In different areas, color-coated sheets with the same amount of hot-dip galvanizing are used. Polyester is the architectural coating that is in high demand at this stage. Its performance is normal, its strength and ductility are good, and its price is moderate. Silicon-modified polyester has high performance, gloss, and color tone retention, but its ductility is slightly reduced, and high aging-resistant polyester is cost-effective. Polyvinylidene fluoride has excellent performance and good ductility, but it has low strength, less color tone and high price. The paint of color-coated coil is mainly based on the main purpose, the application of natural environment corrosion, the service life, the performance, the production and processing method, and the deformation level hazard.