The article presents the results of surface degradation studies of acrylic coatings (used as protective and decorative coatings for car bodies) aged under the influence of ultraviolet radiation (for 1008 hours).
The subject of the aging studies were solvent-borne two- and three-layer acrylic coatings, as well as three-layer water-borne acrylic coatings. Gloss and surface roughness tests documented a significant reduction in the decorative properties of the aged coatings. The greatest loss of gloss, as well as the greatest increase in surface roughness, was found for the two-layer acrylic coating. Only on the surface of this type of coating was the occurrence of silver cracks observed. In contrast, the three-layer water-borne acrylic coating showed the highest resistance to surface degradation under the influence of ultraviolet radiation. (…)
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Source: Logistyka Magazine
Keywords acrylic coatings, coating aging surface degradation – PDF file for download