A study was conducted on the degradation behavior of an epoxy corrosion-resistant coat-ing in NaCl solution,focusing on the electrochemical impedance,water absorption,and adhesion of the coating.The results indicated that the coating still exhibits good protective performance after immersion for 5350 h.Meanwhile,a correlation between the changes in electrochemical impedance,water absorp-tion,and adhesion of the coating was observed.The physical/chemical reaction between the electrolyte solution and the resin material might be the main mechanism of the coating degradation,with tempera-ture being a significant influencing factor and the effect of coating thickness being less apparent.
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