Let's start with a nag about light transmittance:
Visible light transmittance, the higher the visible light transmittance, the lighter the color of the window film, the clearer the field of vision, according to the traffic regulations, the visible light transmittance of the front window and front windshield should reach 70% and above.
Green and environmentally friendly:
1. The substrate material is very important: it is not recommended to dye the film, the dyeing film contains formaldehyde and other chemicals, which is very unenvironmentally friendly, and some inferior films will release a large amount of formaldehyde, which seriously pollutes the environment in the car and endangers human health!
Thermal Insulation Rate:
Look at the total solar barrier rate, the higher the total solar barrier rate, the better the thermal insulation performance, now the conventional solar film barrier rate is between 30% and 40%, and the high-end solar film barrier rate can be 55%.
Privacy:
The lower the visible light transmittance, the darker the color of the car film, and the better the privacy.
Signal effects
The metal film has metal particles, which will affect the signal transmission to some extent, while the nano ceramic film will not affect the model transmission, so you can use metal film for the front window and ceramic film for the rear windshield, so that on the basis of heat insulation, the signal can also be unimpeded.
You can recommend several combinations of Shengjia window films
LR73 NC15 35 is the best thermal insulation film on the market, and although LR73 is a metal film, it has no effect on ETC mobile phone signals.
Families who value privacy can choose.
The US70 MS15 25 is explosion-proof and heat-insulating, and can also reduce the energy consumption of air conditioning in summer and winter.