Metal, which appeared in the 60s of the 20th century in Finland, quickly gained recognition all over the globe, including from the beginning of the 1990s, and in the Russian Federation due to its high consumer characteristics such as resistance to mechanical stresses and loads, chemical resistance to aggressive environments and precipitation, ease of installation, ease, resistance to high and low temperatures, manufacturability, durability, resistance to ultraviolet radiation, biological stability. Among the most widespread of polymer coatings used in the manufacture of metal, has the meaning of the following: polyester mat, pural, plastisol, polyester. Plastisol – one of the most resistant to weathering and mechanical damage the polymer coating thickness, typically 200 microns, consisting of PVC with the addition of plasticizers. Due to the thickness of its surface pattern is applied to simulate skin texture, shaded, Maroon notch. For all that, because of the low temperature stability and low resistance to ultraviolet radiation, metal coated with this is not recommended for roofing in the southern regions. (Source: A. F. Chief of Staff ). For all that, plastisol has a high corrosion resistance, which creates additional resistance to mechanical and chemical influences.
Physical and chemical characteristics – max. Temperature: 60 degrees, excellent corrosion resistance, min. processing temperature: -10 degrees Celsius, a good formability. Polyester – the most common and inexpensive coating based on the polyester. Of the positive qualities of polyester is to provide such as polyester has good color stability, long-tested operation in Russian conditions, suitable for all climatic zones. For all that, the thickness of the protective polymer layer of polyester is about 25 microns, and therefore it has less mechanical resistance than other polymer coating, which obviously requires careful handling during delivery as well as installation.