Pre Painted Roofing Sheets refers to color-coated steel. Pre Painted Roofing Sheets is a kind of steel plate with organic coating. It has the advantages of good corrosion resistance, bright color, beautiful appearance, convenient processing and forming, and has the original strength of the steel plate, and the cost is low. Features.
The traditional coatings are divided into several categories, the most high-grade is the fluorocarbon coating, which can be anticorrosion for almost 20 years. It is generally distributed from steel mills to various places in the form of reels. The color steel plate we often see refers to the processed plate with a thickness of about 50~100mm. It is composed of the filler in the middle and the color steel plate on both sides. Among them, the thickness of the color plate has different thicknesses such as 0.4mm, 0.5mm, 0.6mm, and the middle layer can be polyurethane, rock wool or foamed plastic. Because of the special profile, the factory building constructed with color steel plate is fast in construction (such as Xiaotangshan Hospital during SARS), but the strength is low. The substrates of color-coated steel sheets are cold-rolled substrates, hot-dip galvanized substrates and electro-galvanized substrates. Coating types can be divided into polyester, silicon modified polyester, polyvinylidene fluoride and plastisol. The surface state of color-coated steel plates can be divided into coated plates, embossed plates and printed plates.
Color-coated steel plates are widely used in construction, home appliances and transportation industries. For the construction industry, they are mainly used for the roofs, walls and doors of industrial and commercial buildings such as steel-structure workshops, airports, warehouses, and refrigeration. Civil buildings use less color steel plates.
Corrugated board is also called pressure plate, the use of color coated steel plate, galvanized plate and other metal plate by rolling cold bending into a variety of wave type pressure plate, it is suitable for industrial and civil buildings, warehouses, special buildings, large-span steel structure of the roof, wall and interior and exterior wall decoration. With light weight, high strength, rich color, convenient construction, seismic, fire, rain, long life, maintenance-free and other characteristics, has been widely used.