Silicone water repellent for deep penetration "magniterm". Water repellents

A water repellent for bricks is one of the processing methods that allows you to increase the frost resistance and water resistance of future masonry, as well as improve its thermodynamics. In general, hydrophobization makes the building material more durable. The first water repellents appeared on the building materials market about 40 years ago and since then have been actively used in this area. Initially, they had a number of disadvantages, such as high fire hazard and the need for reapplication. Modern water repellents, as a rule, are devoid of these problems.

The water repellent does not allow moisture to be absorbed into the brick.

Why use hydrophobization?

Starting the construction of the premises, each owner hopes that his house will serve for a long time and will keep good appearance, no matter what. Unfortunately, no matter how expensive and high-tech the building material is, over time it will begin to lose its performance and wear out.

Building materials such as stone, concrete and brick are characterized by a porous structure that absorbs moisture. Autumn is a particularly dangerous period for these materials, when heavy rainfall is followed by frost. Water absorbed into the porous structure building material, freezes inside it and begins to slowly destroy the stone, and this entails damage to the masonry or facade decoration. In addition, wet brick, concrete and stone retain heat indoors much worse.

How often is hydrophobization performed?

Hydrophobization brickwork modern fluids are carried out once every 10 years, and this is quite enough to keep good view premises, protecting it from fungus and efflorescence. This allows you to increase the performance of the material, because the water-repellent impregnation is somewhat similar to the effect of varnish, but it can be used not only for wood, but also for concrete, stone and brick.

Hydrophobic stone impregnation is usually water-based for internal works and solvent based organic type for exterior finishes. The brick impregnation is odorless and colorless, but at the same time it is water-repellent. The hydrophobic coating is absorbed into the structure of the material by 2 cm and forms a kind of protective film inside. Rainwater and other precipitation does not penetrate into the building material, but rolls down it like drops of water on glass.

Processing a brick with a water repellent helps to protect it from darkening and deterioration of its appearance, which occurs over time. Over the years factors external environment significantly damage building materials, leaving dust and moisture particles inside the brick. This noticeably changes the color of the walls and spoils the appearance of the building.

The water repellent agent can be used to process wooden coatings, it will not only prevent darkening, but also exclude rotting of the material. Hydrophobic impregnation does not cause corrosion of reinforcing steel when processing areas with its presence. The sealant for hydrophobization has high atmospheric resistance, therefore it does not deform building materials and does not lose its performance characteristics when high temperatures... The water repellent can withstand temperatures from -50 to + 150 ° C.

Types and scope of application of hydrophobic impregnations

Today, in building materials stores, you can find a huge number of varieties of hydrophobic liquid to protect bricks from moisture. Solutions for hydrophobization differ in the size of particles that are formed when a liquid is dissolved in water or organic mixtures. According to their composition, hydrophobic impregnations are divided into several types:

• alkyl silicones;
• N-siloxanes;
• silanesiloxanes.

Alkylsiliconates are the cheapest option for treating brick and masonry. N-siloxanes are more advanced impregnations with good water-repellent and protective properties.

Silanesiloxanes are the highest group of hydrophobic impregnations with the best characteristics and the greatest penetration depth.

These impregnations can create a wet stone effect, which is very popular among architectural designs lately.

The application of hydrophobic impregnations is often used in the restoration of valuable architectural monuments and masonry of past centuries. The impregnation is colorless, therefore it does not change the color of the walls and the color of building materials, but, on the contrary, gives them shine and a neat look. Impregnations can be used to treat walls in plumbing rooms - in saunas, swimming pools and baths. Hydrophobic impregnations are used to seal window seams and doorways.

The use of hydrophobic impregnations makes it possible to significantly reduce the cost of repairing facades and prevents the destruction of concrete, plaster, masonry and other surfaces. Most engineers and architects recommend processing brick, concrete and masonry walls immediately after construction. Treated materials retain their operational qualities much longer, and the service life of the entire structure with deep impregnation increases by at least 15 years.

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Water is a source of vitality, but excessive moisture can be extremely destructive, especially when it comes to building materials and structures. Therefore, very often, during the construction of structures, it is required to additionally impart moisture-proof properties to the structure in order to increase strength and durability and reduce possible cash costs for repairs and elimination of other problems.

Concrete and brick are the main building materials. Possessing a porous structure, they are able to swell due to the absorption of water by the capillaries and pores of the material, which is explained by the high water absorption (85-87%). Moisture can rise up from the source of its origin to a height of up to two meters along a concrete or brick base. Penetrating inside, water violates the salt composition of the material. And with constant moistening of the structure and its drying, white efflorescence is formed on the walls, which significantly affects the strength and spoils the appearance.

