TPU has excellent physical and mechanical properties. It can be plasticized by heating and solidified by cooling. TPU has both the high elasticity of rubber materials and the high strength of engineering plastics. It has excellent comprehensive properties such as high strength, high toughness, high elasticity, high modulus, as well as resistance to chemical corrosion, wear resistance, oil resistance, and strong shock absorption ability. , is widely used in shoe materials, cables, films, pipes, automobiles, medical and other industries.

TPU film is a film made from TPU granules through special processes such as calendering, casting, film blowing, and coating. Because TPU film has the characteristics of high moisture permeability, air permeability, cold resistance, heat resistance, wear resistance, high tension, high pulling force, and high load support, its application is very wide, and TPU film can be found in all aspects of daily life. For example, TPU films are used in packaging materials, plastic tents, water bladders, luggage composite fabrics, etc.

Structurally speaking, TPU invisible car clothing is mainly composed of functional coating, TPU base film and adhesive layer. Among them, the TPU base film is the soul of invisible car clothing, and its quality is very important, and its performance requirements are extremely high.

TPU invisible car clothing has a self-repairing TPU-specific enhanced scratch-repair coating. No measures are needed. Scratches will be repaired automatically over time, keeping your car away from subtle scratches and sun spiral patterns.

According to the type of diisocyanate, TPU is mainly divided into aromatic TPU with weak yellowing resistance and aliphatic TPU with strong yellowing resistance.

Structurally speaking, because there is an easily oxidized methylene bridge between the two benzene rings of aromatic TPU, a quinone-like structure will be generated during processing and use. The quinone compound is brown, so it is subject to thermal oxidation. It is easy to turn yellow due to exposure to UV rays and UV rays. Therefore, if aromatic TPU is used, even if an anti-UV agent is added, long-term light exposure will cause discoloration and yellowing.

Aliphatic TPU does not contain benzene rings, so its structure is more stable and not easily affected by ultraviolet rays. Therefore, the car clothing of international mainstream brands all use aliphatic TPU as the base material of the car clothing to achieve the purpose of durability, anti-fouling, and anti-yellowing.

The cost of aliphatic TPU is higher than that of aromatic TPU, which is one of the reasons why the price of invisible car clothing made of TPU on the market varies greatly.

To put it simply, in the case of small scratches, as long as the car film is not broken, the invisible car cover made of TPU has a certain ability to self-repair, which is an ability that the invisible car cover made of PVC material does not have.

In addition, it also has good UV resistance to prevent long-term damage to the car paint; it also protects the gloss of the original car paint. Good adhesiveness, no edges opening or cracking. Good pressure-sensitive adhesive properties ensure that it can be removed at any time without leaving any adhesive residue. TPU is very suitable for long-term use of outdoor paint protection. The construction is completed and is resistant to yellowing, cracking, and warping. It is truly the most revolutionary top-level paint protection film ever invented.