Paint protective film

In the current market environment, the yellowing problem is common among TPU materials on the market, but the degree varies. Some also come with potential risks such as cracking and hydrolysis, which may even have an adverse impact on the car paint. From the perspective of chemical structure, TPU is mainly divided into two major categories: aromatic and aliphatic. Depending on the differences in the soft segment structure, TPU can be further subdivided into several types, such as polyester type, polyether type, and polycaprolactone type. Among them, the polyester, polyether, and polycaprolactone types of aromatic TPU will all show relatively serious yellowing, and over time, the impact on the aesthetics of the car paint cannot be underestimated.

As for the polyester and polyether types of aliphatic TPU, although the degree of yellowing is relatively mild, their low cost makes them often used in the production of PPF. However, this type of material has a risk of hydrolysis. Once hydrolysis occurs, it is very likely to damage the car paint. Driven by our pursuit of quality, we resolutely abandon their use. Instead, we choose relatively expensive aliphatic polycaprolactone TPU particles. The raw materials are sourced from two industry leaders, Covestro in Germany and BASF in Germany. Their products have excellent characteristics of being resistant to yellowing and hydrolysis within the shelf life, providing reliable protection for the car paint and giving you peace of mind.