In addition, at low temperatures, the water inside the pores of materials can increase in volume up to 8-9%, thereby creating additional pressure inside the walls of the structure. This leads to the creation of internal microcracks, and in the future - the destruction of the cladding and the formation of cracks on the outer side of the building, and hence to the deterioration of the thermal insulation properties.

Neither of natural materials is not able to resist this, therefore, various water repellents are used to impart moisture-protective properties to materials. Concrete, brick and any natural stone should be subjected to such processing, since they are capable of absorbing up to 85% of water from their surface.

There are two types of water repellent compounds:

• powders that are added to concrete and brick at the stage of their manufacture;
• liquid impregnations, with which the surfaces of already erected buildings are treated.

The hydrophobic coating is a complex organosilicon polymer compound, less often organic resins or metal alkylsiliconates and does not form a film on the wall surface.

The composition, penetrating a few millimeters deep into the material, evaporates from its surface and does not change the appearance of the wall, leaving protective layer.Treatment of the walls of structures with such impregnations increases the ability to retain heat and durability, provides protection against negative impact the environment. At the same time, water absorption is reduced by 12-19 times, which significantly reduces the likelihood of the development of fungi and mold.

It is important to pay attention to the fact that water repellents do not tighten cracks, therefore, in rare cases, treatment with water-repellent impregnations is inappropriate.

Consumption of water repellent agent for concrete and brick walls is 250-500 ml per 1 sq. M. It is necessary to renew the moisture-proof impregnation every 8-10 years.

Before using the water repellent, the surface should be thoroughly dried (rare compounds are applied to a damp surface) and cleaned. Mold, mildew, traces of grease, rust and efflorescence must be removed from the wall surface with special solutions and compounds.

The most famous water repellents

Water repellents are classified into surface or volumetric agents. With surface hydrophobization, the walls are treated with a brush, roller or spray gun. Volumetric is performed by pouring the solution into pre-drilled holes over the entire area of ​​the treated surface. The second method of treatment is preferable, and the effect is protected until the demolition of the building, while with the first method of treatment it lasts only 15-25 years.

The most famous and most commonly used tools include:

Treatment of wood with water-repellent impregnations

Undoubtedly, wood belongs to the category of the most frequently used materials in the construction of structures and its interior decoration due to ease of processing, good consumer and aesthetic properties. Regardless of the quality in which wooden elements are used - as a material for the construction of a building or, among others, for finishing work, preliminary treatment with special hydrophobic compounds is a prerequisite for successful and long-term operation in the future, since moisture negatively affects the tree, significantly reducing its service life.

Exposed to moisture, elements become more sensitive to mold, fungi and insects, which ultimately will affect the condition of the entire structure as a whole. When choosing a protective impregnation for wood, first of all, preference should be given to solutions with moisture-repellent properties.

Hydrophobic impregnations

The range of impregnations used to protect wooden structures is quite wide. Modern manufacturers of building materials offer both narrowly targeted solutions and multifunctional.

The first (narrowly targeted) impregnations are those, the main task of which is to reliably protect wood from the effects of excessive moisture and preserve its integrity. Such impregnations can be used as an independent agent, or they can be added to the composition of special bio-primers before using paints and varnishes. Bio-primers are applied to a previously prepared and dried tree and kept until completely dry, and only after that you can start painting or using varnish.

The group of multifunctional products includes impregnations and water-repellent solutions with various additional effects. The use of such funds significantly saves time and money.

Treated wood is more resistant to moisture, dirt and dust. This is especially important for rooms with high humidity - baths and saunas.

Assortment of impregnations for wood

Since the market for construction and auxiliary materials is constantly evolving, presenting new brands to the consumer. It would not be superfluous to mention already well-proven products in this area.

1. The most popular among hydrophobic agents today are Belinka brand impregnations. They have their high quality and reliability thanks to a carefully developed composition. As a rule, the products of this manufacturer are multifunctional, which significantly saves time during repair and construction. In addition to moisture protection, these impregnations protect against sun exposure, preventing fading and cracking.
2. Another well-known and no less reliable brand is Aqualazur. The range of impregnations of this series meets the highest requirements and is extremely wide. The manufacturer offers tools for both indoor and outdoor work. Impregnations do not contain toxic substances, dry quickly and are made on a water basis.
3. Means of the "Neomid" series have good moisture-protective properties. Impregnations from this manufacturer create a durable waterproof layer on the wood surface and keep the wood from swelling. The most popular product of this brand is Neomid Bio Color.

When choosing a particular impregnation, one should be guided by certain principles:

• the appointment of a hydrophobic impregnation;
• additional requirements for impregnation (protection against mold, mildew, UV rays, etc.);
• whether the impregnation should fulfill the tinting properties.

