Heat resistant paint. Heat-resistant paint for metal for furnaces

Among the means for protecting surfaces heated to high temperatures, varnishes and heat-resistant paints for stoves and fireplaces can be distinguished separately. Their main feature is that they can cover not only metal, but also brick and concrete.

In order for you to find the best composition for processing a brick stove in the country or in your own home, we have collected information about the top ten in demand on the market. The popularity of products is justified by the practice of application and the solid reputation of the manufacturer. Based on our recommendations, the choice of product will be simple and clear.

The need to paint stoves, brick chimneys and fireplaces is quite common. Demand creates supply, so in stores you can find a lot of compositions suitable for this purpose from Russian and foreign companies.

4th place - DAP Derusto Heat Master

This enamel is universal and suitable for painting surfaces made of brick, concrete and metal. Made in USA. It is of good quality and high price.

In terms of quality, this paint is similar to the higher-ranked position, only it is characterized by a lower maximum allowable temperature. But for brick surfaces, this does not matter.

Specifications:

• color: silver, black;
• maximum temperature (°C): 538;
• packing: can;
• displacement (l): 0.52;
• gloss: matte.

Usually one layer is enough for painting, and the drying time is 4 hours. After that, it is necessary to carry out thermal hardening. The paint stays on the surface for a long time and is resistant to physical impact.

5th place - Dufa Schwarzer Peter

High-quality and expensive black enamel from a well-known German manufacturer is one of the best representatives of the “family”. It is expensive and has small packaging, so it is used only to cover small surfaces.

Specifications:

• black color;
• maximum temperature (°C): 140;
• packing: bank;
• displacement (l): 0.125;
• gloss: glossy.

Dufa products have lower temperature resistance than all other types that are presented in the rating. Therefore, before using this heat-resistant paint on the surface of a brick oven or fireplace, make sure that the masonry does not reach temperatures above 140°C.

The paint does not require heat hardening. The interlayer drying period is a day, although only a single layer coating is usually used.

6th place - Motip

Colorless varnish produced in Holland. The price is quite high, which, combined with the application of 2-3 layers, makes these products expensive. But the quality of this heat-resistant aerosol is very good.

The product under the Motip brand has a very high temperature resistance, uncharacteristic of transparent varnishes. They can also process metal, such as a fireplace grate.

Specifications:

• color: transparent;
• maximum temperature (°C): 650;
• packing: can;
• displacement (l): 0.4;
• gloss: matte.

Drying time between coats is only 5 minutes, and complete drying occurs in 40 minutes - these are good indicators.

In addition to varnish, there is also a thermal paint from this company in black and silver, which is also suitable for processing bricks.

7th place - Abortion

Made in China, the Abordage-branded temperature-resistant spray is used primarily for automotive applications, but can also be used to protect and decorate brick and concrete surfaces.

Specifications:

• color: silver, black;
• maximum temperature (°C): 200-300;
• packing: can;
• displacement (l): 0.4;
• gloss: matte.

This spray gives bright and juicy colors, so one layer is usually enough for high-quality coverage. The downside is the lack of heat-resistant colors.

8th place - Decorix

Decorix Varnish is one of the most affordable heat resistant paints on the market that can be used to coat stone, concrete or brick.

Like most heat resistant varnishes, Decorix is ​​sold as a spray. This is the most convenient form for applying a protective coating on a flat and large surface.

Specifications:

• color: transparent;
• maximum temperature (°C): 250;
• packing: can;
• displacement (l): 0.52;
• gloss: glossy.

The temperature range at which Decorix varnish can be applied is from +10 to +30°C. Usually 2-3 coats are enough for a high-quality surface coverage.

It is necessary to maintain a gap of at least 30 minutes between them. One bottle is enough to paint an area of ​​1.5-2 m 2.

9th place - Monarca

Aerosol paint made in China that can be applied to different types of surfaces.

Quite a high-quality product of a brand not very well-known in Russia. High allowable temperature allows you to paint both bricks and metal doors of the blower and firebox

Specifications:

• color: silver, black;
• maximum temperature (°C): 600;
• packing: jar, can;
• displacement (l): 0.52;
• gloss: semi-gloss.

Based on an acrylic polymer, this spray dries quickly after application. The total drying time is only half an hour. For hardening, it is necessary to warm the brick. A can is enough for 3 m 2 when painting in one layer.

