Development of Pre-painted Metals and Coating Methods
Pre-painted metals are produced by continuously adding paint or film coatings to strip metals, primarily steel and aluminum. This process is called coil coating. The process involves cleaning and chemical pretreatment of the metal surface and one or both sides as necessary, single or multiple applications of (liquid) paint or coating powder, followed by curing or lamination with plastic film. The coated surface can have a wide range of colors, gloss levels and surface textures. It is the end use of the finished product that determines the coating choice. The user may require non-stick properties, high flexibility or high chemical resistance. Modern developments offer many new coating types to meet the growing needs of users. Manufacturer LITONG gives you an overview of developments in metal coating technology and paint technology. Painting metal industry There are several options for applying paint to metal. In the field, it is common to spray or brush; in the factory...