As we mentioned earlier, in addition to the brand premium and model differences, the price of the invisible car suit is also related to the material, technology and construction. Today we will talk about the core part of the paint protection film - the substrate.
Invisible livery construction
The common invisible car clothing structure on the market can be divided into five layers - attached film, top coating, substrate, adhesive and bottom film, among which the most expensive and core part is the substrate. On the one hand, because the thickness of the substrate is the thickest among several structures, and on the other hand, because the substrate of the car coating is the core key to protect the original car paint from scratching and injury.
The thickness and quality of the substrate determine the ability of the car coating to protect the car paint, so there is such a rule: the thickness of the substrate is basically proportional to the price of the product under the same brand of the same series of products (that is, when the quality of the substrate is the same). For example, the V10, V100 and V1000 products of the leading brand of invisible car clothing, although the materials are the same, the thickness of the substrate is different, resulting in different prices.
Invisible livery
Let's talk about the material of the substrate. According to the development process of invisible car clothing, its substrate can be roughly divided into three categories - PU, PVC, TPU.
PU
The chemical name of PU is polyurethane, which is the abbreviation of polyurethane, and the English name is Polyurethane, which is an emerging organic polymer material. The invisible car clothing with PU substrate was first released in 1996, also known as "rhinoceros leather". The disadvantages of rhinoceros leather are that it is easy to yellow, peeling off and scratches cannot be repaired, and the toughness and ductility are poor, so that it can only be used in a small area and cannot meet the needs of large-scale vehicles. Therefore, the invisible car clothing made of PU material was gradually eliminated by the market, giving birth to the second generation of PVC car clothing.
PVC
The scientific name of PVC is polyvinyl chloride, and the English name is Polyvinyl chloride. PVC used to be the world's most produced general-purpose plastic and has a wide range of applications. PVC invisible car clothing has a place in the domestic and foreign markets with its low price (the price of the whole car is generally about 5K), although it solves the problem of ductility, but it still can't get rid of the problems of easy yellowing, yellowing, oxidation, and scratches that cannot be repaired.
TPU
TPU is a kind of polyurethane. Compared with PU materials, the TPU obtained after technical treatment has better cold resistance, heat resistance, and dirt resistance, as well as better ductility and self-memory functions. Therefore, most of the high-end invisible car coats on the market, such as Weigu invisible car coats, are made of TPU material.
Puncture resistance test
In general, these three types of invisible car clothing, PU substrates have basically disappeared from the market; Although PVC substrates are cheap, they have many drawbacks; Although the price of TPU substrate is expensive, it has a high cost performance and stability.
