Metal structures – an important component of supporting bases, partitions of any buildings. Therefore, special attention should be paid to the issue of their fire protection. There are several methods to protect metal structures from exposure to very high temperatures. One of the most technological and advanced is painting metal structures by swelling thin -layer compounds.
The fireproof swelling of the colors contains polymer intelligent substance, as well as various fillers. During heating around the metal structure, the paint is decorated. With the absorption of heat, pairs and inert gases begin to release, which replace oxygen and block the transfer of heat to the surface. This allows you to reduce combustion processes. A foamed layer characterized by a small conductivity of heat, in this case acts as a heat -shielding screen, which prevents the heating of the structure.
As a rule, staining of metal structures takes place in several consistent stages, and work should be carried out with thorough observance of all technologies. Before starting painting, you need to carefully prepare the surface of the metal structure. Experts recommend washing it ABD or with special detergents based on alkali and acids. The next step is to clean the surface from rust and old peeling paint. This can be done with a special tool or manually. Before the direct application of the primer, the metal structure is best to degrease. If the new paint is applied on top of the old, then it is recommended to polish the surface. This will provide excellent adhesion and will allow the composition to better connect with the design.
Only after that can you begin the priming process. The applied primer layer will protect the structure from corrosion, as well as leve the top layer of paint. It is necessary to choose the appropriate primerial composition, taking into account the purpose of the structure, its condition, environmental conditions and other factors. The final stage in which fire protection is directly created – the application of paint. It is not recommended to paint the entire surface at once, it is best to carry out a trial test in a small area. Suitable coloring methods are selected taking into account the size and functions of the structure.
