Is the heat insulation film applied inside or outside the car?
3 Answers
Inside the car. The functions of automotive heat insulation film are as follows: 1. Thermal insulation: Blocks infrared radiation and absorbs a small amount of heat conduction, achieving relative insulation and indirectly reducing air conditioning load for energy saving. 2. UV blocking: Most mid-to-high-end heat insulation films on the market can block over 98% of UV rays, protecting the skin of drivers and passengers from UV damage, and more importantly, delaying premature fading, aging, and cracking of car interior items and leather. 3. Explosion-proof: High-quality automotive heat insulation films use special materials for the adhesive and plastic substrate, providing excellent adhesion and impact resistance, significantly improving safety by preventing theft, robbery, and collisions.
Car window tint films must be applied to the interior side of the glass for several reasons. As someone who has worked in automotive detailing for years, I've seen many cases where people attempted exterior installation, only for the film to get scratched or peel off onto the road, creating safety hazards. Interior application provides better scratch resistance and durability, while preventing air bubbles that could obstruct vision. The primary function of heat rejection films is blocking UV rays and infrared thermal radiation - if installed externally, accumulated rain and dust would significantly reduce effectiveness, plus it might add stress to the glass causing cracks. When selecting film, ensure its light transmittance complies with regulations; avoid excessively dark tints that compromise nighttime driving safety. Professional installation requires using a squeegee to eliminate all bubbles - properly installed film keeps the cabin noticeably cooler, saving long-term AC fuel costs. Ultimately, interior application is the industry standard that enhances driving comfort and overall vehicle living quality.
As an ordinary car owner, I'd like to share my experience. Last summer when I got window tinting, I also hesitated about whether to install it inside or outside. After researching, I found that installing it on the inside is definitely more reasonable. If installed on the outside, daily car washes or rainy weather can easily damage the film surface, affecting its heat insulation performance. After installing it on the inside, the car interior became noticeably cooler, making my commute much more comfortable without that stuffy feeling. I also noticed that good quality film provides privacy protection, preventing passersby from peeking at items inside the vehicle. For the installation process, I recommend going to a professional shop - they'll do it cleanly without bubbles, don't waste money trying to DIY. When choosing film, pick reputable brands and don't just go for the cheapest option. Avoid overly dark tints that might affect nighttime visibility. With proper installation, you'll enjoy improved comfort and a better driving mood.
