Heat-resistant varnish - characteristics, properties of the composition

Heat-resistant varnish - characteristics, properties of the composition Heat-resistant varnish for fireplaces and stoves - features of the product

Increasingly, owners of private houses are trying to acquire fireplaces , which are justly considered one of the most basic attributes for creating coziness in a private house. They are installed not only in order to heat and create a comfortable microclimate in the room, but also as an element of interior decor. With this in mind, the appearance of such a structure must necessarily correspond to the design style, as well as all existing rules for design. For this reason, very often additional paints and varnishes are used for laying bricks, which will help to improve its appearance.

At the moment, several types of special heat-resistant varnishes for fireplaces are being industrially produced, which make this decorative and functional element of the interior more stable and elastic.

Basically they are made on the basis of organosilicon material.

Since the varnish is colorless, it is allowed to change its shades, if desired, by adding a special color scheme based on water. To know in detail what a heat-resistant varnish for stoves and fireplaces is, and whether it is possible to prepare it yourself, you should definitely understand the characteristics.

Scope of use

Thermally stable varnish compositions are used to cover other parts and interior elements, as well as the exterior of the building:

  • Stone and brickwork in fireplaces, stoves, walls and house facades, as well as fences.
  • Metal elements of fireplaces and stoves.

  • Wood trim elements.
  • Natural finishing materials for walls and fireplaces - plaster, stone, as well as ceramic tiles.

Lacquer, in addition to the fireplace, can cover other finishing elements in the room. From such a list, we can conclude that such varnish products are simply necessary for fireplaces, as well as stoves, and their price is negligible compared to the benefits.


The main characteristics of a fireplace varnish

As a rule, a varnish composition of a resin of organosilicon origin, which is a solution in a solvent, and has special functional additives, characteristic aroma and consistency transparency.

Typically such a composition is applied in a couple of layers, and its consumption will depend on the porosity of the material to be coated. The drying time for each layer is 30-50 minutes, and the temperature should be from +18 to +25 degrees. The lacquer composition, which is used to cover overheated surfaces and used in special operating conditions, has the following main characteristics:

  1. Heat-resistant varnish - characteristics, properties of the composition The composition of the varnish will withstand thermal types of changes and can withstand the highest temperatures up to + 200 ...

    + 250 degrees.

  2. The lacquer composition helps protect surfaces from moisture, as well as corrosive substances such as salt solutions, petroleum products and industrial oils. When bricks coated with such varnish come into contact with the masonry, these substances cannot be absorbed by the furnaces into porous materials.
  3. Buildings that are without shelter, under the open sky, for example, barbecue fireplaces, become more resistant to external destructive factors. The lacquer composition is intended for both indoor and outdoor types of work, and strengthens the protective masonry, as well as metal structural elements.

  4. This varnish dries quickly and is therefore very often added to alkyd and acrylic varnishes.
  5. It is moisture resistant and does not allow atmospheric moisture to enter the surface of the walls of the structure, and this, as a result, does not create favorable conditions for the development of mold, fungal colonies, and even efflorescence.
  6. The composition penetrates deeply into the material, because it has a high degree of adhesion resistance.
  7. The chimney structure, which is coated with a special varnish, has a beautiful shine, and also contributes to the disclosure of color saturation.

What conditions are needed for the work.

Conditions for work

In order for the heat-resistant varnish to fit well and adhere to the surface, certain conditions for preparation for its application should be prepared:

  • In theory, the varnish composition is not afraid of frost at all, and it can be applied at temperatures from -40 to +40 degrees. Conditions from +15 to +20 degrees will become optimal.
  • The composition should be thoroughly mixed before use.
  • The surface of the walls should be free from dust, dried and treated with degreasing agents.
  • Varnish can be applied using a brush or roller, spray.

    Small decorative items can be dipped in a container of varnish.

  • If very porous surfaces are to be covered, they should be applied not in two, but even in three or more layers.
  • The lacquer composition perfectly fits on the details of a metal or fireplace stove - they can cover doors, cooking surfaces, and also forged decorative elements.
  • Before use, the composition will be stored in a fireproof and cool place, out of direct sunlight, in a standard container in an upright position.

Please note that the work should be done carefully.

Precautions during work

To avoid unpleasant consequences, you should follow the rules for personal safety in the work :

  • Eyes and hands should be protected from contact with varnish, and for this use glasses and gloves.
  • If, nevertheless, the composition accidentally gets on the skin or eyes, rinse them immediately with plenty of clean cool water and soap.
  • Do not work with any kind of varnish if there is an open source of fire nearby. It should also be stored away from flammable places.
  • The room in which the varnishing work will be carried out must be well ventilated or have excellent ventilation.

  • Do not pour the remaining varnish through the drain after opening.
  • To avoid inhalation of varnish vapors, the nose and mouth should be protected with a respirator.
  • In the event of an unexpected fire, sand or foam fire extinguishers are used to extinguish, and therefore, when starting work, keep everything close at hand.

Varnish products - which of them are the most popular?

The most popular varieties of varnish

Heat-resistant varnish - characteristics, properties of the composition One of the most popular heat-resistant varnishes for fireplaces is KO-85. This is one of the most common thermally stable organosilicon varnishes, which are used to cover the brickwork of a fireplace, its metal parts (chimney, doors, or the entire stove, if it is steel or has a metal lining).

This varnish is thermally stable, has excellent adhesion to the covered surface, as well as high anti-corrosion properties. It will refresh the color of the material and give it a special degree of aesthetics. The varnish composition can be combined with enamel paints of the KO-174 and KO-8101 type, and the thermal stability of the varnish will vary from -40 to +300 degrees.

KO-815 is a kind of organosilicon varnish composition that can be used to cover bricks, ceramics and metal. It is used not only for the inner walls of fireplaces and bricks, but also for stone and metal fences.

The varnish will give the surface not only decorativeness, but also hydrophobicity and resistance to frost. There are varnish compositions that have other names, but in general, they have the same properties and scope. Before buying, it is important to study in detail the instructions for using the composition.

We make varnish with our own hands

Mantel varnish can be bought in a hardware store, or you can do it yourself. A hand-made product is practically not able to differ from a store product, if you follow the technology of its manufacture.

This requires 0.45 kg of high quality wood tar, which is heated without letting it boil. After that, 30 grams of pre-pounded copper sulfate should be added to it into a powder state, and also mix well. The finished lacquer composition in a non-cooled state is applied to a hot fireplace using paint brushes. A self-made varnish will dry out extremely quickly, it is harmless, and gives brick surfaces a shine, and also strengthens the oven walls.

For more information on how to prepare a thermally stable varnish composition for a fireplace using the old recipe, you can learn about this by watching the attached video tutorial.If you want to keep the details and surfaces of the fireplace or stove in their original form for a long time, then at the end of installation work and complete drying, immediately cover the walls and all elements with a thermally stable varnish. You will not only receive excellent protection of the furnace structure, but also add decorativeness and brightness to the brickwork.