Hydrophobizer for concrete. Which firm is better to buy a water repellent
Concrete - the material is strong, but badresistant to moisture. Water penetrates into the thickness of structural elements of buildings erected from it, through numerous pores. After its evaporation, white spots and stains form on their surface, which spoils the appearance of the structure. In addition, the material itself under the influence of moisture begins to deteriorate. In order to increase its water-repellent properties, it is necessary to use a hydrophobic agent for concrete.
Being applied to concrete, a hydrophobizerIt is absorbed by the pores and freezes from the inside on their walls. As a result, the capillary moisture, instead of going up these micro channels upward, is pushed out. It happens only with large water structures. Individual molecules pass through the pores freely. As a result, concrete acquires water-repellent properties and does not lose the ability to pass steam, that is, it remains "breathing".
Thus, water repellents significantlyincrease the service life of concrete structures, preventing corrosion processes, increase the strength of their surface layer and frost resistance. In addition, they prevent the appearance of "efflorescence" on the surface of concrete products, thereby preserving their attractive appearance.
A hydrophobic agent for concrete can be applied tothree different technologies. This means can be processed already ready-made construction or added to water in the manufacture of a concrete mixture. In the latter case, the maximum dosage indicated by the manufacturer should not be exceeded. This can adversely affect the quality of the finished concrete structure.
Injection hydrophobisers also exist. In this case, the agent is injected into the concrete with special tools.
The most popular speciesHydrophobizers at the moment are silicone coatings. It is very easy to apply them to the concrete surface. They are supplied in the form of impregnating liquid emulsions or concentrates that require dilution. For application, you can use any paint tools. Most often, concrete surfaces are sprayed with hydrophobisers using a roller. In remote places use a brush. The agent is applied to the surface until the pores stop absorbing it. The hydrophobizer dries out in about a day.
Do not apply silicone water repellents up tosurface staining. These agents greatly reduce the adhesive properties of materials. Therefore, walls, a balcony, a foundation, a blind or a border should first be painted, and then covered with a water-repellent agent.
Next, consider which is better water repellentbuy. Cheap funds from little-known companies can harm concrete structures. Some unscrupulous manufacturers make hydrophobisers based on anti-silicone not potassium, and sodium. Reacting with carbon dioxide, the latter forms a carbonate that is able to attach water molecules and "grow", destroying the surrounding material. Therefore, it is necessary to purchase products of only firms whose products have good reviews.
Produce means that increase moisture resistanceconcrete, many manufacturers. The most popular brands are "Aquasil", "Tiprom" and "Penta". These companies produce a good quality water repellent. The price of their products, moreover, is not too high.
Using the tool of this company allowsreduce water absorption of foam concrete and ordinary concrete by 10-15 times. At the same time the strength of the material increases by 30%. Issues the said hydrophobizator (reviews about it only positive) homonymous firm. The main advantages of this brand are:
- reduced alkalinity;
- increased explosion and fire safety;
- long service life (re-processing will need to be carried out no earlier than 10 years).
Supplied funds of this manufacturer in the form of concentrates, diluted with water at a ratio of 1:10 or 1:30. The consumption of water-repellent agents "Aquasil" is approximately 0.25-0.5 kg per m2(depending on the porosity of the concrete).
Use of this brand is possible both inquality omazochnyh, and voluminous materials. In the latter case, the concentrate is added to the water during the mixing of the concrete solution (in an amount not exceeding 0.5% of the weight of the cement). It costs a concentrated water repellent for concrete "Aquasil" about 300 rubles. per kilogram.
Means of the brand "Tiprom"
It is also a very reliable and durable water repellent. His service life is 10 years. All funds of the brand "Tiprom" are divided into three groups:
- with a high level of protection - "Tiprom U" and "Tiprom U1";
- with the average - "Tiprom K" and "Tiprom K Lux";
- with a low - "Tiprom D" and Wepost Luxe.
Differences between these varietiesThe hydrophobizator consists primarily of the depth of penetration into the concrete surface. So, "Tiprom K Lux" impregnates the material by 10 mm, and the modification marked "U1" - by 35 mm.
The compositions of this brand are applied in 2-3 layers and do not change the color of the surface at all. In general, this is a sufficiently high-quality hydrophobizer. The price for it can range from 200 to 300 rubles per liter.
Composition of the brand "Penta"
The funds produced by this manufacturer are alsodiffer excellent performance. The latest development of this brand - "Penta-820" - can be used not only on dry, but also on wet surfaces. This tool - just an ideal option for the treatment of walls in damp rooms or basements. Modifications of "Penta-811" and "Penta 818" can be used, including for bulk hydrophobization. The product of this company - perhaps the best water repellent for today.
The service life of Penta funds is at least 10 years. The consumption of the solution is 1 liter for 3-5 m2. The compositions of this brand also cost 200-300 rubles.
Hydrophobizer for concrete - a tool on the veryefficient, allowing to significantly increase the service life of the treated structures and improve their performance characteristics. However, this concerns only high-quality compounds produced by companies with a good reputation. Cheap funds from little-known manufacturers at best will be useless, and at worst - they will inflict irreparable harm on the structures and will significantly shorten its service life.