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Perspectives of UV-protection concepts in coatings with nanoscale components

Greisinger H., Koch D., Entenmann M.

Farby i Lakiery

2015

nr 4

3--6

Concepts, which are able to slow down photochemical degradation processes, become more and more important for today’s protective coatings. For multilayer coatings on metal constructions, especially for automotive coating systems, it is mostly the primer or the e-coat layer, which shows the most serious photochemical degradation effects with consequences like adhesion problems, peeling and finally corrosion processes of the metal substrate. In the presented study, a combination of inorganic and organic nanoscale components was used in the top coat or clear coat formulations in order to enhance the sustainability of the UV-protection in multilayer coating systems.