Choice between paint and varnish

You can treat the brick surface of fireplaces and stoves with paint or varnish. Both options have pros and cons.

The varnished surface acquires a “wet” shade. Therefore, the pale red color of the brick will become more reddish, and the white grout will become gray.

The varnish can be applied to the entire surface at once. This makes it quick and easy to get the job done. When painting, if enamel is used and you need to keep the masonry pattern, you will have to use a stencil and close the grout, and this is extra time and extra effort.

In addition, the varnish immediately contributes to the coating of not only bricks, but also masonry joints. This prevents the grout from crumbling as a result of thermal expansion. If enamel is used for painting, then it is necessary to fix the seams between the bricks with a high-temperature sealant.

In the case when the surface pattern is not important, then paint, as well as varnish, can be applied in a continuous layer on both brick and grout. Black enamels are often used for baths, as they are most common in stores.

When painting a stove placed in a bathhouse or sauna, it is necessary that the composition, after drying, withstand the high humidity typical for this type of premises.

We will acquaint you with the guidelines for choosing a paint for restoring the external coating of radiators, which we strongly advise you to read.

Conclusions and useful video on the topic

View of the stove, painted with beige paint. Odor weathering period:

Painting the stove with a brush and subsequent patination:

Now there are no problems with the selection of heat-resistant paint or varnish, which can be used to process brickwork. A wide variety of available colors will make it easy to fit a stove or fireplace into the interior.

However, first of all, it is necessary to make sure that the protective composition is suitable for the operating conditions and carefully, in accordance with the instructions, carry out work on covering the surface with it.

Tell us about how you selected a heat-resistant coloring composition to update a brick stove. Share which option you preferred and why. Please leave comments in the block below, ask questions on the topic of the article, post a photo.

Paint is the most common and affordable oven coating. Decorating your device with paint is quick and effortless. The special composition, which has thermal paint, will protect the device from dust and dirt for a long time, and will also help to fit it into any interior.

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What is heat resistant paint?

A special coating, which in its composition has varnish, as well as other components that provide a coating resistant to high temperature performance. When completely dry, the thermal paint for the oven creates a kind of film on the working surface, which, in addition to resistance to temperatures, has water-repellent and dirt-repellent characteristics.

Types of heat-resistant paints for ovens

Dyes marked "heat-resistant" are classified according to the degree of maximum temperature they can withstand. Several main types should be distinguished:

1. up to 80 degrees. Such a composition has the lowest degree of heat resistance. At temperatures closer to eighty degrees, they begin to deteriorate: crack and inflate. For devices that will run on wood fuel, this composition is not suitable, because the combustion temperature of the logs is much higher.
2. up to 100 degrees. Such products are more sustainable. They don't fade or fade. They are used to color those parts of the heating product where water is located. After all, the boiling point of water is 100 degrees, so the dyes in this case will last a very long time. But it is not recommended to completely paint all oven surfaces with this coloring agent, as it may crack. On the packaging of products of this type, you can find the inscriptions "acrylic" or "alkyd". The most common aerosol forms of release.
3. up to 120 degrees. High-temperature paint for this type of oven withstands temperatures even more. These are products that have polyurethane, epoxy or acrylic in their composition.
4. up to 200 degrees. Such coatings can be applied to furnace parts that do not heat up much (blowing door). If you apply products of the fourth type to the entire surface or metal parts inside, it will begin to burn and quickly deteriorate.
5. up to 400 degrees. These are ethyl silicates or epoxy esters. The composition of such products includes small metal particles, which help to significantly increase the resistance of the coating to heat and increase its service life.
6. up to 650 degrees. Such products can be used to cover the entire surface of the oven. With strong heating, they will not melt or deform. Silicone, zinc and aluminum are added to their composition, which provide resistance and durability.

The parts of the furnace are made up of different materials. Depending on what the furnace device is made of, the style of the room in which it is located, it is worth choosing a paint for it.

Furnace material

Parts of a brick oven, as well as the doors of a metal device, can be painted with a dye that can withstand temperatures of 600 degrees.

To paint the entire surface of a metal device, heat-resistant enamels are chosen that can withstand more temperatures.

Refractory paint for brick ovens is used only for those parts that come into contact with fire. It is not worth painting all surfaces with such paint, as it has a high price.

When buying paint, you should pay attention to what surfaces and materials it is used for.

