Build Daily

Furnaces And Heating Systems

August 12, 2017 18:06

The heat-resistant paint oven

Any heating facility, located in a residential area, should look the general interior, and requires periodic bring it into order.The heat-resistant paint for the furnace or fireplace is designed exactly for this purpose - such compositions and coated metal surfaces, and brick walls.And if the surface of the furnace does not require frequent restoration, the iron and steel elements, such as doors, fireplace grates, reinforcing strips and valves, it is necessary to clean up regularly.

The heat-resistant paint oven

heat-resistant paint oven

staining or coating Coating of the surfaces is carried out not only to maintain the aesthetic appearance, but also to maximize the life of the whole construction of the furnace or fireplace and its individual parts.Therefore, if the house is set to any solid fuel appliance, it is necessary to know which formulations are used for heat-resistant surface treatment.

General concepts of heat-resistant paints

Article Contents

  • 1 General concepts of heat-resistant paints
    • 1.1 Why buy heat-resistant paint it?
    • 1.2 Basic requirements for paints for stoves and fireplaces
  • 2 Features heat-resistant paints
    • 2.1 enamel KO-8101
    • 2.2 enamel KO-811
    • 2.3 enamel KO-168
    • 2.4 enamel KO-813 and KO-814
    • 2.5 resistant paint «Tikkurila»
    • 2.6 Enamel «concerts»
    • 2.7 Painting «NEW TON»
    • 2.8 Video: aerosolheat-resistant paint «Bosny Plus»

to paint applied to the surface for a long time do not lose their original properties under high temperature, heat-resistant paints are produced by special technology.It is composed of protective components that make processed brick wall furnaces or fireplaces, and even placed outside barbecue facilities, able to withstand the aggressive external factors, such as moisture, precipitation, dirt and dust.a layer that can protect them, among other things, also on the corrosive oxidation processes on the metal elements.

The heat-resistant paint in aerosol packaging

heat-resistant paint in aerosol packaging

Nearly all formulations for coating stoves and fireplaces are made in the form of suspensions, based on the heat-resistant coatings containing silicon and silicon.

As mentioned above, subject to painting all the parts of the structure, but for small metal components and large surfaces made special types of paints are designed for extremely high temperatures.Such compositions are suitable not only for the ovens, but also for barbecues, where the metal is experiencing the greatest impact of contact with an open flame.

Cast iron oven door , colored thermal compound

Cast iron oven door, colored thermal compound

Other heat-resistant paint made specifically for the treatment of surfaces made of bricks or stone-built.

Formulations for coloring materials to the heater should withstand temperatures not less than 350 ÷ 400 degrees.Thus, even when burning plain paper on its surface temperature is + 380 ÷ 400 degrees by vigorous flame from the combustion of firewood it reaches + 400 ÷ 450 ° C.But when using coal as fuel, its phase flameless combustion, is created on the surface temperature reaching to + 900 ÷ 1000 degrees.

course, external heaters are heated surface is much smaller than the furnace, but in any case should be chosen heat-resistant paint, can withstand from 400 to 550 degrees of heating.

Most producers made formulations for different purposes, and on the packaging indicates the temperature settings, allowing you to select or metal elements, or brick oven surfaces.

Why buy heat-resistant paint it?

should be noted that heat-resistant paint always have a high enough price, and, wanting to save money, some owners are trying to use the oven for painting its metal parts, oil, paint or enamel paints, water-based.However, you must know how to behave these compounds when heated:

For extreme temperature operating conditions conventional paints are unsuitable

for extreme temperature operating conditions, conventional paints are unsuitable

- for example, oil paint made on the basis of drying oil, will first be softened, and at very high temperatures will start to burn.Well, the bad smell from it will come anyway.

- Plain enamel will dry up, lose elasticity and therefore, crack, while also emitting an unpleasant "aroma".

- The paint is water-based, applying a thick layer by evaporation of moisture from it quickly cracked and osypletsya and covered with a thin layer of fine mesh cracks.

After two or three protopok stove or fireplace, conventional paint will change color and acquire an unpleasant yellowness.In addition, we must remember that inside they will adversely affect the rust, "eating" the paint and appearing outside.These colors do not protect the heated surface, and may even harm the not only the walls and parts of the furnace, but the health of the people who will breathe the acrid fumes.

