ABSTRACT
In this study, outdoor exposure tests were conducted on a C-5 coating system, which is a heavy-duty corrosion-resistant coating, to evaluate the deterioration of the coating based on Young’s modulus up to the seventh month. Young’s modulus was measured using the nanoindentation method, which is a non-destructive method used for thin-film structures. In the evaluation, gloss and color differences, which are classified as “landscape performance,” and film thickness and adhesion, classified as “adhesion performance,” were also measured to investigate their relationship to Young’s modulus. The results of the seventh month showed that the color difference and gloss were degraded, but there was almost no change in film thickness, adhesion, or Young’s modulus. This suggested that there was no relationship between Young’s modulus and “landscape performance.”
