Thermal insulation paint is a paint and varnish composition with special characteristics, due to which the buildings are protected from overheating. Also heat-insulating paintwork materials prevent heat losses. Such paints paint the external walls of buildings, hot water supply and heating systems, roofs of buildings, ventilation systems, etc.
- Features thermal insulation paints
- paint components
- Instructions for use
- Tips for paint selection
- paint consumption
- Popular brands
- Brand "Emery»
- Brand "Astratek»
Features thermal insulation paints
surface insulation can be achieved not only throughpaint, but also other materials, for example, roll or sheet coatings. However, such materials have a significant drawback: installation work is labor-intensive and requires certain professional skills.
Properties of heat-insulating paints:
- Effective thermal insulation.
- Anti-corrosion properties do not allow oxidation processes to develop. In other words, heat-insulating paintwork materials act as rust inhibitors.
- LKM of this group include antiseptics, which prevents the development and reproduction of mold, fungus and other pests.
- If the surface is hot, heat loss will be minimized. In the case of a cold surface, there is no possibility of condensation on it.
- The composition does not contain flammable combustible components, so the paint is completely fireproof.
- Properties of paintwork materials allow to suppress sound fluctuations( soundproofing qualities).
- When the paint dries, a durable, yet elastic( non-collapsing stretch) coating forms on the surface. The paint and varnish layer is resistant to moisture, negative temperatures, and ultraviolet.
- The coating is resistant to sharp temperature fluctuations in a wide range( from 60 degrees below zero to 250 degrees Celsius).
- You can apply the paint in any way you like, including brush, roller or spray gun.
- Coatings are durable enough: the warranty service life is 10 years.
Please note! A millimeter layer of paintwork gives the surface the same thermal insulation qualities that can be expected from a layer of mineral wool with a thickness of 50 millimeters.
In different compositions there may be different in their purpose additives, but in general, heat-insulating paints can not do without the following components:
- Solvent, which is used as distilled water. Organic solvents are not used in heat-insulating coatings.
- Binder. The component is a fine dispersion with acrylates. Thus, thermal insulation compositions have a polymeric acrylic base.
- Filler. Ceramic hollow spheres are used as filler material. In each of the spheres there is a cavity of round shape, from which air is removed.
Thanks to high-strength ceramics and resistance to high temperatures, the coating acquires adequate strength in relation to mechanical influences. Low heat conductivity is provided by vacuum spheres. Spheres are so small in size that after staining they come into contact with each other, providing a multi-layered obstacle, through which heat can hardly penetrate.
Heat-insulating paints are classified by composition and by object of use.
For the components of the paintwork materials are divided into:
- produced on the basis of water;
- based on acrylates.
For the application of the paint are divided into three groups:
- for walls;
- for pipes;
- for facades.
The heat-insulating coloring compound looks like a greyish-white paste ready for use. The paint is poured into plastic containers. The cost of the formulations can vary considerably depending on the components in them.
Instruction for use
The application of the paint is carried out in the following order:
- Remove corrosion, debris and dust from the surface.
- When it comes to metal, we process the material with a rust converter for 2-3 hours.
- If the concrete or brick is to be painted, we clean the surface of plaster and cement milks. We put on the material putty, we grind the surface and blow it with air under pressure.
- Add a little water to the finished product and stir the solution thoroughly. Mixing can be done either manually or with an electric drill with a suitable nozzle. If a drill is selected, turn on the device at low speed so as not to destroy the ceramic spheres.
- Thermal insulation paint is applied in the same way as any other paint. Use a brush, roller or spray. We apply 2-3 layers, so that the surface is strong enough.
- Surface operation can be started no earlier than a day after painting.
Please note! A pledge of good adhesion( adhesion of dissimilar materials) - thorough cleaning of the surface from dirt and dust.
Advice on choosing a paint
When choosing a paint and varnish composition, it is recommended to consider the following circumstances:
- The level of mechanical stress on the coating.
- The material consumption is determined by multiplying the specific consumption in grams per surface area. The result is multiplied by the number of planned layers.
