Coated steel sheets are suitable for many fields, including construction, home appliances and transportation. In the field of construction, because of its light weight, aesthetics and corrosive properties, the coated steel sheet is used to build the roofs and walls of industrial and commercial buildings such as steel structure workshops, warehouses, and freezers. In the field of home appliances, film-coated steel sheets are used to produce the surface of home appliances such as refrigerators, water heaters, and washing machines because of their beautiful appearance. In terms of transportation, film-coated steel sheets are used in the production and processing of walls such as ships and automotive interior parts.
When buying coated steel sheets, many people do not know the specific difference between a really good sheet and a poor sheet, because the surfaces are similar, and there will be no problems if they are not used for a period of time. In order to distinguish a good coated steel plate, there are many factors to be considered in the selection of the color film, which mainly include the type, thickness, color and performance of the color film. In addition, sometimes the requirements for the primer and back coating of the steel plate are also considered.
Most people in the market think that there are two complete descriptions of coated steel plates: one is thickness, and the other is color. In fact, a complete expression of a lamination product should be described from five major aspects: substrate mechanical properties (yield strength, tensile strength, elongation), coating properties (coating type, coating adhesion, coating weight), color filter properties ( film thickness, T-bend, impact, pencil hardness, salt spray resistance, durability, etc.), surface quality (defects, gloss, color, etc.), other properties (board shape, dimensional accuracy, tolerance, etc.). Different groups of people (architectural designers, owners, processors, etc.) have different understandings of this.
