How Much Heat Can Car Window Tint Block?
2 Answers
The heat insulation performance of car window tint varies depending on specific conditions. Here are the details: 1. Windshield Film (with 70% light transmission requirement): Approximately 55%: Top-grade spectrally selective film. Around 40%: Mid-range film with decent performance. About 30%: Standard film with poor heat insulation, not very suitable for windshields. 2. Side Window Film: Approximately 70%: Mostly high-quality metal films, predominantly dark-colored, though exceptions exist like V-KOOL V40 which is very light but offers excellent heat insulation. Around 50%: Conventional products with good performance, providing adequate heat insulation for side windows.
The effect of car window tinting is actually quite good. After applying the film myself, I felt much cooler. There's a significant difference in heat insulation capability among different types of films. Basic films can block 40% to 60% of heat, while higher-end ceramic films can reach 80% to 95%. It mainly depends on the infrared rejection rate and total solar energy rejection rate indicators. For example, after summer sun exposure, the interior temperature is noticeably lower by five to ten degrees, so you don't need to set the air conditioning too high, which can save some energy costs. The quality of the film is crucial—cheap ones tend to age and deteriorate easily, while expensive ones like nano films are long-lasting and durable. I recommend paying attention to brand test reports when choosing a film and avoiding judging solely by color darkness. After applying the film, it not only insulates heat but also reduces UV damage to seats, extending the lifespan of the interior. In short, choosing the right film can make driving more comfortable, especially in hot southern cities.
