Using paints, resins and variety of coatings is significant in different industries and pieces is significant for certain purposes, such as beauty, wear and corrosion resistance, or the enhancement of optical properties and conductivity and other properties. One of the most important applications of paints and resins is the coating of the body, the plant and the cabin of the aircraft. Proper chemical resistance, resistance to sagging, toughness, adequate strength, and resistance to thermal shock and ultraviolet radiation and acidic rain, are properties of the paints employed in the aircraft body coating. Polyurethane paint is a two-component product based on polyurethane resin and has a very short drying time. Its anti-varnishing properties makes the paint more stable after applying on angular and curved metal surfaces and prevents sagging. Nowadays, using nanoparticles to improve the viscosity and anti-sagging behavior of paint on the body is an important way to improve the quality of aircraft coverage.