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Durability assessment of automotive coatings—Design and evaluation of accelerated tests

  • Technical Articles
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Journal of Coatings Technology

Abstract

In this work the influence of different climatic parameters on the rate of gloss reduction was studied for a number of different automotive coatings. The purpose was to improve the reliability of accelerated test procedures by selecting test conditions that improve the simulation of the degradation processes that occur during outdoor exposure. Results from Florida exposure and accelerated exposure tests were evaluated using an acceleration factor based on the light dose needed to cause a certain reduction in gloss. The results indicate that agreement between accelerated tests and Florida exposure is improved when a test sequence simulating acid rain is included in the accelerated test cycle.

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Authors and Affiliations

  1. Swedish National Testing and Research Institute, Sweden

    K. M. Wernståhl & B. Carlsson

Authors
  1. K. M. Wernståhl
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  2. B. Carlsson
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Additional information

Division of Surface Protection and Corrosion, Box 857, 501 15 Borås, Sweden.

KARIN WERNSTÅHL received the M.Sc. and Lic. Eng. Degrees in Chemical Engineering from Chalmers University of Technology. Since 1987, she has been employed at the Swedish National Testing and Research Institute, Division of Surface Protection and Corrosion in Borås, Sweden.

BO CARLSSON earned his M. Sc. in Chemical Engineering, Techn. Dr. and Assoc. Prof. in Physical Chemistry at the Royal Institute of Technology, Stockholm. Since 1984, he has been acting head of the Division of Surface Protection and Corrosion at the Swedish National Testing and Research Institute.

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Wernståhl, K.M., Carlsson, B. Durability assessment of automotive coatings—Design and evaluation of accelerated tests. Journal of Coatings Technology 69, 69–75 (1997). https://doi.org/10.1007/BF02696121

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