Many friends who like to mention their cars like to do two things: add or modify equipment and strengthen the protection of their cars. For example, sticking film on new cars is one of them, just like mobile phones. Then a friend wants to change the color of the car to be cool. If the color change film can protect the car body, it's not killing two birds with one stone! So many friends will ask, what's the difference between car color changing film and invisible car clothing?

从材质角度来说明：目前主流大例如XPEL采用的是新一代的TPU基材+纳米涂层技术组成(即传说中的新一代改良TPU材质),它的组成结构分为四层:纳米涂层、聚氨酯膜(TPU基材层)、丙烯酸共聚物(压敏胶层)、底胶保护膜(聚酯衬垫/PET底纸)。较好的耐高能射线性能，耐磨性、抗撕裂性、曲绕强度都是非常好的，这些在XPEL官网都能查到的！

First of all, from the material point of view: at present, the mainstream brands such as xpel are composed of a new generation of TPU substrate + nano coating technology (that is, the legendary new generation of improved TPU material). Its composition structure is divided into four layers: nano coating, polyurethane film (TPU substrate layer), acrylic acid copolymer (pressure sensitive adhesive layer), primer protective film (polyester liner / Pet backing). Good high-energy ray resistance, wear resistance, tear resistance, winding strength are very good, which can be found on the official website of xpel China!

汽车改色贴膜与隐形车衣的区别是什么

What is the difference between car color changing film and invisible car coat

济南汽车改色贴膜从材质来说是PVC材质，是一种对光和热的稳定性较差的材质，pvc在使用一段时间之后会很快的变黄、变脆，这是因为pvc材质的软化点较低在80℃左右，并且在不加热稳定剂的情况下，聚氯乙烯在100℃就会开始分解，130℃以上分解速度显著加快，在热分解过程中会释放出氯化氢气体，氯化氢是一种有毒气体，他会使透明膜变色，从白色→浅黄色→红色→褐色→黑色，并且阳光中的氧气和紫外线会和聚氯乙烯发生光氧化分解从而使它的柔韧性下降变脆，选择这个材质主要是方便染色。

Jinan automobile color changing film is made of PVC, which has poor stability to light and heat. PVC will turn yellow and brittle quickly after using for a period of time. This is because the softening point of PVC is low, about 80 ℃, and without heating stabilizer, PVC will start to decompose at 100 ℃, and the decomposition speed is significantly accelerated above 130 ℃ Hydrogen chloride is a toxic gas released during thermal decomposition. It can change the color of transparent film from white to light yellow to red to brown to black. Oxygen and ultraviolet light in the sun will decompose with polyvinyl chloride by photooxidation, which will reduce its flexibility and make it brittle. This material is mainly used for convenient dyeing.

从上面的两种膜的用料就能知道，pvc由于材质的特性，所以它的使用寿命和效果1年左右（这里时间是指它的眼观效果较好的发挥时间），因为pvc会逐渐的老化、褪色，还没有预计不可比较的剐蹭情况。TPU材质相对来说使用寿命在10年左右，不会变色，并且具备自动修复划痕功能，所以使用寿命较长。

From the materials of the above two kinds of films, we can know that due to the characteristics of PVC material, its service life and effect are about 1 year (here, the time refers to the time when its visual effect is better), because PVC will gradually age and fade, and there is no incomparable scratch situation. TPU material relatively has a service life of about 10 years. First of all, it will not change color and has the function of automatic repair of scratches, so it has a long service life.

所以，各位车主可以根据自己情况判断，其实贴一些便宜的改色膜图个新鲜也是不错的，不过就不要奢求一举两得的事情了，如果有商家跟你说改色膜是可以保护车漆的，那也是在忽悠你，关键是一定一定一定要找相对知名度大一点的，因为无论是隐形车衣还是济南汽车改色贴膜，如果是劣质材质的话，是会伤车漆的，不要为了节约点膜的费用把本身好的车漆毁了，那宁愿什么都别贴。

So, car owners can judge according to their own situation. In fact, it's good to paste some cheap color modification film pictures. But don't try to kill two birds with one stone. If a business tells you that the color modification film can protect the car paint, it's also cheating you. The key is to find a brand that is relatively well-known, because whether it's invisible car clothes or not It's Jinan automobile color changing film. If it's of poor quality, it will damage the car paint. Don't destroy your good car paint in order to save the cost of film. You'd rather not stick anything.