This, as well as the area of ​​work carried out, will significantly affect the price, which in any case will be lower than the elimination of possible damage. The approximate consumption of hydrophobic impregnations is 200-450 ml per 1 square meter, depending on the "texture" of the tree.

Also read on our website an article about DIY selective coating.

Video - Water repellent NEOGARD. DIY hydrophobic coating

As you know, "water wears away a stone." Even cement is affected by moisture. Reliable concrete buildings can crack after regular contact with water. And at the initial stage, spots and stains appear on such surfaces, which do not add beauty to the facade. It is possible to increase the water resistance of the material and increase the resistance to environmental influences with the help of special hydrophobic additives.

They are introduced into the concrete solution during the construction of the structure, and are also used when carrying out renovation works and reconstruction of old buildings. With the help of these additives, the plasticity of the solution increases, it does not stratify when solidified. When moisture gets on the surfaces they are treating, efflorescence and various stains are excluded.

It is a special impregnation which, when applied, forms a moisture-proof film on the concrete surface. It prevents moisture from entering the material. In addition to concrete surfaces, it perfectly protects stones, ceramic tiles, wood, etc.

Available for sale different kinds water repellents, which differ in hydrodynamic, chemical and other properties. After processing, the process of hydrophobization occurs.

Some manufacturers claim that their solutions last 30 years. And if you use a deep impregnation, then it can retain its properties until the end of the service life of the building itself.

Most often, silicone compounds are used in construction, which are based on:

• alkoxysilanes;
• hydro-containing siloxanes;
• potassium alkyl silicanes.

It is worth considering that only the last category of formulations refers to water-soluble compounds that are supplied as highly alkaline solutions, therefore, all precautions must be followed with them. This is a cheap version of a water repellent. Due to this, it is used most often, it is introduced into the solution directly with mixing water.

What are the methods for determining the frost resistance of concrete, you can find out in this

Sometimes vendors offer a cheaper sodium alkyl silicate supplement. But it is not the best choice, since, unlike a potassium compound, sodium over time surrounds itself with water molecules, which lead to the destruction of the material. It turns out that the composition has a double effect: water repellency along with corrosion.

The video tells about the composition of the water repellent:

Find out how much cement is in 1 cube of concrete m400, you can find out from this

Manufacturers and the cost of their products

Price water repellent solutions depends on their composition, packaging volume and manufacturer. Here are examples of several brands.

What is the best roster?

For concrete, such a product must be chosen on a silicate basis. They are leaders in this area. Such solutions are popular due to the fact that with the help of them:

The effectiveness of water repellents for concrete structures has been proven by many years of practice in their use. Surfaces treated with them improve their performance characteristics. And most importantly, they provide cement structures with moisture protection.

What is the composition of concrete m200 per 1m3 can be read from this

When choosing ready-made compositions, it is necessary to focus on the quality of the building material, to buy products only from well-known manufacturers with a long service life.

Despite the fact that concrete is one of the hardest materials on Earth, moreover, gaining strength over time, concrete structures and products need effective protection from precipitation, groundwater and moisture vapor condensation. Let's see what a water-repellent concrete impregnation is for?

What is a water-repellent concrete impregnation for?

Any, even very dense concrete structures have surface pores and surface microcracks. Water enters the pores and microcracks, fills them and freezes at negative ambient temperatures.

As you know from the physics course high school, water is a unique substance capable of increasing in volume by more than 10% upon freezing. At the same time, the force of pressure of frozen water on the surrounding materials reaches a huge value - more than 200 MPa or 2000 kg / cm2!

Such efforts cannot withstand thick-walled steel or cast iron containers, let alone concrete.

Gradually, moisture penetrates deeper and deeper, gets to the reinforcement and ultimately makes the concrete structure or concrete product completely unusable. In this regard, any water-repellent impregnation for concrete has its ultimate goal to reliably clog surface defects and thus protect concrete from destruction, appearance, as well as damage by molds, mosses and lichens.

At this point in time, the following types and types of water-repellent impregnations "on concrete" are successfully used in construction practice:

