2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16
Among the variety of varnishes, bituminous occupies a special place. A few years ago, its use drastically declined. It was mainly used for processing car parts. But more recently, a fashionable trend in interior design has appeared - artificial aging. And the demand for bituminous varnish has increased again.
Production Features
This tool is based on bitumen. But to give the solution certain technical characteristics (for example, plasticity, heat resistance), resins are added. They are of two types: synthetic and natural. The latter includes the well-known rosin. Among artificial resins, such resins as copals can be distinguished. During the manufacturing process, the mixture is heated to high temperatures (280 degrees), and then cooled and solvents are added. Previously, turpentine was most often used, today, in addition to it, solvent, white spirit, or a mixture of these components can be used. However, bituminous varnish is also based on oils. As a rule, linen or tung is used for this purpose. S alts of fatty acids are added to them - manganese, cob alt, lead. So andget a bituminous varnish. Buying it today is easy.
Bituminous varnish: specifications
The use of bituminous varnish is due to its technical characteristics. Among them are the following:
- plasticity;
- resistance to high temperatures and many chemicals;
- moisture resistance.
There is an opinion that bituminous varnish has anti-corrosion properties, which is why it is used to protect metal products. In fact this is not true. Under the influence of atmospheric agents, it can only protect against rust for a while. Therefore, it processes those products that need to be protected for a short period of time - 6 months, if the treatment is done with a single layer of varnish. The use of this tool for this purpose is largely due to the fact that it has a low cost.
Bitumen varnish has many varieties. The classification is based on the main properties of the compositions. To date, bituminous varnish BT-123 is in demand, the characteristics of which allow it to be used not only as a protective agent for metal and non-metal structures. Often this composition is used for the manufacture of aluminum paint. At the same time, special auxiliary substances are also added that speed up the drying process.
Bitumen varnish in design
The effect of aging -a distinctive detail of modern country houses. And in this bituminous varnish acts as the main assistant. It is applied to the surface either with a regular brush or with a sprayer. The thinner the layers, the better the result will be. When creating the effect of aging on top of the varnish, it is recommended to apply a shellac coating. As a rule, bituminous varnish is used for processing external structures - fences, stairs, fences. It should be remembered that it is impossible to use this product near the fire.
Bitumen lacquer rightfully regained its leading position among its film counterparts today.
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