Painting is a surface finishing process that uses compressed air to atomize and spray paint onto the surface of an object to form a uniform and smooth coating on metal, plastic, wood and other materials for the pupose of providing protection, decoration or special functions (such as anti-corrosion, anti-rust, wear resistance, etc.)..
Painting is widely used in various industrial and civil fields, including surface treatment of automobiles, furniture, construction, metal products, etc.
High machinability and ductility, good strength-to-weight ratio. Aluminum alloys have good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance.