If you made a brazier or purchased it in a store, then sooner or later you will be faced with the question of which paint to choose for protection. If the steel structure is operated outdoors, it will be constantly exposed to fire and atmospheric conditions. If you do not protect the surface, then it will rust quickly enough.
Composition Requirements
The paint must meet certain requirements, it protects the structure when exposed to temperature, humidity and precipitation. It is important to purchase a paint that will have the qualities of refractoriness and will not melt when exposed to fire. Among other things, the composition should not emit harmful substances, as for the stage of application and operation. Heat-resistant mixtures can withstand temperatures up to 800 °. Application is quite simple, such paints, as a rule, are harmless to health, you can paint with them not only the outer, but also the inner surface of the product.
Varieties of heat-resistant paints
Barbecue paint can belong to one of several varieties. Having visited the store, you can find enamel coatings that are available under the markings KO 8101 or KO 8111. On sale you can find heat-resistant paints of the KO / 08 and KO / 815 brands, as well as organosilicate composition, among the latter OS 12/03 can be distinguished. A reasonably popular solution because of its economy is the heat-resistant varnish KO-85. But it has one drawback, which is expressed in the possible appearance of cracks when exposed to low temperatures. You can choose persistent impregnation, which contains various oils that cope well with low temperatures. However, it is worthwhile to be prepared for the fact that such impregnation requires the need for periodic updates. If you choose a paint for barbecue, one of which was described above, then it will be able to withstand temperatures up to 500 °. In composition, such mixtures are resistant to high humidity and protect the metal from destruction.
Acrylic paints
Acrylic heat-resistant paint for barbecues is more popular for the reason that it is ready to undergo temperatures up to 650 ° C. During operation, the layer can be affected for a short time by temperatures up to 800 ° C. In this group of products aerosol cans are in the lead, the main advantage of which is quick drying. It is important to remember that such paint should be stored under the conditions recommended by the manufacturer, otherwise it may dry for a long time after application.
If you will use acrylic paint for barbecue, then before applying it you do not need to prime the surface, but do not forget about the treatment of areas that were subject to corrosion. The formed layer will persistently undergo the effects of salts and oils. Having familiarized with the assortment, you can choose heat-resistant paint for metal for barbecue of different colors. The most popular of them are: black, gray, brown, as well as silver.
Overview of the features of heat-resistant powder paints
Powder formulations are distinguished by application technology. Dry paint should be sprayed onto the surface and then exposed to high temperature. At the time of sintering, the composition acquires the required operational qualities, including heat resistance. An example would be powder paint grade S54, which is made on the basis of silicone. This composition is specially designed to protect the surfaces of stoves, barbecue and barbecue facilities at home. But in everyday life it will be difficult to use it, since the use of a high-temperature drying chamber will be required.
Classification of heat-resistant paints
If you need paint for barbecue, then you should understand the classification of these compounds. They are conditionally divided into categories, among them: areas of use, temperature, composition, and other factors. For example, for domestic use, compounds are used that are designed to work at a temperature range in the range from 80 to 100 ° C. They can be performed on acrylic or alkyd resin. With their help, it will be possible to form a monolithic protective layer. If we are talking about temperature conditions ranging from 100 to 120 ° C, it is best to prefer paint based on epoxy resin. On sale you can find one-component paints that are intended for use at temperatures from 200 to 400 ° C. Among the ingredients are epoxy resin and ethyl silicate. For a temperature range that reaches 750 ° C, it is best to use the mixture in cylinders in the form of sprays. For conditions where the temperature rises above 700 ° C, it is better to use mixtures based on silicone resin.
Labeling details
Heat-resistant paint for barbecue should be marked with an alphanumeric designation. If you saw two letters "KO", then this indicates that before you paint based on an organosilicon binder. After the letter are numbers, the first of which indicates the purpose. Thus, the figure eight indicates heat resistance. The second and all subsequent digits indicate the development catalog number. Before purchasing, it is recommended that you familiarize yourself with the purpose of the composition. Thus, KO-811 is used for aluminum, steel, titanium surfaces that need protection against corrosion. These enamels are good in that their application is allowed at low temperatures. As a result, it is possible to obtain a coating that is environmentally friendly, heat and moisture resistant, as well as resistant to alternating heating and sudden cooling. When the temperature rises, the coating gains even higher strength properties.
KO-813 is a composition that is used for the protective painting of metal surfaces exposed to temperatures ranging from 60 to 500 ° C. It is noteworthy that this heat-resistant paint for barbecue has anti-corrosion characteristics, is not at all afraid of high humidity and sudden temperature fluctuations. If it is necessary to protect surfaces that are exposed to temperatures of up to 400 ° C during operation, select KO-814. The resulting coating has a high resistance to salt solutions, petroleum products and mineral oils. This composition is universal, since it can also be used for coloring steam pipelines with hot steam. KO-8111 is a mixture with which you can paint metal structures heated to 600 ° C. It is resistant to aggressive environments.
What to prefer - enamel or paint
If you still have not decided which paint to grill, then you can consider the quality of enamels and paints. After applying the first on the surface, an opaque solid film is formed, which is able to protect from high humidity, but not from exposure to open flame. When comparing heat-resistant enamels and paints, it should be mentioned that the former are more flexible, have high decorative properties, create a more durable coating, and their application is allowed even at subzero temperatures. However, the paint for the barbecue (1000 degrees) will not burn if it is directly affected by the flame, which cannot be said about enamels.
Conclusion
Metal paint for barbecue should also be selected by the manufacturer. For example, Thermica has been manufacturing similar formulations since 2007. The products of this supplier are confirmed by certificates, and the approximate cost is 142 rubles. per kilogram.
You can choose a heat-resistant paint for metal for the barbecue brand Dufa, which costs more - from 400 rubles, but allows you to smoothly distribute high temperatures on the painted surface, excluding overheating. The advantage of enamels is the absence of aromatic carbohydrates, which allows the use of the composition indoors.