Silicone exterior paint: the pros and cons

 Silicone exterior paint: the pros and cons

Proper design of the facade - an important stage of facing buildings. Today, there are a lot of finishing materials for the decoration of external walls.

One of the best are silicone facade paints. They are highly reliable and allow you to perform fast and high-quality finishing of the facades of buildings.

Specifications

Silicone paint appeared on the shelves relatively recently. Initially, paint and varnish facade materials were presented in the form of silicate and acrylic coloring compositions, which became the basis of the novelty.

The product contains special silicone resins that act as a binder and make the paint vapor-proof and resistant to moisture.Minimal thermoplasticity makes the paint universal for use in any climatic conditions. The coating will not melt even under the scorching sun and will not crack during hard frosts.. Also, such paints are in good harmony with other paints and varnishes, including mineral, latex and acrylic.

When buying, it is worth paying attention to the composition, since siliconized materials are also on sale. They are similar to silicone products, but 50% are made from ordinary paints. Therefore, the resulting substances can not be attributed neither to silicone nor to silicate. Of course, such materials are suitable for painting exterior walls, but the durability of such coatings is much less.

Silicone compounds include mineral bases and organic artificial particles, the presence of which increases the hydrophobicity of the coating. Unlike oil and enamel, silicone products during dyeing do not form a film on the surface. Due to the porous structure the surface "breathes"that saves her from cracking in frosty weather.

If you paint plastered walls, you get a dull effect.If desired, you can mix the silicone paint with acrylic, but paint the walls with such adhesion only in the warm season.

Special features

Silicone paint is safe for human health and in liquid, and in the hardened form. Initially, the product was used as a material for painting, but over time it lost its popularity in the artistic environment. But he paid attention to manufacturers of industrial products. It turned out that silicone paint equally well suited for both internal and external work.

Besides the lack of thermoplasticity, silicone materials have high protective properties. That is why they are often used to paint the outer walls of buildings, gates, and wickets. It is possible to apply paint on a concrete, brick, cement, limy and even fibrous surface.

Silicone dyes require preliminary surface preparation prior to direct dyeing. It is possible to start work only under the condition of positive temperature (not lower than 5 ° C and not higher than 25 ° C).

Before painting, the working surface should be prepared (cleaned of traces of dirt and dust, degreased if necessary).This paint allows to exclude preliminary antifungal manipulations, since its composition in itself is a good antifungal agent. It is enough to apply a coat of primer, which will help to strengthen the plaster and increase the absorption of paint.

The peculiarities of silicone materials include the resistance to alkaline compositions, due to which it is possible to start painting in 48 hours after plastering the walls.

Facade compositions

Silicone paints can be divided into two groups:

  • protective;
  • primers.

The compositions of the funds from the first group are used for wall finishing, plaster, porous lining. Thanks to their ability to fill micropores, a durable and reliable coating is formed.

Primer compositions have similar properties, however their purpose is mechanical wall preparation. This paint strengthens the base, penetrating deep into the surface, providing moisture and steam resistance.

Benefits

Silicone paints have several valuable advantages:

  • moisture resistance;
  • resistance to sunlight, so the paint retains its color for a long time;
  • resistance to mold, fungus and other microorganisms;
  • corrosion resistance;
  • silicone paint does not crack, does not wear out, does not “float” under the influence of high temperatures;
  • wide palette of colors;
  • matte finish looks great on any material;
  • no unpleasant pungent odor, which allows the use of the product in enclosed spaces.

It is important to consider that facade silicone compounds are suitable for painting exterior walls much better than acrylic or silicate paints. According to the manufacturers, the service life of such compounds is 8-10 years, after which the coating gradually begins to lose its strength and protective properties.

disadvantages

Like any other material, silicone paint has its drawbacks. The first minus is the cost of the product. The high price is due to the use of high-quality and expensive components for the production of these paints. Approximate price for a good silicone paint - 500 p. for 1 kg, and a kilogram of stirred suspension will cost you about 250 r.

That is why such materials are rarely used for painting wooden surfaces. If it is necessary to paint the wood, then the surface should be pre-treated with special impregnations and primers. and wait one day (to absorb the top layer).

Concrete or lime walls also require preliminary work. First you need to eliminate dirt, fungus, get rid of cracks. If necessary, walls should be drained.

It should be noted that the primer for the treatment of walls should be special, intended for subsequent painting with silicone paints. The use of conventional options does not guarantee the durability of the coating.

Manufacturers

Today in the list of manufacturers of paints and varnishes leading brand Tikkurilawhich offers a wide range of universal and specialized tools of this type. Brand products have a high price, but financial costs are fully justified by the decent quality of the goods.

Enjoy popular funds more budget line Elkonwhich also differ in high quality and completely correspond to characteristics of aqueous emulsion inks.

I would like to mention the brands Halo and Dufa, which, according to consumer reviews, durable and easy to clean.

Paints and varnishes are quite popular. Bolix szbased on porous liquid glass. They go on sale already in finished form in tight packing in the form of an oval bucket. Products of this brand are sensitive to cold, so its transportation and storage should be made only at a positive temperature.

Of the features of materials Bolix SZ is to provide a palette. It is quite limited due to the fact that as a coloring pigments here can only be used powder from metals and oxides. Other pigments in the liquid glass dissolve. It is worth noting that the combination of base and pigment increases the refractoriness of paints and their resistance to acid and alkaline conditions.

Care

If you want the facade of a building to always look neat, the surface should be cleaned of dirt in a timely manner. Walls painted with paints of this type do not require the use of any special cleaning products. Dust, dirt, car soot easily washed off in the rain. If necessary, you can wash the facade with clean water with a hose.

As already mentioned, silicone compounds form a coating on the surface that provides protection against mechanical damage. However, strong scratches and grooves, of course, will be noticeable. Eliminate these shortcomings can only by tinting. The downside is that the shelf life of organic paint is small, and to pick up a new coloring composition of the same shade is not easy.

If it is not possible to find paint of identical color, you can use the following method. Take a small can of white paint and mix the contents with a few drops of pigment. Stir to a uniform consistency and add the pigment drop by drop until the desired shade is obtained.

Then apply the paint to the surface in a less visible place. Wait until it dries and evaluate the result. If on the general background smears are not visible, then the composition is correct. Otherwise, repeat the procedure.

Professional Tips

  • Experts recommend using paint only during the warranty period. The composition of materials of this type include organic compounds, so after the expiration date, they quickly lose their properties.
  • Means that contain less chemical compounds are considered to be of higher quality, but they are distinguished by a higher price.
  • When choosing paint, pay attention to the percentage of electrical conductivity. This indicator plays an important role in the dyeing of metal structures. Paint of different brands may have different electrical conductivity.
  • The consumption of materials of this type for external painting is always greater than for internal (approximately 0, 4 liters per 1 m2).
  • It is possible to paint the surface with silicone materials only after drying.
  • The consistency of these formulations is not suitable for a standard spray gun. Equipment can be used with a large nozzle and good pressure.
  • These materials can be diluted with other mixtures, but this affects the durability of the coating. Dilution is permissible only for internal dyeing.

In the next video you will find a video tutorial on the application of the Farbe Silikon Fassaden silicone facade paint.

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