With its high elasticity (stretching rate exceeding 400%) and toughness, the TPU base film effectively cushions impacts from external forces such as stone impacts and tree branch scrapes, protecting the original car paint from damage. Its corrosion resistance demonstrates outstanding performance in acid rain tests, extending its lifespan by 2.3 times that of ordinary materials. The elastic memory coating enables the TPU car cover film to automatically repair micro-scratches at temperatures above 25°C, increasing repair efficiency by 40%. Actual tests show that scratches disappear within three days of washing a car. Some high-end products also feature a photocatalytic coating, which uses ultraviolet light to decompose stains at an efficiency of 85%.