Car film is unfavorable stick two to cause traffic hidden trouble

Some cars advocate can think: Oneself car stuck film after period of time, car film appears fade phenomenon, the light transmittance that feels film greatens, inside the car unwarrantable darker effect, is this how to return a responsibility? If a film is stuck again on the foundation here, can be the effect improved?

Here, stick velar expert proposal: The mainest reason that brings about car film to fade is ultraviolet ray, it can destroy the pigment in coloured film, this kind of circumstance happens on average color film more. And better metallic film contains high-powered ultraviolet absorbefacient, can prevent ultraviolet harm for long, because the metal won't fade, can maintain the outward appearance for a long time so changeless.

As summertime arrival, some cars advocate inside the car after film ill will color fades not quite dark, choose to stick the way of two film. The expert reminds, stick two film to be able to appear normally two such problems: (1) the design of film that stick gum is designed in the light of glass, unwarrantable in good condition ground is stickup between two film; (2) construction has certain difficulty, the 2nd film may stick firm ground floor instantly film, make you have not enough time to squeeze the moisture in two film piece, can produce bleb and water bag not only, and still can greaten as time elapse, become much.

If want the light inside the car darker, can choose the film with small light transmittance, do not need to stick two. But the expert's opinion is, at present Chinese country the Ministry of Public Security " film of sunshade of car vehicle pane " the visible light transmitance that asks to film is blocked before all cars must is more than 70% , can affect the driver's line of vision otherwise, cause traffic hidden trouble.

Current, reflectivity of visible light light transmittance, visible light, adiabatic rate, ultraviolet ray cuts off leading is 4 commonly used car film function index. According to optical principle, before 3 person main concern is: Light transmittance is taller, adiabatic rate is lower; Glance rate is higher, adiabatic rate is higher. And tall glance can drive to the car bring great hidden trouble by safety. Contented tall pervious to light, tall heat insolation, low the highest state that glances this 3 big demands are technology of current car film. So, each car advocate when choosing car film, must compare evenly, cannot pure for tall heat insolation choice is tall glance, to drive in the future by cause needless hidden trouble.