Coating

Name:
Coating
Detailed information:
A film or thin layer applied to a base material, called a substrate. The coatings most commonly used in industry are metals, alloys, resin solutions, and solid-liquid suspensions on various substrates (metals, plastics, wood, paper, leather, etc.). They may be applied by electrolysis, vapor deposition, vacuum evaporation, or mechanical means such as brushing, spraying, calendering, and roller coating. Products such as cables and power cord are coated by extrusion. Such thermosetting resins as acrylics, epoxies, and polyesters appropriately compounded are available in powder form and are applied to auto bodies, machinery, and other industrial products by electrostatic spraying techniques. This process is claimed to minimize the pollution problems and waste encountered with solvent-based sprayed coatings.See Protective Coating; Film; Paint; Vacuum Deposition.