Prepainted corrugated sheet raw material is pre-painted steel coil which use galvanized steel or aluzinc steel as substrate. After surface pre-treatment(chemical degreasing and chemical conversion treatment), the surface coated with a layer or several layers of coating, through baking and curing, then become the finished product.
Prepainted roofing sheet has the advantages of light unit weight, high strength, good seismic performance, fast installation, beautiful appearance, etc. It is a good building material and component. It is mainly used for envelope structures, floor slabs, roof tiles, and can also be used for other structures.