Galvanized coil has light weight, beautiful appearance, and good anti-corrosion performance, and can be directly processed. It provides a new type of raw material to the construction industry, shipbuilding industry, vehicle manufacturing industry, furniture industry, electrical industry, etc. Wood, efficient construction, energy conservation, pollution prevention, and other good effects. Color-coated steel sheet using galvanized steel as the substrate, in addition to zinc protection, the organic coating on the zinc layer serves as a cover and isolation, which can prevent the steel plate from rusting and has a longer service life than galvanized steel. According to the coating, The service life of the steel sheet is 50% longer than that of the galvanized steel sheet.
Galvanized Steel coils in different regions and different places of use, with the same amount of galvanization, the same coating, the same coating thickness of the color coating board, the service life will be very different. For example, in industrial areas or coastal areas, due to the effect of sulfur dioxide gas or salt in the air, the corrosion rate is accelerated, and the service life is affected.
In the rainy season, the coating is wet by rain for a long period of time, or in places where the temperature difference between day and night is too large, and it will be corroded quickly, and the service life will be reduced. Buildings or workshops made of galvanized steel roll often have a long service life when they are often washed by rain, otherwise, they will be affected by the effects of sulfur dioxide gas, salt and dust.
