TPU film is widely used in paint protection films due to its remarkable advantages. The following is an introduction to its advantages and structural composition:
Advantages of TPU Film Used in Paint Protection Films/PPF
- Superior Physical Properties
- High Toughness and Tensile Strength: TPU film possesses extremely high toughness and tensile strength, with its ductility reaching nearly 300%. It can closely adhere to various complex curves of the car body. During the vehicle’s driving, it can effectively resist damage to the paint surface caused by stone impacts, branch scratches, and so on.
- Puncture and Abrasion Resistance: The TPU-based paint protection film can withstand a certain degree of sharp object punctures. In daily use, it has excellent abrasion resistance against friction from road gravel and car wash brushes. It is not prone to wear and damage even after long-term use.
- Good Chemical Stability
- Chemical Corrosion Resistance: It can resist the erosion of chemicals such as tar, grease, weak alkali, and acid rain, preventing the car paint from reacting with these substances, which could otherwise lead to discoloration and corrosion.
- UV Resistance: Containing UV-resistant polymers, it can effectively block ultraviolet rays, preventing the car paint from fading and aging under long-term sun exposure, thus maintaining the luster and color stability of the paint surface.
- Self-Healing Function: TPU paint protection films have a unique elastic memory function. When subjected to slight scratches or abrasions, as long as a certain amount of heat is applied (such as sunlight or hot water wiping), the molecular chains in the film will automatically rearrange, causing the scratches to heal themselves and restoring the smoothness of the paint surface, keeping the vehicle looking brand new.
- Excellent Optical Properties
- High Transparency: The transparency of TPU film is usually above 98%. After application, it is almost invisible, perfectly integrating with the original car paint without affecting its original color. Meanwhile, it can enhance the gloss of the paint surface by at least 30%, making the vehicle look brand new and shiny.
- Anti-Glare and Brightening Effects: It can effectively reduce light reflection and glare, presenting a clear and shiny appearance of the vehicle under different lighting conditions. This not only improves driving safety but also enhances the vehicle’s aesthetics.
- Environmental Protection and Safety: TPU material is non-toxic and odorless, harmless to the environment and human health. During the application and use process, it does not release harmful gases or substances, meeting environmental protection requirements. It also causes no damage to the car paint. When it needs to be removed, there will be no glue residue left, and the original factory paint will not be damaged.
Structural Composition of TPU Paint Protection Films
- Scratch-Resistant Coating: Located on the outermost layer of the protection film, its main function is to prevent the surface of the protection film from being scratched. It is also a key part to achieve the self-healing function. It can automatically repair slight scratches, keeping the film surface smooth.
- TPU Substrate Layer: As the basis of the scratch-resistant layer, it plays a role in buffering and providing in-depth scratch resistance. It provides high toughness, strong tensile strength, puncture resistance and other properties. It is the core part of the TPU paint protection film, determining the durability and service life of the protection film.
- Pressure-Sensitive Adhesive Layer: Located between the TPU substrate layer and the car paint, its main function is to adhere the TPU layer firmly to the car paint surface. Meanwhile, it should ensure easy construction during application and can be cleanly removed without leaving any glue residue when needed.
Post time: Mar-10-2025