• Mineral impregnation. It is used for processing concrete after it has set and cured. The impregnation penetrates the concrete to a certain depth and clogs up its defects for a long time. In particular, mineral impregnations come into contact with moisture and, creating insoluble compounds with it, prevent its further penetration into the deep layers of concrete. Popular brands: LITSIL line;
• A series of impregnations for concrete "Monolit-20M" from the domestic producer LLC "Prizma". The impregnation penetrates into the thickness of the structure by 20-50 millimeters and enters into a chemical reaction with the base. As a result of the reaction, microcrystals are formed similar to natural stone... In fact, the impregnation becomes part of the structure, strengthens it by 70%, makes it water-repellent, but at the same time allows the concrete to breathe. In addition, the wear resistance of the concrete surface increases by 100%, and the frost resistance increases up to 200 cycles. The main field of application is protection and imparting water-repellent properties to: car parks, sidewalks, garden paths, blind areas, etc.;
• Impregnating compositions based on organosilicon compounds. Such compositions penetrate into concrete to a depth of 25 millimeters, evenly "creep" over its volume and hardens with the formation of high-molecular and low-molecular compounds (polycondensation process). The result is a reliable waterproofing barrier and protection against surface efflorescence. The vapor permeability of concrete is maintained. The most popular organosilicon impregnations: Crystallisol and Monolit-Hydro;
• Silicone water-repellent impregnation for concrete. It is one of the most reliable protection against harmful atmospheric factors: snow, rain and frost. The material penetrates into the surface layers (up to 8 millimeters) of concrete and hardens to form a transparent film that is 100% impervious to water. Concomitant positive factors: increase thermal insulation qualities, increase in frost resistance and surface hardening. Popular brands: AVIS, Litos, AquaBarrier, etc.

Rules for applying water-repellent impregnation to concrete

• Application with a spray gun, paint brush or paint roller is allowed;
• Application on fresh, even set concrete is not allowed. V general case it is necessary to withstand 14 days, and best of all 28 days during which the material acquires 80% of the brand strength;
• All types of water-repellent impregnations should be applied at positive air temperatures in the range from 5 to 40 degrees Celsius. An increase or decrease in temperature from the specified range significantly degrades the result;
• Careful and meticulous surface preparation is required. Shallow gouges, chips and cracks must be repaired. The best method is dry sanding the surface. The fact is that impregnations hold the concrete structure together at the molecular level, therefore, a priori, they cannot correct the indicated defects.

Before application, the surface of the base is thoroughly cleaned of dust, oil stains and other contaminants.

Facade water repellent MIXONIT MONOLIT MH55 is designed to impart water-repellent properties to absorbent mineral surfaces, incl. facades made of silicate, ordinary, clinker brick, concrete, ceramics, slate, plastered surfaces, fiber cement slabs. Especially recommended for the protection of natural and artificial decorative stone, tiles for "wild stone", roofing tiles, slate. Ideally protects newly embroidered veneer seams from moisture. MN 55 creates waterproofing of building facades and joints between panels, which prevents the surface from getting wet, the appearance of mold, moss and fungi, and also helps to maintain vapor permeability. The water repellent agent is environmentally friendly, prevents surface contamination. Water repellent MIXONIT MONOLIT MH55 can be used from roof to foundation for all materials that can absorb water and increase their service life by 5-20 years. It is used for processing cement-containing facades of houses, buildings, fences, plinths, balconies, small architectural forms, parapets, ebb tides, slopes, in garages, kitchens, etc.

MIXONIT MONOLIT MH55 belongs to the newest generation organosilicon water repellents. It is very economical and gives the materials maximum hydrophobicity. MN 55 reduces the water absorption of concrete and foam concrete 15 times, brick - 30-40 times, natural and artificial stones - 10-15 times. It also increases the strength of concrete by 30% due to deep penetration into the surface. MH55 is a ready-to-use protective compound against moisture penetration, efflorescence and white spots. Prevents UV radiation and material fading. Resistant to atmospheric influences (snowfalls, rains, fogs, sun rays, frosts) and mechanical (dust, vibration, washing, shock). The water repellent does not change the color and texture of the surface, does not leave marks, wet effects and shine.

Stir the water repellent MIXONIT MONOLIT MH55 thoroughly before use. Impregnation is ready for use. Do not mix water repellent with other water repellents, do not dilute. MH 55 is applied with a soft brush or a brush-bristle brush in a continuous layer on the base until completely saturated. Can be applied by roller, dipping method. Use with good ventilation. An indicator of the saturation of the base is the appearance of smudges up to 30 cm long. When working on large areas, it is recommended to apply Hydrophobizator by spraying. Avoid fogging. To achieve the maximum effect, it is recommended to apply a double layer of Hydrophobizator (wet on wet). Avoid the formation of puddles of the composition on the surface and do not apply to an already dried layer. Avoid getting the Water repellent on the glazing. Complete hydrophobization occurs in 24-72 hours, depending on climatic conditions. At this time, it is necessary to protect the surface from the penetration of water and precipitation.

Consumption of MIXONIT MONOLIT MH55 water repellent depends on the type of surface, structure, porosity and is approximately 0.15-3.0 l / m2:

• Concrete: 0.2-0.5 l / m2
• Mineral plasters: 0.5-1.0 l / m2
• Artificial "wild" stone: 0.15-0.25 l / m2
• Natural stone: 0.4-3.0 l / m2
• Brick and clinker: 0.4-2.0 l / m2
• Aerated concrete: 0.5-1.8l / m2