- Before buying, we study the composition for the presence in it of the necessary additives( for example, anti-corrosion agents).Compare the paintwork from different manufacturers. We pay attention to reviews about this or that paint, its advantages and disadvantages.
- Compositions for interior and facade work differ in their characteristics. If you want to paint the facade, choose a waterproof paint with the highest possible vapor permeability.
- When buying paint for interior work, we pay special attention to the absence of toxic components in the composition.
- LMC for painting pipes should be distinguished by high thermal stability.
- If you need to paint a large area, a good solution is to use a spray gun.
- For the painting of a small surface area with many small details, the best tool choice is a paint brush.
- A stable thermal insulation effect can be obtained only if 2-3 layers of coloring material are applied to the surface.
The performance of the paintwork depends largely on the following parameters:
- Varieties of the material to be painted. To paint concrete, expanded clay, foam concrete, wood, metal or brick, different amounts of paint are needed. For example, the coefficient of paint loss for products made of concrete, brick and wood varies between 5-10%, but on metal surfaces the overrun does not exceed 3-6%.
- The presence of irregularities, depressions, roughness on the surface. The problem here lies in the difficulty of determining the actual area of the product to be painted. In some cases, over-consumption of paint on uneven surfaces reaches 30-40%.
- Thickness of applied layers. At a millimeter thickness of the layer, the approximate consumption of paint will be liter per square meter. In this case, for different materials, a different layer thickness is recommended: for a tree, 2 millimeters;for metal, foam concrete, expanded clay and brick - 2.5 millimeters, for concrete - 1.5 millimeters.
- Coverage areas.
- Composition LMC.
- Weather. If the paint is applied in the absence of wind, its consumption is reduced by 2-5%.
- The tool used for applying paintwork. The maximum flow rate is typical for operation with a spray gun.
Below we will consider the characteristics of heat-insulating paints from various manufacturing companies.
Liquid ceramic paint "Corundum" is used for the following types of surfaces:
- pipelines and heating mains;
- boiler houses, heating systems;
- facade parts of buildings;
- tanks and other metal containers;
- railway wagons, airliners, cars;
- internal surfaces of private houses and public buildings;
- premises, operated in conditions of high humidity( bathrooms, steam rooms, etc.).
Under the trademark "Corundum" four varieties of paint are produced:
- "Classic".Paint is used for painting surfaces in standard conditions. Can be used both for painting facade and interior parts of buildings. The coating is able to withstand temperatures ranging from 60 degrees below zero to 250 degrees Celsius. Packed in cans of 3 and 10 kilograms, as well as in 20-liter buckets.
- Anticorruption. It is used to protect painted surfaces from corrosion.
- "Winter".Designed to work in low temperature. Such a paint can be applied even at 10 degrees below zero.
- Facade. The paint is specially designed for painting exterior surfaces of buildings.
Advantages of AstraTech paint:
- is environmentally friendly due to its lack of organic solvents;
- long life of coatings( 15-30 years);
- no condensation on painted surfaces;
- the possibility of thermal insulation of materials subject to heating up to 260 degrees above zero.
There are 3 varieties of LMC from AstraTech:
- "Universal".It is used for painting both facade and interior surfaces. Peculiarity of the paint - the presence of only two colors: gray and white. Coverage copes with five cycles of full freezing and defrosting. LMC is diluted with water. The surface can be operated in the temperature range from 60 degrees below zero to 260 degrees Celsius.
- "Metal".Paint, as the name implies, is intended for painting metallic products. It is produced only in gray color. Heat resistance of paint: from 60 degrees below zero to 200 degrees above zero.
- Facade. LKM is used for the treatment of facades, as it has increased water-repellent characteristics and high vapor permeability. This type of paint is produced in white, but can be tinted. The composition is very viscous, so often as a tool for applying a spatula.
The use of thermal insulation paint, despite its high cost, is fully justified. Thus, you can not only reduce heat loss, but also reduce the cost of heating the building.