Abstract
Scratch resistance of an acrylic/melamine clearcoat (on the black and silver basecoats) was studied by means of laboratory simulator carwash and nano-scratch tests before and after carrying out a weathering test. The scratch morphology was studied by scanning electron microscope (SEM). Gonio-spectrophotometer and micro-indentation were utilized to investigate appearance changes and mechanical properties of the clearcoats. Results showed that scratch resistance of the silver sample was higher than the black one. The scratch resistance of the black and silver samples was improved at short exposure times. A decrease in scratch resistance of the coatings was obtained at long times.
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