Evaluation of UV radiation influence on abrasivity of protective-decorative coatings for car bodies


  • Danuta Kotnarowska Kazimierz Pulaski University of Technology and Humanities in Radom
  • Dariusz Stanisławek Kazimierz Pulaski University of Technology and Humanities in Radom




acrylic-polyester coatings, UV radiation ageing, coating abrasion


The paper presents investigations concerning physico-chemical properties as well as a resistance to abrasion (abrasivity) of three-layer acrylic-polyester (renovation) coating systems after ageing with ultraviolet (UV) radiation. Generated by UV radiation photodestruction and photodegradation of examined coatings surface layers caused their chipping. This had an impact on progressive decline of the coatings thickness and hardness with the ageing time flow. UV ageing caused also almost twofold increase in surface roughness parameters Ra and Rz values. Surface roughness of the aged coatings increasing with the ageing time flow as well as their decreasing hardness contributed to their resistance to abrasion decrease, measured with the mass loss of abraded (using T-07 apparatus) coating material.


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How to Cite

Kotnarowska , D. ., & Stanisławek , D. . (2019). Evaluation of UV radiation influence on abrasivity of protective-decorative coatings for car bodies. AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe, 24(6), 192–197. https://doi.org/10.24136/atest.2019.149