is suitable for rooms with high humidity.It is also allowed to use the substance before wallpapering and laying ceramic tiles.

"Ceresit"

This company has a rich history. Over a hundred years, it has accumulated extensive experience in the production of various building compounds. Primers are made on a water dispersion basis. In this case, the main components are synthetic resins. Thanks to this, the soil is perfectly absorbed. But at the same time it is protected from premature drying out.

Features of use

In order for the primer to give the desired results, it is important to use it correctly. In this case, great attention should be paid to the preparatory work.

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Surface preparation

Before using the primer mixture, the surface should be thoroughly cleaned. In this case, it is recommended to remove construction debris, dust, oil stains. If there are metal parts, they must be cleaned of rust.

Calculation of consumption and preparation of the working solution

The approximate consumption of potting soil is indicated by the manufacturer on the packaging. On average, 100-200 milliliters of the substance are needed per square meter. Consumption may increase depending on absorbency, substrate structure and number of treatments.

Some primers require prior preparation. To do this, they must be mixed with water or a solvent to obtain the desired texture. Usually it is worth keeping a ratio of 1: 1. However, the manufacturer sometimes indicates other ratios.

Application of a reinforcing primer coat

It is recommended to apply the primer with a roller or a wide brush. It is important to check that the layer is uniform.For large rooms, it is recommended to use a spray gun. This considerably reduces the duration of the work.

Since primers are very sensitive to low temperatures, it is recommended to prepare the base at + 5-30 degrees. Very porous coating and large gaps and cracks should be repaired and primed in several coats. In this case, each subsequent layer should be applied only after the previous one has completely dried.

Drying time

Drying times are usually indicated on the packaging. However, specific parameters are also influenced by the following factors:

• thickness of the applied layer;
• solvent composition - acrylic primers dry in 3-4 hours, and oil and contact primers require a day;
• surface condition - dry and porous substrates set faster, recently coated ones take longer;
• temperature and humidity - polymerization occurs fastest at positive temperatures and in dry air.

Water repellent reinforcing primers dry for 1-2 hours. This period is recommended for drying a layer. When applying the substance in several layers without complete drying of the previous ones, the time increases several times.

Precautions and safety measures

To prevent the primer from harming health, it is important to observe safety measures. In this case, it is recommended to use personal protective equipment - glasses, gloves, mask or respirator.

During the execution of the work, the room must be systematically ventilated. If the substance gets into your eyes, rinse them immediately with water. It is necessary to store the substance out of the reach of children.

Mistakes allowed and tips from the masters

Many beginner craftsmen make mistakes when applying primer:

• choose the wrong mixture;
• violating training technology;
• the composition is applied incorrectly.

In order for the primer to lay down evenly and correctly, it is recommended to follow the advice of experienced craftsmen:

• Choose a soil that matches the composition of the substrate.
• Consider the operating conditions of the coating.
• Thoroughly prepare the substrate for the application of the primer mixture.
• Observe the rules for applying the primer mixture. It is important to avoid puddles or drips.
• On large areas, the composition should be applied by roller or spray. Use a paintbrush to paint hard-to-reach areas.

Storage rules

It is necessary to store and transport the composition in a sealed container from the manufacturer. In this case, the temperature indicators should not be above +40 degrees. If the soil has frost-resistant properties, then it is allowed to store it at a temperature of -30 degrees. However, this period should not exceed 1 month. It is recommended to thaw the primer mixture naturally at room temperature. It is able to retain its properties for 2 years, subject to storage periods.

A primer hardener has a number of important functions. It helps to improve the surface structure, make it smoother and more resistant to external factors. In order for the substance to give the desired result, it is important to strictly follow the rules of its application. It is also worth following safety rules and using personal protective equipment.