Is the rear window film applied on the inside or outside of the car?
3 Answers
Automotive rear window film is applied on the inside. The following is an introduction to automotive glass: 1. Introduction: Automotive glass is manufactured by heating the glass to near softening temperature in a furnace, then rapidly transferring it to air grids with varying cooling intensities for uneven cooling. 2. Function: This process creates different stress zones between the main viewing area and peripheral areas of the glass. Typically, glass produced this way is zone-tempered glass. 3. Application: The peripheral areas are positioned in the strong cooling zones of the air grids, requiring full tempering. These areas exhibit good fragmentation characteristics and high tempering strength. The main viewing area is located in the weak cooling zones, resulting in larger fragments and lower tempering strength.
Last time I tried applying window tint myself, I mistakenly put it on the outside of the rear windshield. It got ruined by rain in just a few days, completely wasted. The tint should actually be applied on the inside because the external environment is too harsh—exposure to wind, rain, and dust can easily cause bubbles or scratches. Applying it on the inside better protects the film layer, ensures stronger adhesion, and effectively blocks sunlight and heat, reducing air conditioning usage. Choosing high-quality tint is also crucial; professional brands are best. During installation, thoroughly clean the glass first, spray some water to adjust the position easily, then use a squeegee to smooth out bubbles. Regularly check if the tint is loose or discolored, and maintain it promptly to extend its lifespan and ensure clear visibility for safe driving.
From my experience, car rear window tinting must be applied on the inside. Applying it externally causes numerous issues - I once had my film scratched by tree branches, rendering it completely ineffective. Inner application avoids external interference, provides better adhesion between film and glass, and prevents peeling due to temperature changes or cleaning. Tinting isn't just for privacy and UV protection; it also lowers interior temperature and reduces glass shattering risks. During installation, work from inside out to ensure no wrinkles, and regularly clean the surface with a soft cloth to maintain light transmission. For long-term use, quality tinting offers excellent durability, saving money while providing peace of mind.
