Motec PPF（Paint Protection Film）.Paint Protection Film has become the preferred maintenance method for car owners due to its powerful features. And when choosing Paint Protection Film, you often hear some merchants introduce that Paint Protection Film has a self-healing function. But you know what? The repair function of Paint Protection Film is divided into hot repair and second repair. What is the difference between them? Which one is better to choose?

It should be noted that a large part of the reason why PPF can repair some small scratches is because there is a special polymer coating on the surface of PPF. This coating has scratch memory repair function. When the surface of PPF is slightly damaged, the coating will self repair to its previous state. This type of coating is further divided into two repair methods: instant repair at room temperature and hot repair by baking paint or hot water. That is what we often refer to as second repair and hot repair.

Second repair

The second repair of PPF refers to repairing the scratched PPF at room temperature. Early PVC and PU PPF materials both had the function of "instant repair". The principle of repair is also very simple, mainly because the molecular spacing of PPF is relatively large. Under the action of external force, the molecules of PPF are dispersed due to compression, and the scratches that appear at this time are false scratches. Therefore, when the external force dissipates, the molecular structure returns to its original position. However, if the external force is too strong and exceeds the range of molecular activity, traces will also appear on the PPF. And it cannot be eliminated.

Hot repair

Hot repair can only be carried out at a certain temperature. Currently, only PPF made of TPU material has this function. PPF made of TPU material has super strong toughness and stretchability. Moreover, the PPF molecular density of this material is relatively high, making it difficult for scratches to penetrate deeply, thus effectively preventing scratches on the car paint. Moreover, at a certain temperature, the damaged molecular structure will also automatically repair, achieving the effect of self repairing scratches.

Which one is better?

Although hot repair may sound more complex than second repair, the scratch resistance of "second repair" is relatively weak. Moreover, the toughness, ductility, stain resistance, and hydrophobicity of substrates such as PVC and PU are much worse than TPU materials. Moreover, PPF made of PVC material is prone to bringing dirt into it during repair, dirtying the film surface, and easily yellowing, resulting in a shorter service life.

Although TPU material PPF can only self repair at a certain temperature, its own anti fouling ability and resistance to external scratches are super good. Therefore, when facing scratches, it has a more obvious effect. So when choosing, it is better to choose a PPF with thermal repair.

Motec PPF (Paint Protection Film) not only resists pollutants and UV rays, but also has thermal repair function, which can automatically repair small scratches. At the same time, it can enhance the gloss of the car paint, give your car a brand new look, and increase the value of second-hand transactions. In addition, imported brands like Motec have reliable product construction and after-sales service, making them very suitable for car owners.