Color

The color range of these products is very rich. You can paint the stove in any color, you can use several shades. It all depends on your taste and skill. You should not choose too light shades for coloring, as dust from combustion products will settle on the surface of the furnace device and you will have to constantly wash it.

Very often, the price of heat-resistant paints for ovens depends on the color of the coating: white paint will cost less than a color of the same composition.

Release form

Manufacturers of this product produce paint in various forms and containers. Aerosol paints are the most popular. They are easy to use and fit evenly. Even a beginner can use them. Paints of a standard form are presented in cans of various sizes or in buckets. These products are applied with a brush or roller. Their consumption is slightly higher than in aerosol.

Top Brands of Heat Resistant Furnace Paints

There are manufacturers who have long established themselves in the construction market. We offer a list of the main brands:

For metal ovens

For brick

How to make heat-resistant paint with your own hands?

Craftsmen or oven owners usually buy ready-made heat-resistant coloring compounds. But they can also be made at home.

The proven way is the following: aluminum powder is added to the base. Liquid glass can serve as such a basis. These components are easy to find in specialized hardware stores. As a result of mixing, a substance of a silver metallic color is obtained, similar to ordinary paint.

When first fired, it emits a characteristic unpleasant odor, but after a few days of operation it disappears. Due to toxicity, such paint is recommended for use on outdoor stoves or those located in non-residential premises. Such heat-resistant paint for ovens made of brick or metal will serve you for several years.

Output

Heat-resistant paint is the best option for painting the surface of the furnace and its individual parts. Due to its resistance to high temperatures, such a coating will reliably protect the furnace device from dust and moisture. When choosing a heat-resistant paint, it is worth considering the material on which it will be applied.

Products for brick and metal surfaces differ in composition and other characteristics. The construction market has a huge selection of color palettes of heat-resistant coloring compositions that will appeal to even the most picky owner of the stove.

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Residents of city apartments and country houses are increasingly willing to have fireplaces and stoves in the interior of their homes. In order for these structures not only to warm with their warmth, but also to decorate the room, fit well into its design, they need to be finished, for which heat-resistant paint for fireplaces and stoves is usually used. Next, we will consider its features and application technology.

Paint selection

Coating Features

Conventional paintwork, of course, cannot be used in this case, since the surfaces of stoves and fireplaces heat up to high temperatures. Therefore, special, heat-resistant paints are used. They contain substances that allow the coating not to lose its properties even at very high temperatures and aggressive environments.

Refractory paint for a fireplace can withstand up to 600-650 degrees. Some manufacturers raise this figure over 700 degrees. Given that the temperature released during the combustion of wood is about 300 degrees, these characteristics are quite acceptable.

Most often, heat-resistant compositions are made in the form of a suspension based on varnishes with the addition of special mixtures. When dried, they form a film of special quality, which protects the base from high temperatures. In addition, heat-resistant paintwork also performs decorative functions, like conventional coatings.

Subject to the painting technology, the guaranteed service life of the painting is about 10 years.

Paint Features

As a rule, stoves and fireplaces are stone structures that have some cast iron elements, for example:

• dampers;
• doors;
• Covers;
• Frames, etc.

You can paint the entire structure, including casting. However, it should be borne in mind that heat-resistant paint for stoves and fireplaces differs in its composition, and hence in the scope, i.e. For different surfaces you will need different types of coatings.

Therefore, when buying a material, first of all, you should pay attention to what types of surfaces it is intended for. Otherwise, the finish will be short-lived.

If the structure is located indoors, then water-dispersion fire-retardant paints for metal Polistil are suitable for painting decorative metal elements. To cover a brick or stone surface, special compounds are needed, which are produced by both domestic and foreign manufacturers.

Heat-resistant paint for a brick fireplace - Zerta

If the structure is located on the street, then for metal surfaces, compositions with a high content of anti-corrosion substances should be used. For example, for elements located not in the immediate vicinity of the hearth, Zinga conductive paint is suitable.

It is able to withstand heating up to 150 degrees Celsius and at the same time does an excellent job of protecting the surface from corrosion.

Advice! The addition of aluminum powder to the composition will improve its decorative properties, as well as ensure uniform distribution of heat over the surface.

For structural elements that are located closer to an open fire and a chimney, you will have to use more heat-resistant paintwork. For example, you can use universal heat-resistant compounds. At the same time, its price will depend on the characteristics of a particular coating.

