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Improvement and further growth of radiation cured coatings in exterior applications depends
on the development of inherently better performing binders. For the building and automotive
industries these binders should combine excellent weathering performance with other more
and more stringent requirements. An understanding of coating degradation is a first step that
will contribute to this development. In this study the weathering performance of different acrylated resins is compared. Three types of accelerated tests are conducted (QUV-A, QUV-B and Xenon). They are compared using results from visual inspection, color and gloss readings. The degradation phenomena are interpreted using backbone structure information combined with physico-chemical
measurements such as the monitoring of the surface's polarity (water contact angle), the physical aging of the material (modulated DSC) and the chemical changes (ATR-FTIR spectroscopy) during the accelerated weathering test
