Silicone paint is mainly used for facade coating. It contains an organic solvent for pigments and additives, silicone resin. This mixture can be used both for businesses and in private homes. Helps to achieve a good appearance. Silicone paint is designed to protect against mechanical and thermal effects, as well as to prevent the ingress of excessive moisture, which eventually destroys the material.
It is possible to paint the surface of concrete, asbestos cement and materials that are covered with plaster, perchlorovinyl silicone paints, various foreign-made mixtures intended for the facade.
Most materials will not withstand moisture. Water slowly destroys its structure and strength, corrosion begins to appear. droptemperatures outside, constant melting and freezing again leads to the fact that the material is eaten away and destroyed. Therefore, first of all, it must be protected from water ingress. Silicone paint will be an excellent option for these purposes, it is waterproof, withstands strong temperature changes. Produced in chemical factories, there are a huge variety of colors, so for everyone there is a suitable shade that will please visually and fit the whole building - you can choose any.
Before applying paint on the facade of the building, it is necessary to carefully prepare the surface: clean it from dirt, then, best of all, with an iron spatula, scrape off all the bumps. After the surface is sanded, you need to blow it with air, and a vacuum cleaner will do. There is no way that marks, cracks, wrinkles, streaks or obvious spots of gaps in some places remain on the material.
There is one more rule, the moisture content of concrete should not be more than 8%. The paint is applied in several coats (mostly 2 or 3) by brush, roller and spray, each an hour or two apart. The first primer layer paint is diluted with xylene to a viscosity of 40 to 50 s (according to VZ-4), and after it dries, paint is applied with a viscosity of 60 to 100. The work is done with a brush or roller. If the viscosity is 50-60s, then use a paint sprayer.
The mixture is made in a mixer. First add paint, then acrylateoligomers and fillers. All this is mixed for half an hour, then a uniform composition will be obtained, the viscosity of which is approximately 14-16 s.
Today, silicone facade paint is in great demand due to its good quality and a huge number of advantages compared to other mixtures. In addition to protecting the coated material, it can bring positive properties.
- Helps the material to be more resistant to high or too low temperatures, light exposure or high humidity.
- Can weatherproof.
- Excellent tightness.
- UV resistant.
- High hydrophobic properties.
- Dries in a short time.
- The ability to pass water vapor.
- Versatility of use.
- Reduces the chance of fire.
- Paint adheres best to a concrete surface. Such enamel stays on it for a long time.
Features of work
Silicone facade paint is quite toxic, therefore, when working with it, a safety briefing must first be carried out. Under no circumstances should you violate the rules for working with this material. Otherwise, if it enters the respiratory tract, it may cause harm to he alth, and negligence in work will affect the result as a whole.
Different from regular paint
The main difference is that sheThe composition is not a carbon compound as usual, but an alternation of attachments of silicon and oxygen atoms. As you know, in a chemical reaction, such compounds are incredibly stable.
Therefore, it is not surprising that silicone paint is preferred in construction, as it will last a very long time, keep the building looking great and protect it.
Enamel, created from two bases (silicon and air), is derived synthetically. Therefore, it is long-term. It contains certain additives that help to achieve an excellent anti-corrosion effect. Also, acrylic resins and ethylcellulose are added to the paint to dry quickly.
Carbide layers are needed to improve strength and durability and avoid potential environmental damage that silicone paint protects against. The price will vary depending on these properties as well as the color. But on average, the approximate cost will be from 120 to 300 rubles per can. Susceptibility to temperature changes is reduced by special hardeners. Epoxy resins fight against the influence of aggressive chemicals, they will help to cope with them.
Sometimes it is necessary to paint material that is used at maximum temperatures (over 100 degrees). For example, fireplaces, stoves, transformers.
Nowmanufacturers offer a variety of paints that can withstand heating from 150 to 200 C. As for substances that can withstand higher temperatures, their market is narrowing significantly here. And only organosilicon heat-resistant paint can remain resistant to temperatures over 200 C.