Why is it called polymer painting?
Polymer coating is the scientific name for the powder coating process, as the resulting coating is created through the formation of a high molecular substance "polymer" through repeated attachment of low molecular weight molecules to active centers in a growing polymer molecule, i.e. polymerisation words
What equipment is required for the powder coating process?
The list of tools required varies depending on the methods and the scope of work, but a list of the most important can be distinguished:
● Spray booth - allows you to create comfortable and correct conditions for high-quality painting of metal structures, avoiding external influences. The chamber is also equipped with a "recuperator" that collects paint residue so that it can be reused. The paint residues collected by the "recuperator" are then filtered; the use of a special camera will not only achieve the best quality of paint application, but also reduce costs.
● Spray gun (paint sprayers, spray gun) - there are 2 types of spray guns for different work volumes: manual and industrial. There is also an alternative version of the compressor that is equipped with a high pressure filter.
● Polymerization Oven - Allows all applied paint particles to be melted. It can have different dimensions so that you can accommodate different product volumes.
How many steps does the powder coating process involve?
First stage
● In order to ensure a uniform and high-quality coating, all impurities are first removed from the metal, degreased and treated with a special composition - phosphating - to increase wear resistance and anti-corrosion properties.
Second phase
● In the next stage, after the surface treatment, powder spray chambers are used, in which the paint is sprayed evenly by special equipment.
Level three
● Heat chamber generates heating and uniform maintenance of the temperature up to 200 ° C. The sprayed powder is evenly melted and sintered under the influence of temperature, creating a uniform layer that penetrates all pores and metal structures.
Fourth stage
● The last stage of powder coating is the cooling zone, in which the polymerisation of the products takes place. After the heating chamber, the temperature in this zone drops, as a result of which the coating hardens.
Can a polymer coating be harmful when applied?
Despite the fact that the coating itself is harmless to human health, it is necessary to follow safety rules when working with paint. The main threats to powder coating are:
● Dust gets into the lungs and skin
● Formation of an explosive dust-air mixture.
All threats are eliminated with the help of personal protective equipment and a high quality ventilation system, a spray chamber and a "baking chamber" as well as the mandatory high quality grounding of the equipment used.
Conclusion
The polymer coating is popular in metal structures, pos materials, engineering and construction, etc. This is because the powder coating has anti-corrosion properties that allow you to protect the material for a long time and give it an outwardly clean and beautiful aesthetic appearance. A positive criterion for the polymer coating is also the environmental friendliness in relation to the finished coating.