Primer for concrete for outdoor works: review, description, types and reviews. Primer for deep penetration for concrete

Before starting work related to the finish of the surfaces of buildings constructed of concrete, they need to be primed, for which different types of primers are used.

Primer for concrete and plaster: purpose

The main purpose of using a primer is to strengthen the foundation, as well as to protect it from various negative atmospheric influences. The cost of this material is low, despite the fact that it performs an important function.

Pros of using a primer

As positive sides of the primer material, according to user feedback, the following can be distinguished:

• The property of the surface being treated remains unchanged;
• The service life of the foundation is extended;
• During the repair, the foundation and finishing materials are fastened;
• The primer for concrete serves as an insulator, excluding the possibility of contacting unsuitable materials.

Recommendations : some types of primers can be used as a material that is suitable for the final stage when finishing surfaces.

Substrate preparation

The surface, in which concrete of appropriate quality was used, is characterized by a finely dispersed structure, which makes it ideal for smoothness (for example, slabs made of concrete slabs and panel houses). However, it should be noted that on such a basis, glue and putty just do not get caught, they are poorly laid.

Eventually:

• The wallpaper quickly begins to peel off;
• Putty exposed to peeling;
• Cracks appear on the plaster.

If the finishing is carried out by highly qualified specialists, then before the start of the repair work, they determine the characteristics of the surfaces.

If there is a large amount of damage in the previous finish, this means that the walls have not been subjected to the necessary treatment, preliminary preparatory work has not been carried out, which includes cleaning the surface and a primer for concrete.

Stages of surface cleaning and primer application

1. Before applying the primer to the substrate, it is recommended that you clean it properly with the original coating, where most likely unnecessary dust accumulated.

2. All existing defects (cracks, unevennesses) on the surface must be completely eliminated.

3. Further on the base should be put a primer of deep penetration for concrete, which will help to strengthen the damaged places.

4. After completion of the above steps, the substrate should be leveled.

Before painting the walls, they are also recommended. To do this, a deep penetration primer for concrete is also used.

Recommendations : to protect the surface from microorganisms that are capable of damaging, a primer that contains an antiseptic should be used. It is used in the treatment of external walls of buildings, as well as in rooms with a high level of moisture.

Application of primer

When applying this material, you must use a roller or brush.

In addition, do not forget about the recommendations for the expenditure of funds that are available on the package:

• Due to its properties, the surface is not able to absorb the amount of primer, more than the designated volume. Surplus material will simply dry, not bringing any benefit.
• If the primer is applied less than the required amount, then this will also not be of any use, since it will not penetrate into the basement, accordingly, it will not be able to strengthen it.

Recommendations : before applying the primer, you must complete the work on the base and walls.

Types of primer

The material is intended for the treatment of internal and external surfaces. Priming for concrete for outdoor work can equally well be used for indoor applications. However, due to the fact that components that are dangerous for the respiratory system are included in the composition, it is necessary to ventilate the rooms after use.

There are the following varieties:

• Primer for concrete reinforcing, with deep penetration.
• Textured, which includes fillers. They are used for subsequent work with surfaces (for example, acrylic primer for concrete).
• Isolating. Protect from the adverse effects of climatic conditions, chemicals, mechanical effects (they include silicone, polyurethane and epoxy primer for concrete).
• Primers containing antiseptics: protect from mold and fungus.

Depending on the type of surface, the primers are divided into:

• Primers designed for a smooth surface (they perform the function of protection from moisture, are used for painting or plastering).
• Primers designed for cellular concrete (characterized by good viscosity, they include silicate fillers designed to fill the pores). They are perfectly absorbed, but poorly strengthened concrete.

In the instructions on the packaging of the material, it is indicated for which surface the primer for concrete is intended - for outdoor work or for interior.

Advice of specialists

When selecting the soil:

1. It is necessary to find out what the composition is for (for preparing the surface for plastering or painting, for waterproofing).

2. You should know from which material the base is made (fresh concrete or old, dense or cellular). Proceeding from this and it is necessary to choose a primer with the appropriate characteristics.

3. It is necessary to calculate the consumption of the primer.

Recommendations : it must be remembered that the composition is not able to strengthen the concrete, because it should not be added to the solution.

The depth of maximum penetration is 70 mm, and a protective layer is created. This material, like a bumper, takes the whole impact on itself, performing the function of protecting the base.

The base, treated with a primer, will retain its properties much longer and better. But if this material is added to the solution, it will not become stronger from this without the use of additives specially designed for these purposes.

Recommendations : unreasonable use of soil in concrete can reduce strength characteristics.

In order to add concrete components to the concrete solution, which can enhance its strength, it is necessary to have a special construction or engineering education.

Conclusion

Priming surfaces made of concrete, they can be used for subsequent finishing works, and also helps to strengthen them, protects against fungus. Before acquiring the necessary material, it is necessary to find out the structure of the substrate, which will help to prepare it in the best way.

Primer for concrete, whose price is from 450 rubles, is a quality and environmentally friendly material without a specific smell. It is sold in various containers and has various packaging.