Electrophoretic coating is a painting method that utilizes an external electric field to direct the migration and deposition of particles such as pigments and resins suspended in an electrophoretic liquid onto the surface of one of the substrates.

The principle of electrophoresis painting was invented by the late 1930s, but its development and industrial application did not occur until after 1963. Electrophoresis painting is a special coating formation method that has developed over the past 30 years, and it represents a practical construction technique for water-based coatings.

Water-soluble, non-toxic, and easy to automate, it has rapidly gained widespread application in industries such as automotive, construction materials, hardware, and home appliances.