Primer Knauf Betokontakt: characteristics and benefits of application

Primer Knauf Betokontakt is used in the work with interior and exterior decoration. Its composition allows to apply the product on any bases having various indicators of density and smoothness of the surface. The main components are polymers and quartz chips. They increase the tenacity of the coated surface, waterproofing and fire resistance of the walls.

The main tasks of the Knauf Betokontakt primer are to adhere the plaster to smooth surfaces and to create a reliable, durable coating. It is functional, simplifies many stages of work related to the preparation of surfaces and the dismantling of the previous coating.

If earlier it was necessary to use several different compositions, now only one Knauf Betokontakt soil is sufficient.

Usually this primer is used in work with building materials that have the following characteristics:

• high density (concrete);
• moisture resistance;
• smoothness (glass, ceramics).

But experts note that concrete contact has the following properties:

• strengthening of weak friable bases (drywall);
• increase of adhesive properties;
• alkaline resistance;
• surface leveling;
• elimination of microcracks of the base;
• coupling with any material.

These qualities of the Knauf Betokontakt primer extend the range of its application. It is perfect for preparatory and rough work before applying plaster on the surface of concrete, cement, drywall, various metal structures. The soil fits snugly to the base and forms a rough to the touch film, which provides a high degree of fixation of the subsequent coating.

Manufacturers have created a universal composition, primer Knauf Betokontakt is used by experts in working with wood, metal parts, decorative elements made of polystyrene. The resistance of the soil to alkaline compositions makes it possible to use a plaster based on lime and gypsum.

Primer Knauf Betokontakt is a mixture of pink shades, completely ready to use. Available in containers of 5 kg and a bucket weighing 20 kg. The shelf life is 18 months from the date of manufacture, open product is stored for about 6 months in a tightly closed container.

The product has pronounced adhesion properties. applied on surfaces of complex nature - weakly absorbent, smooth, dense. It is used to strengthen concrete foundations, drywall plates, in preparing metal structures for further work (puttying), during the laying of ceramic tiles, fixing parts of moldings from polystyrene, gypsum, polyurethane. Betonokontakt simplifies construction work and reduces the amount of additional consumables due to its reinforcing properties. Primer Knauf Betokontakt aligns the surface, eliminates minor base defects, microcracks.

Work with the soil of the brand Knauf Betokontakt requires compliance with a certain temperature regime. It cannot be used at a temperature of –5 degrees Celsius and below, in the cold, and also when the thermometer indicator is above + 26-27 degrees Celsius.

Primer Knauf Betokontakt is of two types - with mineral particles of 0.6 mm and 0.3 mm. The first type is used in roughing and coating of external surfaces, the second is used for more delicate work and before puttying.

When calculating the consumption of the necessary material, there are several factors to consider:

• degree of moisture absorption of the base;
• surface type;
• number of layers;
• method of application.

With a smooth surface, such as paintwork and ceramic, the consumption of soil will be significantly lower than when applied to a concrete slab. The minimum consumption is approximately 200 grams.on 1m ², maximum - 350 gr.

Manufacturers produce a mixture in a state that is completely ready for work.. Experts allow the dilution of the primer Knauf Betokontakt with a small amount of water for the best mechanical application.

When applied manually, the maximum amount of water for dilution is 50 ml per liter of primer. In the method of mechanical spraying, a 2: 1 dilution is used - two parts of the soil are one part of water.

Before starting work, the mixture must be thoroughly stirred so that all microparticles are distributed evenly over the entire area. When processing the surface, you can use any tools - brush, roller, mechanical sprinkler. Pink color will help to see the smeared areas.

Specialists have long and widely used products brand Knauf, primer Knauf Betokontakt is no exception.Its unique ability to glue materials of different density and smoothness allow it to be used in different types of work.

The main properties of the primer Knauf Betokontakt:

• durability;
• waterproofing;
• quick drying;
• alkali resistance;

• uniformity of application;

• resistance to temperature extremes;

• resistance to mold and fungi;

• high fire resistance;
• environmental friendliness.

Manufacturers said that the life of concrete contact will be 80 years. After that damage to the surface and its complete destruction may occur. At the moment, these data are not confirmed, since the product entered the market not so long ago.

On the treated surfaces, a thin, durable waterproof film is formed that enhances waterproofing performance. This property distinguishes concrete contact from other soil mixtures.

The primer allows you to maintain an optimal rate of air exchange between the room and the street,vapor permeability is not reduced. It can be applied on vertical, horizontal surfaces, floors and ceilings. The ability to seal porous bases and microcracks reduces the consumption of materials, prevents the splitting of plaster or cracking of other subsequent coatings.

The temperature range from -40 to + 60 allows you to apply the solution for internal and external works. The composition is completely safe for humans and does not contain toxic substances. Acidity of the soil in the normal range - pH 7.5-8.5. The average consumption is 0.35 kg per 1 m².

Natural components that are part of the soil mixtures do not cause irritation, do not have an unpleasant smell, it can be used indoors, without fearing for your health. GOST meets Russian and international requirements.

Applying a primer Knauf Betokontakt does not require professional training, which allows it to be used at home. Surface treatment is allowed in two ways: classical, carried out with a brush, roller or spatula, and mechanized.

First, you must thoroughly clean the base of dust, dirt, foreign particles. Wherein it is not necessary to remove the old coating if it is well preserved, does not crack or crumble. Then the surface is degreased, inspected. Deep cracks and gaps are pre-cemented and left for 24 hours until completely dry. After this ground surface. It is worth noting that the soil penetrates into the layers of the concrete base a few centimeters, strengthening it.

Buyers give positive comments on Knauf Betokontakt soil mix, appreciate it its quality, convenience and simplicity in application, cost effectiveness and quick drying.

Knauf is a proven brand. This modern construction primer for construction work is popular with many professionals. Knauf Betokontakt guarantees quality and durability, it saves your money and time.

More details about the types of primers and subtleties of priming of various surfaces are described in the following video.