DIN 55655-4:2017-02

During the electro-deposition coating process, foreign materials used in upstream production processes pass through the ETL tank. This can lead to contamination of the ETL bath material or disturbances in the surface of the coating. Foreign materials can be, for example, oils, adhesives, insulating materials or plastic components. This part of DIN 55655 specifies three different methods for the contamination of electrocoatings with liquid, paste-like and solid foreign materials. Test methods for determining the compatibility of electro-deposition coating materials with a reference oil, which influences the properties of the electro-deposition coating, are described in Part 3 of the series of standards. This standard has been prepared by Working Group NA 002-00-07-09 AK "Automobilbeschichtungen" ("Automotive coatings") of Working Committee NA 002-00-07 AA "Allgemeine Prüfverfahren für Beschichtungsstoffe und Beschichtungen" ("General test methods for coating materials and coatings") at DIN Standards Committee Coatings and Coating Materials (NAB).