The reason why the invisible car suit can repair itself is that there is a special polymer coating on the surface of the car suit. Sometimes it is damaged by external force. After the force of blocking external force disappears, the coating will return to its original appearance. However, if the coating is damaged, the self-healing ability of the invisible car suit will disappear.

现在市面上的隐形车衣是分为划痕秒修复和划痕热修复两种，划痕秒修复是在常温条件下直接自我修复，而划痕热修复则是需要加温到一定的温度之后才会进行修复。

Now the invisible car clothing on the market is divided into scratch second repair and scratch heat repair. Scratch second repair is self repair directly under normal temperature, while scratch heat repair is repair only after heating to a certain temperature.

划痕热修复

Scratch thermal repair

现在市面上TPU材质的隐形车衣是比较受欢迎的，使用的时间也是能够达到五年以上，TPU是一种热塑性聚氨酯弹性体橡胶，并且具有非常好的弹性，裂变伸长率能够达到百分之五十以上，是非常复塬能力非常好的一种材料。

TPU is a kind of thermoplastic polyurethane elastomer rubber, which has very good elasticity, and the fission elongation can reach more than 50%. It is a kind of material with very good recovery ability.

能够有热修复能力材质的隐形车衣一般来说就只有TPU这一种材质，在受到损伤之后只要经过太阳的照射或者是四十度左右的热水浇的话就能直接自我愈合。这种材质的分子结构是非常密集的，虽然划痕能够在上面留下痕迹，但也仅仅只是在表面上面的一层，并不会太过于深入。

Generally speaking, TPU is the only material that can repair the invisible car clothing. After being damaged, it can heal itself directly by the sun or hot water of about 40 degrees. The molecular structure of this material is very dense, although the scratch can leave traces on it, it is only a layer on the surface, not too deep.

修复能力的时间长短是和温度有着密不可分的关系的，如果是在常温20度左右的时候修复时间在一个小时左右就能完成，并且还能通过外力的温度来进行加快，如果热风枪和热水，都能都把修复的时间继续缩短，这种材质的隐形车衣在疏水性和抗污能力上面都是比较强的，分子结构紧密，尘土也就不容易进入，抗黄变性比较好。

The time of repair ability is closely related to the temperature. If the temperature is about 20 ℃, the repair time can be completed in about an hour, and it can be accelerated by the temperature of external force. If the hot air gun and hot water can continue to shorten the repair time, the hydrophobicity and antifouling ability of this kind of invisible car clothing are better than others Strong, close molecular structure, dust is not easy to enter, anti yellowing better.

划痕秒修复

Scratch second repair

在隐形车衣出现初期的时候使用的材质一般都是PVC和PU的，这两种材质的隐形车衣一般都是具有秒修复的功能，这是因为这种材质的分子结构比较分散，在受到外力撞击的时候分子会向两侧运动，在外力的作用消失之后分子结构又会回到塬来的位置上面，就相当于没有划到一样。

In the early days of the appearance of invisible car suits, the materials used were generally PVC and PU. These two kinds of invisible car suits generally have the function of second repair. This is because the molecular structure of this kind of material is relatively dispersed. When impacted by external force, the molecules will move to both sides. After the effect of external force disappears, the molecular structure will return to the plateau, which is equivalent to It's not the same.

但也是有一定缺陷的，如果受到的划痕超过了分子运动的距离的话就不能进行愈合了，就算是分子向划痕处运动，但划痕已经超过了分子运动的距离，这时候在车衣上面依然是会留下来一些划痕的。

But it also has some defects. If the scratch exceeds the distance of molecular motion, it will not heal. Even if the molecule moves to the scratch, the scratch has exceeded the distance of molecular motion. At this time, some scratches will still be left on the car clothing.

还有因为材质本身的塬因，在疏水性、抗污性、顺滑上面都和热修复的隐形车衣有着一些差距的，并且还是非常容易发黄，虽然说这种材质的秒修复能力比较强、成本也低，但在整体的使用时间上面却是非常的短，一般在使用了一年左右的时候整体就会变得发黄，而且在效果上面也有所减弱。

In addition, because of the material itself, there are some differences between the hydrophobicity, anti fouling and smoothness of the material and the heat repaired invisibility car suit, and it is still very easy to turn yellow. Although this material has strong second repair ability and low cost, its overall use time is very short. Generally, it will turn yellow after about a year of use, And the effect is also weakened.

这些就是两种隐形车衣的区别，所以在选择的时候不要因为便宜就选择了质量差的隐形车衣，正所谓是一分价钱一分货，如果贴了质量差的隐形车衣的话不仅在后期的使用效果上面有影响，还需要经常的更换。

These are the differences between the two kinds of invisibility car suits, so when choosing, don't choose the low-quality invisibility car suit just because the price is cheap. The so-called "one price one goods". If you stick the low-quality invisibility car suit, it will not only affect the later use effect, but also need to be replaced frequently.