Is Car Film Applied on the Outside or Inside?
2 Answers
Car film should be applied on the inside of the car glass. Below is a detailed introduction to car film: 1. Reasons for applying car film on the inside of the car glass: Applying it on the inside protects it from wind and rain, slowing down the aging process and thus extending its lifespan. Additionally, the film is less exposed to external disturbances during use, reducing the risk of scratches or damage. Without exposure to weather elements, the adhesion remains stronger, preventing issues like peeling edges. 2. Benefits of applying film: Heat insulation and sun protection. The film effectively blocks a significant amount of heat generated by infrared rays. UV protection. Medium and long-wave ultraviolet rays can penetrate thick glass, but applying heat-insulating film can block most of them, preventing skin damage and reducing the aging of car interiors. Safety and explosion-proof. The base layer of the film is made of polyester, which has excellent tear and puncture resistance. Combined with the adhesive layer, the film enhances the strength of the glass, preventing injuries from accidental glass breakage to drivers and passengers.
I've applied films to several cars before, and it only works when applied on the inside. On the outside? That's a no-go—it easily bubbles or gets scratched during rain or car washes, with a very short lifespan. When I first started DIY, I tried applying it on the outside, and it peeled off in less than a week, wasting money for nothing. Applying it on the inside is much simpler: first, clean the inner glass surface with alcohol to ensure it's dust- and grease-free, then slowly lay the film flat and use a squeegee to remove bubbles. The best choice is heat-insulating and UV-protective film, which can save on air conditioning costs and protect the interior from sun damage. Remember, professional shops can handle it for you—don’t mess around yourself to avoid compromising driving safety or leaving stubborn adhesive residue. Applying film isn’t a trivial matter; doing it in the wrong position can cause issues, like fogging that obstructs visibility, making driving dangerous. In short, inner application is the standard—consult experienced drivers or shop recommendations for the right products.
