This paper introduced the principle of the metal spray coating technique and its application of manufacturing RIM polyurethane foaming model with a satisfactory result.

Apply paint or other materials, such as stains, lacquer, enamel, oil, varnish, fibreglass, metal coating or fire retardant using brushes, rollers or spray equipment.

Sand or grind metal surfaces to prepare for coating, and paint metal surfaces using electrostatic method, spray gun or other painting equipment.