Polyurethane Paint: Two-component Paint For Concrete, Plastic And Wood, Spray Formulations, Epoxy Enamels For Flooring

Repairs 2023

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Polyurethane Paint: Two-component Paint For Concrete, Plastic And Wood, Spray Formulations, Epoxy Enamels For Flooring
Polyurethane Paint: Two-component Paint For Concrete, Plastic And Wood, Spray Formulations, Epoxy Enamels For Flooring

Video: Polyurethane Paint: Two-component Paint For Concrete, Plastic And Wood, Spray Formulations, Epoxy Enamels For Flooring

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Video: Epoxy vs Polyurethane Flooring: Understand the differences 2023, February
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Construction and renovation paints are one of the main materials, as they provide a uniform coating on almost all surfaces. They are convenient to use, so any person will be able to refresh the interior in their house or apartment, creating a design according to their taste and color preferences.

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Features of the

Polyurethane paints and varnishes are a large group of polymers. The main component is polyols. The second component of polyurethane products is hardeners. As a result of the binding of molecules of paint components, a film is formed that is resistant to moisture, acids, various organic oils and gasoline. Therefore, polyurethane paint has a number of protective properties, due to which it resists negative atmospheric influences on the surface for quite a long time. Such a suspension is used for interior and exterior decoration, as well as for painting various structures.

The paint has a wide temperature range of use - from +150 to -40 degrees. The main features of the composition are high technical characteristics, among which it can be noted:

  • adhesion equal to 2 points;
  • conditional viscosity, amounting to 50-90 units;
  • the presence of volatile substances in the suspension at a level of not more than 34%;
  • the elasticity index of the composition at the fold does not exceed 1 mm;
  • the spreading rate of the dry film is 75 grams / 1m2.
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To obtain the required color and shade, a coloring pigment is used.

Advantages and disadvantages

Due to its unique characteristics, polyurethane paint is superior to other types of paintwork materials. There are a number of positive qualities that have made the widespread use of such dyes possible.

  • Excellent strength and wear resistance, thanks to which the paint is used in industry.
  • Compatible with all surfaces. Compositions are purchased for the treatment and protection of concrete substrates, metal, wooden surfaces, stone, as well as various porous materials.
  • Lack of secretions, including substances hazardous to health. This positive feature of the composition is due to the fact that polyurethane itself is harmless.
  • Resistance to the influence of an aggressive environment gives dyeing products the ability to perform their main tasks much longer than other similar products.
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The disadvantages of polyurethane coloring compositions include their high cost in comparison with other paints and varnishes, as well as a small selection of options on the market in this category. There are not so many similar products on the shelves of supermarkets, so it can be very difficult to purchase the goods that are optimal in terms of characteristics.

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By composition, polyurethane paintwork materials can be divided into two groups:

  • two-component products, requiring mixing, since each component is produced in a separate container;
  • one-component paintsthat do not require mixing - they can be used immediately after purchase and surface preparation, since all the main components are already present in the product.

One of the cans of the two-component composition contains the hardener, the second contains the resin.This variety is much stronger and more resistant to external negative factors affecting the surface. The product is captured without the participation of water vapor from the air, which greatly expands the range of use of the product.

To treat the base with a two-component material, only the required amount of paint can be mixed, and the rest can be used later.

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Classification of one-component paints by type of base

To classify one-component paints, they can be divided into three categories:

  • products based on organic compounds;
  • alkyd-urethane agents;
  • water-dispersion suspensions.

The composition of polyurethane compositions of the first category, in addition to the main elements, includes xylene or toluene. For dilution of such materials, specialized solvents are produced. The agent reaches the solid state due to the reaction of the components with moisture from the air. Therefore, the time required for this type of paint to dry completely will depend on the level of humidity in the room.

The second type contains an alkyd-urethane varnish. A distinctive feature of this paint is a very short drying time, usually it is one and a half hours. White spirit is additionally purchased as a solvent for alkyd-urethane products.

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The latter type has a similar name due to the solvent that is used for these products - in the process of work, you will need ordinary water. Water-dispersion paints are odorless and harmless to humans; when painting the surface with such a composition, there is no need to use additional protective equipment. They are captured by the moisture in the air.

