Electrophoretic paints, commonly known as electrocoat or -paint, are organic coatings dispersed in water, carrying an electric charge. This enables the paint for deposition onto a metal, which is carrying the opposite charge. This special way of application results in special needs for formulating its coating: This textbook shows requirements and particularities for the electrocoat process and its troubleshooting. It illustrates the theoretical basics of electro-deposition, paint formulation, manufacturing, application process in addition to failures and countermeasures of the electrocoat process. Newcomers and practitioners alike get and a comprehensive overview over the wide field of electrocoats as well as deeper insights into this technology.