Which tests are used to evaluate the quality and durability of an exterior coating?
The most important tests of the quality and durability of an exterior coating are: Natural weathering as defined by regulation EN927/3 Evaluation of water-vapor permeability EN927/4 Evaluation of water permeability EN927/5 Resistance to accelerated weathering EN ISO 4892-1 Breaking strain (VFF Institute, Germany) UV permeability