It should be noted that there are one-component formulations that have a short shelf life - about six months. When purchasing such paints, it will not be superfluous to pay attention to this feature.

Powder and epoxy-polyurethane paints

One more type of polyurethane painting products can be distinguished - powder formulations. They are produced in the form of a homogenized mixture, the components of which are: pigments, hardener, polyester resin and filler.

This type belongs to thermosetting dyes. They process a product or base, after which they undergo heat treatment, as a result of which a reaction occurs between the components that are fused with each other. The result of such work is a durable and hard coating. That is why powder formulations are most often used for work in mechanical engineering.

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Epoxy-polyurethane paint is highly durable, therefore it is used in industry for the treatment of various kinds of structures that come into contact with an aggressive environment to provide them with a good level of protection.

Classification by application method

Also, polyurethane compounds can be divided into groups according to the method of application to the surface:

  • aerosol products;
  • paint that needs to be applied with a roller or brush.

The first group of paintwork materials is used for metal products and surfaces. Automotive polyurethane paint in spray cans forms a uniform coating, which is completely free of smudges and streaks.

The composition that must be applied using a painting tool (brushes, rubber or velor rollers) is mainly purchased for interior decoration.

There are polyurethane two-component compounds for painting plastics - this is a water-based base paint used for industrial painting of products.

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Manufacturers: review and reviews

The main manufacturers of polyurethane paint compositions are Turkey, Germany, Greece and the countries of the former CIS.However, if there is a need to purchase polyurethane varnish, enamel or paint, you can safely give preference to domestic products in this matter, since these paintwork materials consist of complex polymers that are successfully produced in Russia.

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Products of trade marks have shown themselves well in work Elakor, Krasko, Promtekhsnab. There is no doubt about the positive characteristics of Russian paints and varnishes, since they undergo thorough quality control, are certified and have all permits.

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Products made in China are no less popular in the market. It is represented by polyurethane compositions for painting cars, as well as for wooden and concrete bases, there is an excellent range of furniture paints in the assortment.

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American polyurethane paint products are represented by the brand Valspar… The concern of the same name has for many years been engaged in the production of paints and varnishes, the release of which takes place using the original technology of mixing dye and binding components. The composition has a lot of positive reviews, since it is easy to apply, forming a thin and durable layer with a glossy or matte sheen.

This paint does not crack and does not contain compounds harmful to health. These products are used for painting special equipment, metal structures, boats, as well as interior items and furniture.

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European company Milesi - a leader in the production of quality varnishes for wooden surfaces. Most furniture manufacturers prefer to use the products of this particular company, since the surface coated with polyurethane varnishes has good physical and chemical resistance and retains an excellent appearance. Milesi varnishes can be used for all types of finishes, including doors and solid MDF. Buyers note a wide range of colors, which allows you to choose the desired color.

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Paints and varnishes Sikkens popular as a two-component paint for metal and concrete surfaces Redox. As a result of using this material, painted objects, structures or bases acquire an excellent matte or glossy appearance.

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How to choose?

Each type of surface requires a specific type of polyurethane paint. In order to choose the right composition, you need to decide on the type of substrate for painting, as well as the characteristics of the room in which the work will be carried out.

Concrete flooring paints are used not only inside buildings, but also in outdoor conditions, which means that it is necessary to take into account the humidity of the air, as well as precipitation and the level of mechanical stress on the coating.

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That is why the selection of the coloring composition is made according to the following criteria:

  • humidity level;
  • optimal service life;
  • intensity of mechanical action on the surface.

The choice of paint for a wooden floor is carried out taking into account the following characteristics of the wood and the coloring composition:

  • features of the wood species;
  • the intensity of mechanical action on the floors is determined;
  • the options for compatibility of paint with previous types of materials with which the surface was processed are taken into account.
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For painting wooden bases, a brush will become indispensable. To paint the concrete, you need to use a roller, so that the coating will be even and smooth.

Polyurethane paints are in many ways superior to other types of coloring compositions. Excellent surface appearance, durability and durability are the main advantages of this type of paints and varnishes. Based on this, we can confidently assume that the range of such paints on the construction market will only increase.

How to paint a concrete floor with polyurethane paint can be found in the video below.

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