In addition, such a coating nearly enough even for one heating season and then paint on the metal, and it is possible that on the bricks will remain areas that will be difficult to remove because of the porosity of the material.

will not be easy, but you can not paint it on top of masonry, too, to remove the oil or enamel paint, as it will still give off noxious substances and a bad influence on the updated upper layer.Have cleaned the surface with a wire brush or sander with an appropriate nozzle.

Therefore not worth the risk, otherwise the result will have to pay much more than the cost of high-quality heat-resistant paint.

Basic requirements for paints for stoves and fireplaces

choosing a heat resistant paint, you need to consider several factors:

  • stability of the composition to high temperatures.The maximum heating level is indicated on the packaging.
  • resistance to aggressive environments.
  • Consumption, ie, that amount necessary for coloring 1 m².
  • composition of a colorant.
  • Ease of application of paint.

resistant coatings formulations are divided by the base component, on the basis of which they are made:

  • acrylic.
  • silicon-containing (potassium or sodium water glass).
  • Epoxy resins.
  • Silicone.

base heat-resistant paint directly affect its performance:

themselves formulations made with an epoxy or silicone-based - not very resistant to high temperatures.Therefore, to enhance the thermal stability of the paint was added aluminum or bronze powder, after which the composition can be used at temperatures up to 400 ÷ 650 ° C.

If you want to "strengthen" the silicone paint only up to 200 ÷ 400 degrees, its composition includes polyurethane additives.

subdivided heat-resistant paint, and for their intended purpose, that is, the type of surface on which they are applied.

  • Paint for masonry surfaces.
Staining the surface of the brick kiln

staining the brick kiln surface

By heat-resistant paint used to cover the brickwork must meet the following requirements:

- resistance to temperatures reaching up to 300 degrees;

- resistance to steam and moisture, especially for furnaces installed in the bath rooms;

- resistance to cracking;

- resistance to fading.

All these qualities have silicone compositions, which include enamel KO-168, CA-8101, CA-813, and others.

Fireplace or stove can be covered with a heat-resistant transparent varnish which will retain the natural appearance of stone

fireplace or stove can be covered with a transparent heat-resistant varnish, which saves natural look of stone

for furnacesand fireplaces made of brick, set in a residential area, an important factor is the aesthetic appearance as many heating facilities also play a decorative role in interior design.

Transparent nail masonry surfaces

Clearcoat for masonry surfaces

example, fireplace or stove, decorated artificial or natural stone, which is to be stored in its original form without any color, covered with a heat-resistant transparent varnish called "invisible".

  • paint for metal surfaces.

In recent years, gaining popularity installation of steel or cast iron compact stoves and fireplaces.They do not take up much space and looks stylish and aesthetically decorate their presence to any interior.

Metal stoves and fireplaces are in need of special care

Metal stoves and fireplaces need special care

This type of devices, as well as metallic elements brick heating installations require a special approach in the selection of colors, as the metal - enough "capricious", and during the operation they canappear rust.In addition, they are very greatly enhanced at high temperatures, and can be destroyed by stray currents.Therefore, heat-resistant compositions for metal parts must have the following qualities:

- ink must withstand temperatures up to 750 degrees;

- by heating the composition does not release toxic substances and sharp odors;

- paint should be sufficiently elastic to heating and cooling, it was a "mobile" or crack;

- it is desirable that the paint has a high anti-corrosion properties that allow it to be applied on the crude rust surface without priming;

Heat-resistant paint with filling of a metal powder

resistant paint with filling of a metal powder

- resistance to the phenomena that affect the change of color - fading and yellowing;

- for stoves installed outdoors, even resistant paint is chosen and negative temperatures.

Emphasis colors, which cover the furnace located outdoors

Particular attention paint that covered by a furnace located outdoors

- resistance to aggressive external environment, since the composition is to reliably protect the metal from atmospheric moisture, water and active chemicals.

All these qualities are inherent in the heat-resistant enamel paints KO-8104, TO-811 and others.

Features heat-resistant paints

Nowadays in specialized stores put in charge of a wide range of heat-resistant paints and lacquers from different manufacturers, both domestic and foreign, with a large selection of decorative performance.The above mentioned were some of the most popular heat-resistant paint, suitable for brick and metal kiln surfaces.Now it is necessary to consider their characteristics in more detail.