In the photo - painting the fireplace with a brush

Painting

Training

Output

As we found out, the main difficulty in painting stoves and fireplaces lies only in the correct choice of coloring composition. Otherwise, the work resembles applying paint to ordinary surfaces ().

Here it is important to perform the preparation with high quality and apply a thin layer of the coating. For more information on this topic, see the video in this article.

Despite the popularity of finishing stoves with ceramic tiles, brick heaters are also often painted. This is due to the variety of tasks that can be solved by painting the surface of the heater, if you choose the right paint composition.

There are enough high-tech materials for painting brick ovens today. In addition, solutions made independently according to old recipes, whose age is measured in centuries, are still successfully used.

In order for the result of painting the heating unit to be successful and to last as long as possible, we will take a closer look at industrial-made paint and varnish compositions, combined according to their characteristics into the “paint for stoves and fireplaces” group.

Options for decorating brick ovens with staining

Functions of the paint coating of a brick heater

Painting of a stone heating device is carried out for the following purposes:

• protection of the stove surface from absorbing dirt, and clothing from brick dust in contact with brickwork;
• facilitation of daily care, that is, maintaining the necessary sanitary and aesthetic condition;
• increasing the class of decorative design of the unit;
• adaptation of the design of the heating device to the existing interior.

Brick heaters coated with colorless heat-resistant varnish

If the bricklaying is done without sorting the stone by color, then painting the body with heat-resistant paintwork materials (paintwork material) of one or more colors will correct the situation. But, even a stove finished with facing bricks is transformed after applying, for example, a colorless paintwork that gives richness and a matte finish to the masonry.

Requirements for oven paints

The main factor determining the requirements for paints and varnishes for furnace devices is their operation at high temperatures.

Important! The temperature ranges after heating are different for various elements of the heater (brick, cast-iron devices in contact with it, steel furnace body) are different. At the same time, thermal paint for furnaces that can withstand the operating temperature of the metal elements of the unit, due to other characteristics (elasticity, adhesion), is often not suitable for application to a brick body, which heats up much less.

Brick heaters: on the left - without painting, on the right - painted.

According to the degree of resistance to high temperatures, paint and varnish coatings are divided (in descending direction) into fire-resistant, heat-resistant and heat-resistant .

Refractory protective paint for furnaces is used to protect metal components of industrial units from corrosion when exposed to an open flame, aggressive combustion products and withstand temperatures up to 1800 0 C. Such materials are expensive, but in everyday life they are not widely used for another reason - their high potential for heat resistance when used in devices for home heating remains unclaimed.

Heat resistant paint for household ovens is used to coat metal parts of brick heaters and furnace bodies made of steel. The temperature range for the use of heat-resistant coatings, depending on the variety, is 600 - 1000 0 С.

To paint the stone bodies of stove heaters and chimneys (brick, mortar), heat-resistant paint for stoves and fireplaces is used, intended for application on surfaces whose operating temperature is 200-400 0 C. In addition to paints, this subgroup also includes varnishes with heat resistance 250-450 0 С.

Heat-resistant coatings in order of increasing resistance to temperature - from left to right.

On a note. With high temperature paints for fireplaces and stovesfire retardants should not be confused, with a similar name having a different purpose - protecting the base covered by them from fire from the outside.

In addition to high temperature resistance, heat resistant paint for furnace bricks must also have other characteristics:

• safety - when heated, do not emit harmful substances into the air;
• sufficient thermal conductivity - do not interfere with heat exchange between the furnace surface and air;
• resistance to household chemicals - maintain physical properties and aesthetics after repeated daily care procedures;
• elasticity - do not form cracks during temperature changes;
• hiding power - provide a uniform coating when applying no more than three layers.

Types of paints and varnishes for brick oven bodies

The range of heat-resistant paint compositions offered today by domestic and foreign manufacturers is wide enough to satisfy the consumer's need in any situation - whether to give the heater brick a different color that fits optimally into the interior, or create a transparent protective layer, while maintaining the natural appearance of the masonry. If the surface of the unit is plastered, the painting technology is different, but a heat-resistant coating also exists for this type of finish. Which paint or varnish to use depends on the chosen solution to the issue of aesthetics of the unit.

Fragments of brickwork, painted in various ways

Let us consider these groups in more detail on the example of specific heat-resistant coatings.

