Repair is a responsible process. He requires the master of relevant knowledge and skills. In the process of finishing work, it is important to properly prepare the base for applying the final layer of material. For this, various adhesion enhancing agents are used. In this case, the finish fits snugly to the surface, firmly gripping it.
One of the sought-after repair tools is Concrete Contact. Technical characteristics and features of the primer presented will be discussed later.
general characteristics
Modern building materials are versatile. Their qualities are constantly being improved. Today it is possible to combine materials that previously could not be combined. For this, a special primer “Concrete contact” is used. Technical specifications (GOST 28196 governs the features of the presented funds) should be considered before application.
Concrete Contact covers the surface with a thin film. At the same time, it becomes possible to stick tiles to metal, glass to wood. The walls, ceiling are treated with a primer, and then subsequent finishing is carried out. The surface treated with the presented material becomes stronger.
The finish fits snugly on the prepared base. In this case, the layers do not crack, do not crumble. Finishing material will hold onto the surface firmly. Subsequent repairs will not be required for many more years. It is for this reason that the primer presented today is used everywhere. It is produced by leading companies that supply the market with high-quality building materials.
Composition
Today, the presented variety of primers produces many different brands. They differ slightly in technical characteristics. “Concrete contact” “Knauf” , “Ceresit”, “Prospectors” and other manufacturers are made on the basis of acrylic. This material enhances surface adhesion. In other words, the finish adheres better to the base.
Cement, sand and other fillers are added to the acrylic base. These components give the primer the appropriate qualities.
With a primer it is possible to process both porous and smooth surfaces. It is designed for concrete, metal, ceramic, wood, plastic, drywall surfaces. After processing, you can apply various plaster. Finishing can be made on a cement, lime, gypsum basis, as well as alabaster. Even on surfaces that do not absorb moisture at all, such plaster will hold firmly, not peel off.
Specifications
Concrete contact is distinguished by certain properties . Technical characteristics of Ceresit, Knauf, and other manufacturers may vary slightly. However, all of them are able to turn a smooth surface into a rough surface.
The drying time of the primer is 3 hours. In some cases, the surface will be ready for further processing after 2 hours. The primer has a high moisture resistance. A film forms on the surface. She does not pass moisture. Therefore, when using "Betonkontakt" when finishing the floor, you can not use waterproofing.
The service life of the surface impregnated with the primer is 80 years. The consumption of funds is from 0.2 to 0.4 kg / m². "Concrete contact" has a pronounced color. After processing the surface shows whether it is completely processed. When the product is absorbed, gaps will be clearly visible. In this case, the base is primed again.
Consumption
Considering the technical characteristics of the Concrete Contact soil, a few words should be said about the mixture flow rate. It depends on several parameters. For ease of use, primer packs are produced in buckets of 5-10 liters. There is also a container of 30 and 40 liters. Closed “Concrete Contact” is stored for 12 months.
The flow rate of the mixture depends on the porosity of the substrate. The more the surface absorbs the primer, the more it will be needed. A larger amount of the mixture will be required for surfaces made of brick, cellular concrete and other similar building materials. In this case, the consumption is 0.3-0.5 kg / m². Less will be required if applied to a smooth surface. For ceramic tiles, metal, glass, the average consumption is 0.15-0.2 kg / m².
Also, the amount of sand affects the amount of the product, which is added to the acrylic base. The finer the particles, the lower the application procedure. A thick layer of the product is obtained by treating the surface with a brush. If the primer is applied from a spray gun, the layer will be thin. Consumption in this case is reduced.
Benefits
The technical characteristics of the Betonocontact primer indicate the mass of advantages of this product. You can apply the composition on almost any basis. It is even applied to the old lining.
Concrete Contact can be used before applying putty or plaster. The film formed by the composition does not allow moisture and steam to pass through. This provides reliable surface protection. It becomes stronger, does not collapse for a long time.
Primer treatment is simple. Fast drying of the layer allows you to quickly continue subsequent repairs. After processing, mold and fungus do not appear on the surface.
Concrete Contact is an environmentally friendly material. It can be used inside any room, even in the bedroom and children's room.
Application features
The technical characteristics of Concrete Contact allow it to be used in various areas of repair work. The composition can be applied when arranging a rough screed floor or floors. Also, the primer is applied to the walls. After that they can be plastered, wallpaper glued. On the ceiling, the product is used before whitewashing.
The primer penetrates deep into the material. The presented tool is used for internal work. Repair work can be carried out at temperatures from 5 to 35 º. Also in the room should be normal humidity. Do not use the product at temperatures below 0 º.
After drying, the primer layer performs the functions assigned to it under certain conditions. Ambient temperature should not fall below -40 º and rise above +50 º. Thanks to the use of special additives, the product can withstand several freezing cycles.
Manufacturers
Each manufacturer gives its products certain technical characteristics. "Concrete contact" "Ceresit ST 19" , "Knauf", "Prospectors" differ in a number of indicators. These are the most popular primers in our country.
Knauf products contain quartz sand. It is sold in a 5 kg container. The presented primer treats concrete surfaces inside and outside the premises. The cost of the "Concrete Contact" is 600-800 rubles.
The company "Ceresite" also produces the presented variety of primer. It is sold in a capacity of 15 kg. The price of this tool is about 1200 rubles. The presented composition is practically not inferior in quality to the previous version of "Concrete Contact".
One of the best compositions of domestic production is the primer "Prospectors". It is sold in a 20 kg package. The cost of the presented product is about 1400 rubles. The quality of this primer is not inferior to foreign analogues.
Priming
Having considered the technical characteristics of "Concrete Contact" , it is necessary to delve into the features of its application to the surface. First, the foundation must be properly prepared. The surface should be cleaned of dust, dirt.
After preparation, you can begin to create a primer layer. This work is done with a brush, roller or spray gun. It is necessary to ensure that Betoncontact lies on the surface with a uniform layer. Further, the product should dry well. Features of the use of the product must be indicated in the manufacturer's instructions.
After 3 hours, you need to check whether the surface has dried. If the primer is ready for further work, plaster is applied to it. You can also stick wallpaper, apply a coat of paint. If the base treated with Betonkontakt remains in its previous state for more than 2 days, the procedure should be repeated.
Recommendations of specialists
Experts recommend purchasing a primer only in specialized stores. Before using the product, you need to evaluate its consistency. The mixture should not be lumps. Knowing the technology of applying a primer, even an unprofessional installer will be able to do the job well. In some cases (when the processing area is large) it is recommended to resort to the services of professional installers.
Having considered the features of "Concrete contact", the technical characteristics of the primer, you can correctly choose the composition and apply it when carrying out repairs