Entenmann, MarcMarcEntenmannKoch, DennisDennisKochGreisiger, HeinzHeinzGreisigerSchauer, ThadeusThadeusSchauer2022-03-042022-03-042013https://publica.fraunhofer.de/handle/publica/232966In multilayer automotive coating systems, it is often the e-coat layer which degrades under weathering, leading to coating failure and corrosion. Photo-oxidation index (POI) measurements on multi-coat systems showed that the POI of the e-coat increases during artificial weathering. This degradation process is influenced by both UV and thermocatalytic effects, so dark coatings increase e-coat degradation.enMehrlagenschichtmultilayer coatingsMultischicht-LacksystemphotodegradationPhotooxidation Index (POI)AutomobilBeschichtungLackoxidation667journal article