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What is the difference between second-generation and fourth-generation car films?

1 Answers

KiaraLee

07/25/25 4:34pm

Here is an introduction to the differences between second-generation and fourth-generation car films: 1. Thermal insulation performance: Second-generation films either have high light transmission with poor thermal insulation or good thermal insulation that affects light transmission. Their high reflectivity creates a mirror-like appearance, causing light pollution, and they are prone to oxidation. In contrast, fourth-generation films can largely avoid these drawbacks. 2. Advantages: Second-generation films use new adhesives and thicker layers to improve explosion-proof effects, while fourth-generation films evenly distribute various precious metals on PET substrates through magnetron sputtering technology. They selectively filter visible light while blocking infrared and ultraviolet rays, offering high thermal insulation, high light transmission, high sun protection, low reflectivity, and high toughness, which increases the glass explosion-proof coefficient for safer driving.

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