This article describes the function of automotive clear coat, which is applied on top of the vehicle's surface coating to protect it from daily wear and tear and external environmental damage. Automotive clear coat serves several functions, including resisting scratches, abrasion, weathering, and UV damage, increasing the glossiness of the car paint surface, protecting the coating from chemical substances, corrosion and oxidation, and extending the lifespan of the coating. The article emphasizes that the main purpose of automotive clear coat is to protect the surface coating of the vehicle, enhance its aesthetics, and maintain the stability and lifespan of the coating.