【Car owner's car knowledge]Auto foil is to paste a layer of film-like object on the front and rear windshield glass, side window glass and sunroof of the vehicle, and this layer of film-like object is also called solar film or explosion-proof heat insulation film. Its main function is to block ultraviolet rays, block some heat, and prevent injuries caused by sudden glass bursts. At the same time, according to the one-way perspective performance of the solar film, it achieves the purpose of protecting personal privacy. In addition, it can also reduce the damage caused by ultraviolet radiation to the items in the car and personnel, and achieve the effect of saving fuel consumption in some aspects.
In general, there are 7 major benefits of car glass film:
1. Insulation and sun protection. The film can solve the large amount of heat generated by infrared rays very well.
2. UV protection.The medium and long waves of ultraviolet rays can penetrate very thick glass, and 99% of the ultraviolet rays can be cut off by attaching a thermal insulation film. Prevent skin damage, but also reduce car interior aging. For example, 3M's Jingrui 70 front blocking film can block 99.9% of ultraviolet rays, which is equivalent to 56 times of sunscreen SPF40.
3. Safety and explosion-proof.The base layer of the film is polyester film, which is very resistant to tearing and breakdown, preventing accidental glass breakage from causing secondary damage to drivers and passengers.
4. Create a private space.After the film is applied, the inside of the car cannot be seen clearly from the outside of the car, preserving privacy and safety.
5. Reduce air conditioning energy consumption.The loss of cooling capacity of the air conditioner can be compensated by putting on the heat insulation film, which can prevent the temperature inside the car from being too high to a certain extent, and achieve the effect of saving fuel consumption and reducing the energy consumption of the air conditioner to a certain extent.
6. Improve the aesthetics.According to personal preferences, the car can be personalized and beautiful through the film.
7. Anti-glare.Keep your eyes comfortable. Reduce accidents caused by glare factors.
Some main performance indicators of automotive thermal insulation film:
Visible light transmittance:Light transmittance for short is used to measure the percentage of visible light passing through the glass. The front baffle film is generally above 70%, and the side and rear baffles generally range from 5% to 60%. The lower the percentage, the worse the light transmittance. The darker the film color.
UV blocking rate:For high-quality automotive film, this index is generally not less than 98%, and the highest can reach 100%. The high UV blocking rate can effectively prevent people in the car from being irradiated by excessive UV rays and burn the skin, while many inferior films do not have this indicator, or are far below the 98% standard.
Infrared blocking rate:Infrared light is also a part of sunlight, and most of the heat of light is transmitted through infrared light. Compared with automotive glass film, the higher the percentage, the better the thermal insulation effect.
Total Insulation Rate:The total thermal insulation rate of professional thermal insulation film can generally reach 40%-79%. It is a value synthesized by various indicators of the glass film. Some businesses usually confuse the concept and often use the concept of "infrared blocking rate" to pretend to be "thermal insulation rate". This is not correct.
Visible light reflectivity:Unlike visible light transmittance, the higher reflectance class will reflect the illuminating light directly back, similar to a mirror. The higher the reflectivity, the greater the privacy of the glass film and the better the thermal insulation.
Choose the four major measures of glass film "see, smell, touch, wipe".
Look:The high-definition film is a good film, and the inferior film looks foggy.
smell:After tearing off the protective layer, the inferior film smells a pungent smell, while the high-grade film uses environmentally friendly glue, which basically has no taste or a faint glue smell.
touch:The high-grade film feels thick and smooth to the touch, while the inferior film is soft and thin, lacks sufficient toughness and is prone to wrinkling.
wipe:You can bring a little alcohol or gasoline and wipe the surface of the membrane. Inferior films are easy to fade when wiped, but high-grade films are not easy to fade.
How to choose the right car glass film for you:
front zip:The light transmittance of the front block is generally above 75%, which ensures the clarity of driving and ensures driving safety at the same time. The higher the light transmittance, the more transparent the film is, but the thermal insulation performance and the UV blocking performance will be reduced at the same time.
Side rear block: There are many combinations of side rear window film.
1,Those who pay attention to privacy can choose a model with a lower light transmittance. The lowest light transmittance on the market is 5%, and it is almost impossible to see inside the car window.
2,If you want to improve the thermal insulation performance, you can choose a model with a higher infrared blocking rate and a higher total thermal insulation rate. Generally, the thermal insulation rate on the market can reach about 60-70%, but it should be reminded that: the car glass film with good thermal insulation rate cannot completely reduce the temperature rise in the car, but can only alleviate or slow down the speed of temperature rise.
3.If you want to improve safety, you can choose a more expensive explosion-proof membrane. This film can effectively prevent the broken glass from splashing and hurting people when the glass is broken.
4.Of course, you can also choose to use the model of the front baffle film to stick to the side rear baffle, which can not only have a certain effect of heat insulation and light blocking, but also does not affect the lighting of the interior space.
Email: