Notes on car window insulation to avoid "losing money and getting nothing"
Summer is coming, which is also the time when solutions to reduce heat and prevent heat for cars receive a lot of attention, and car heat insulation film is one of the most popular choices.
Nowadays, many people who own cars park or leave their cars outdoors, instead of leaving them at home due to limited space. However, that also means that the car will be exposed to the wind and rain at night, or exposed to the sun for many hours during the day.
Summer is approaching, which is also the time when the nightmare of "stoves" on four wheels is about to happen again. Therefore, heat-resistant measures, including car heat-insulating film, are receiving a lot of attention. Possessing advantages such as high aesthetics, not causing a mess in the car cabin, good heat and harmful rays resistance, so heat-insulating film is the choice of many car owners.
However, users need to note a few points to use heat-insulating film effectively and safely, to avoid the situation of "losing money and getting sick".
Transmittance of heat-insulating film
The glass on each car has been designed and manufactured to the optimal level for the need to observe and get light into the car. Adding a layer of film will affect the quality of the glass, especially the windshield. Choosing a windshield film that is too dark and has low light transmission will make it difficult to observe and control the car, especially when it is dark.
To minimize the impact of the film on the driver's vision, the windshield in front of the driver should be covered with a film with high light transmission (over 65%), transparency over 60%, and reflectivity under 10%. For the side and rear windows, you can choose a darker film to create privacy for the people sitting in the car.
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Ability to block harmful rays
Basically, heat-insulating films are generally produced by coating ultraviolet and infrared absorbents on the surface of polyester resin. This is also one of the biggest differences between high-quality, branded heat-insulating films and low-quality films.
High quality heat-insulating film can block a large proportion of infrared heat and up to 99.9% of ultraviolet rays from entering the car. This not only protects the health of passengers but also helps the interior and equipment in the car last longer. As we know, infrared rays, in addition to the beneficial effects on human health, if the intensity and infrared radiation are too high, can affect the eyes, skin or ear, nose and throat.
Similarly, ultraviolet rays, in addition to the benefits such as helping the body synthesize vitamin D, preventing rickets or having the ability to disinfect, also have many unpredictable harmful effects on human health, causing darkening, burns, aging, even skin cancer or eye damage. Therefore, the ability to block ultraviolet rays is a crucial requirement that heat-insulating film must meet.
Meanwhile, low quality films, although dark in color, do not block UV rays. The dark color of the film only gives a “virtual cool” feeling because dark colors absorb heat well.
In addition, low-quality films often have uneven, uneven surfaces. Combined with poor construction quality, this can lead to uneven refraction of light, causing eye pain while driving.
Use and maintenance of new cars with heat-insulating film
Newly installed window film should wait 48 hours before lowering the window to allow the film to bond firmly to the glass surface. Some types of window film require up to 72 hours. After that, limit the amount of time you raise or lower the window for the first 3 days.
In addition, users should avoid using glass cleaner within 7 days after applying the car window film. Cleaning the car window must also be done carefully, avoiding strong friction because over time, the film will peel off even though it was applied firmly from the beginning.
Even though the heat-insulating film has been applied, users still need to pay attention to the outside temperature to park the car in a cool, comfortable place. If the temperature inside the car is higher due to parking in the sun for a long time, you should open all the windows, turn on the fan and run it for about 20-30 minutes to let all the hot air out before closing the windows and turning on the air conditioner. Then the car with the film will cool down much faster than the car without the film.
