［Objective］To reduce scratches on the car body and enhance vehicle appearance.［Methods］This study aimed to analyze the causes and scenarios of scratches on the automotive paint films，summarize the methods to improve the scratch resistance of the clearcoats，evaluate the scratch resistance，appearance，mechanical properties，and application performance of a commercially available scratch resistant clearcoat，and verify its compatibility with existing coating lines.［Results］ The scratch resistant clearcoat has improved its scratch resistance，long and short wave performance，loss of gloss，mechanical properties，and application performance，compared to 2K clearcoats，with a loss of gloss reduced to 4. 0% compared to 2K clearcoat（20. 1%）.［Conclusion］ The scratch-resistant clearcoat exhibits excellent appearance characteristics，including high fullness，good transparency，and excellent leveling performance. Furthermore，its scratch resistance，application performance，and other properties are also superior，making it suitable for use in existing coating lines to enhance the overall appearance of automobiles.