Many car owners will film their cars, which has become a must-do for almost all consumers after purchasing a car. However, many films are not genuine, which causes losses to consumers. Here is the identification of car explosion-proof heat insulation film, and tell car owners how to choose car film.
I. Explosion-proof performance
The material of ordinary sun paper or inferior explosion-proof film is different from the real explosion-proof film. The film is very thin and soft, lacking Sufficient toughness, not resistant to ultraviolet radiation, easy to age and brittle, and can not play an explosion-proof role when encountering an accidental collision. The authentic explosion-proof film will be firmly adhered to the film after the glass is broken so that it will not splash and hurt people. When using the super explosion-proof film, if you encounter gangsters hitting the window with a stick to steal the car or steal the items in the car, it can also improve the strength of the resistance, so that the glass is not easy to be broken, and the special bulletproof film can be used for cash transport vehicles. bulletproof glass and riot police car.
Second, light transmittance and clarity
This is the most important performance related to driving safety in automotive film, some sun paper (commonly known as brown paper) ) Although the color is very deep, the light transmittance is extremely low. After the film is applied, it is completely black. You must dig a hole in the side window film to see the rear mirror, which is quite dangerous for driving safety. And good car explosion-proof heat insulation film, no matter the color depth, the clarity is very high, not only can reduce the strong glare reflection of the rear headlights on the rear mirror when driving at night, but also drive in the rainy night, reverse or turn around Also has a good view. Therefore, users generally do not choose a film with too low light transmittance when applying the film.
Three, thermal insulation performance
The thermal insulation rate is an important indicator to reflect the thermal insulation performance of automobile explosion-proof film. Explosion-proof films such as Ke, Ray-Ban, etc., generally have a thermal insulation rate of more than 50%, high light transmission and high thermal insulation, which can not only improve the comfort of driving, but also reduce the air-conditioning load to save fuel. On the contrary, many films have only light transmittance and no thermal insulation rate, and some even have no indicators at all. Therefore, in addition to checking whether the heat insulation rate and other indicators are standardized when applying the film, the safest way is to block the sun with the glass of the film or irradiate it with an iodine tungsten lamp, and directly test the heat insulation effect with the face or hand.