  • enamel KO-8101

enamel KO-8101 - a paint that is made in the heat resistance of 400, 600, 800 degrees.It can be called universal, because it is suitable for application to various surfaces - this can be concrete, brick, metal - elements of ovens to heat sinks, as the designs are under the roof and in the open air.

The enamel KO - 8101

enamel KO-8101

recommended to choose anticorrosive colorful composition KO-8101 for metal parts - it will allow to produce coated surfaces without pre-treatment.After drying by heating the paint does not emit noxious fumes, so it could be called a safe product.

The big advantage of this ink is that it can work even at low temperatures.

Due to its high protective qualities and variety of colors, this enamel is able to satisfy the most demanding customers.Certified technology of its manufacturing allows the manufacturer to provide a guarantee for a period of 15 years.

paint KO-8101 produced by many Russian and foreign companies: "Elcon", "Termika" paint factory "SpetsEmal", "Karst" and others.All manufacturers adhere to a manufacturing technology and formulation.Only difference is the number of colors to be ended.

test of enamel held in SRI "Mosstroy" - in heat resistance, adhesion, waterproofing, and ability to corrosion resistance.

Solvents used for this paint - is toluene and xylene.

consumption structure at the surface of the three-layer coating is 120 ÷ 240 g / m².

drying coverage period at a temperature of 150 ± 2 ° C - not more than half an hour at 20 ± 2 ° C - not more than two hours.This

enamel may be applied using a spray gun, or manually - by roller or brush, in 2-3 layers with drying of each of them of from 0.5 to 2 hours, depending on the ambient temperature.

  • enamel KO-811

heat-resistant enamel KO-811 and KO-811K is intended for painting of steel and iron, and titanium surfaces, which can be heated up to 400 degrees in temperature.The paint is a suspension consisting of pigments, dissolved in the silicone varnish.

The heat-resistant enamel KO- 811

heat-resistant enamel KO-811

This composition is most often applied method of pneumatic spraying.To this enamel is diluted with the stabilizer 100: 6 for the white paint and 100: 7 for the other colors.The mixing process is performed immediately before application, and the finished composition must be used within 24 hours.

enamel is applied to the metal surface, purified from pollutants, fats, oils and water-soluble salts with acetone, the other solvent or solvents.Before applying the paint metal is wiped clean, dry cloth.

solvents used for this enamel - F-5A, toluene and xylene.The paint can be diluted: KO-811 30 ÷ 40%, KO-811K (white) 70 ÷ 80%, other colors on the 40 ÷ 50%.

Enamel consumption varies from 100 to 250 g / m² - depending on the color.

drying time of the painted surface at temperatures of 200, 150 and 20 degrees - no more than 2 hours.

This heat-resistant paint producing company "Galakolor", "Termika" NPF "Enamel" and other companies.

  • enamel KO-168

enamel KO-168 is designed for operation in a temperature up to 150 degrees, which means that in the process furnace coloring it can be applied to masonry surfaces and metal elements that are remotelyfrom the combustion chamber.Enamel performs not only protective, but also decorative function, as is done in different colors.In addition to staining of the furnace, this paint is used for facade work, and therefore perfect for finishing stoves barbecue located on the garden plots.

heat resistance qualities of the enamel KO- 168 - not so pronounced

heat resistance qualities of the enamel KO-168 - not as pronounced

Subject to the conditions for operation of the painted surfaces, the paint will be a perfect protection for any of the material from which built the oven, as the coating has a hydrophobic, water-resistant and frost-resistant properties.In addition, the paint has a high resistance to UV rays, so - enamel will keep its original color for a very long period.

enamel KO-168, too, is a suspension of pigments, fillers and special additives, mixed with the silicone lacquer.

Paint consumption depends on the selected color:

- for the red and white enamel - 150 g / m²;

- to yellow - 180 g / m²;

- to blue - 140 g / m²;

- for brown, blue, light green, beige - 130 g / m²;

- for green - 120 g / m²;

- for black - 80 g / m².

enamel KO-168 are manufactured in ready to use form.If necessary, it is used to dilute the solvents toluene or xylene.

enamel drying time at 20 ± 2 ° C - about a day.If

painted metal surface, it must clean up of various contaminants and degrease - as xylene, solvent or acetone, and then the surface wiped dry.