The base material of PVC steel plate is generally galvanized steel plate or aluminum plate. Therefore, it has both the strength and rigidity of metal plate and the decorative and corrosion properties of plastic surface layer. In addition, it can also obtain different surface effects through embossing and printing processing. In recent years, in addition to being used in industrial buildings, PVC steel plates are also used by many foreign builders for roof panels and wall panels of residential buildings.
According to different coating processes, steel plates are divided into three types: PVC-coated steel plates, PVC-coated steel plates, and PVC-coated steel plates:
PVC coated steel plate
Polyvinyl chloride sol is used as a fine coating for color steel plates, and the dry film thickness is between -200um, while the dry film thickness of general coated steel plates is only about 20um. The polyvinyl chloride sol coating is thermoplastic. Therefore, after coating and drying, this product generally enters directly into the embossing process, making its surface rich in texture. decorative properties. In addition, PVC-coated steel sheets have good flexibility and are suitable for secondary processing, such as bending, pressing, etc., and the coating will not peel off when bent to a small angle. But it has the disadvantage of easy aging and discoloration.
PVC coated steel plate
PVC coated steel plate is also called plastic film steel plate. The pre-printed wood grain, cloth grain or leather grain of the plastic film is bonded to the steel strip by lamination. This process is used in the construction, transportation and electrical industries. It is the main product in the organic coated steel plate. . There are 4 main types of organic film materials: polyvinyl chloride, polyvinyl fluoride, thermoplastic acrylic and polyethylene terephthalate. The advantages and disadvantages of this product are basically the same as those of PVC coated steel plates
PVC composite steel plate
Because the first two kinds of steel plates have shortcomings such as easy aging, easy discoloration, and poor durability. In order to improve this situation, there is a process of coating a layer of acrylic resin coating on the PVC coated steel plate or PVC film steel plate, which relatively enhances the durability and corrosion resistance of the PVC steel plate. PVC steel sheets can also be made into sandwich panels like color profiled steel sheets for their thermal and sound insulation properties. The thickness of the insulation material is generally 15-17um polystyrene foam or rigid polyurethane foam. This foam has a closed-cell structure and has good thermal insulation properties. In the color steel plate interior decoration industry that has emerged in recent years, whether it is a coated board or a PVC coated board, it has become the main decorative material, and there are more and more shapes of profiled boards or gussets.