Silicone compounds

These solutions are high-quality mixtures (paints, enamels, varnishes) made on the basis of organic resins and used, depending on the characteristics, both for exterior finishing work (building facades) and for painting interior interior elements, including stoves and fireplaces.

Used to cover brick ovens heat-resistant organosilicon solutions (not to be confused with moderately heat resistant paint used for exterior finishing works and withstanding temperatures up to 100 0 C).

Finishing the brick body of the heater with organosilicon compounds is a widespread solution due to the availability of the price range and the following advantages of the material:

• high degree of adhesion with surfaces of any texture;
• the strength of the resulting shell;
• moisture resistance;
• durability;
• high temperature resistance combined with elasticity (200-250 heating-cooling cycles).

The disadvantage of the organosilicon heat-resistant coating is the limited color gamut of this particular type of solutions, due to the chemical composition and place of application.

Organosilicon compositions for decorating brick bodies of stoves and fireplaces: paint, enamel, varnish.

Application to the base is carried out with a brush, roller or spray gun after surface preparation - dust removal and priming with a heat-resistant primer, for example, liquid glass solution, phosphor primer or G-77.

Important! The use of a brush or paint roller for painting bricks provides better adhesion of the applied composition to the base.

Compliance with the instructions for using oven paint on the packaging is the key to a high-quality and durable coating.

Heat resistant acrylic paints

This group is a dispersion (solid in liquid) paints and varnishes from acrylates, made on a water or hydrocarbon basis.

Both of these types of acrylic mixtures are suitable for painting or a fireplace, but in everyday life water-dispersion paints are more often used, calculated, depending on the variety, for an operating temperature of 200 - 400 0 C.

Water-dispersion acrylic paints for stoves and fireplaces

These heat-resistant coatings penetrate deeply into the pores of the base to be coated and create a strong film on it, which led to their classification as enamels.

They are applied to the surface with a brush, paint roller or spray gun after thorough mixing and adding water to the desired consistency, the required number of layers is two, the drying time of each layer is from 24 hours, there are no smells during painting.

Water-dispersion acrylic paint for painting brick bodies of stoves and fireplaces

The color range of acrylic paints is wide, but rich tones are absent, and the effect of the addition of tinting compounds is short-lived.

On a note. The brick surfaces of heaters can also be coated with a conventional, non-heat-resistant acrylic emulsion, but the durability of such a finish is not high - about one year.

Alkyd emulsions

The root "alkyd" of these coatings is formed by the merging of two definitions: alcohol and acid (acid).

The mandatory composition of these emulsion (liquid in liquid) paints includes alkyd varnish, dye and solvent, usually white spirit. Depending on the type of paintwork materials, marble or granite dust, antifungal and fire-fighting additives may be present in the solution.

Juiciness of colors of alkyd paint solutions

Alkyd emulsion can be used to coat brick heater bodies if the surface temperature does not rise above 100 0 C. These coatings will please with a variety and richness of colors, but the solution film that has hardened after application is much less elastic than that of acrylic compositions, therefore it does not withstand thermal expansion of the base and to at the end of the year of operation is covered with a web of small cracks, requiring replacement of the finish.

Important! When working with alkyd paints that have a strong solvent odor, it is necessary to use personal respiratory protection and ventilate the room.

The heat resistance of alkyd paints is increased by adding aluminum powder to them, but such compositions are unsuitable for painting bricks.

A good visual result, fixing the content of this article, will be this video:

Conclusion

The paints and varnishes listed above for stoves and fireplaces are far from the entire list of heat-resistant paints. Moreover, each group includes several varieties of solutions that differ in characteristics and method of application.

In addition, if for some reason it is not possible to purchase paint for a brick oven, you can use the recipes for the independent manufacture of such coatings - they are known to many owners of brick heaters.

The main essence of the article

1. Heat-resistant paints for brick bodies of stoves and fireplaces are used not only to improve the aesthetics of heaters, but also for protective purposes.
2. When choosing a paint for oven bricks, it is necessary to decide on the intended goal, that is, what is planned to be done, in addition to protecting the base - changing the finish of the heater or emphasizing the high-quality cladding.
3. When planning to paint a brick heating device, you need to know the basic properties of the coatings offered by manufacturers, so as not to be disappointed with the unexpectedly short service life of the coating.
4. There is an alternative to a wide range of heat-resistant paints and varnishes - self-made materials, which are often not inferior in functionality to industrial-made solutions.