Electrophoretic Coating (E-coat)

E-coat, electrocoat, or electrophoretic coating processes use charged particles to attract paint or coating particles or molecules in an immersion bath to the surface of a submerged part. E-coating is a dip coating process in which the coating or paint solids suspended in the bath are given an electrical charge, which is then attracted to the part. In a method closely paralleling electroplating, paint is deposited using direct electrical current. The electrochemical reactions that occur cause water-soluble resins to become insolubilized onto parts that are electrodes in the E-coating paint tank. Subsequent resin curing is required. E-coat processes are also referred to as electrocoating, electrodeposition, electronic coating, e-painting, electronic painting, electro coating, electrophoretic coat and electrophoresis coating.