Guangzhou GWF New Material Co., Ltd.

Guangzhou GWF New Material Co., Ltd.

How to choose car film? 2025 professional buying guide + tips to avoid pitfalls

2025 05/13

How to choose a car film? A complete guide to avoid pitfalls from materials to construction

As the number of cars increases, the car film market is expanding year by year, but the complaint rate caused by inferior products is rising simultaneously. How to choose a cost-effective car film in a complex market? This article analyzes professional purchasing methods for you from 4 dimensions.
4

1. Core parameters: Understand these indicators to avoid IQ tax

Ⅰ. Ultraviolet blocking rate: National standards require ≥99%, and products with actual measurements below 95% will accelerate interior aging
Ⅱ. Total solar energy blocking rate (TSER): High-quality thermal insulation film should reach 50%-70%, and the temperature in the car will drop 2℃ faster for every 10% increase in the value
Ⅲ. Visible light transmittance (VLT): The front windshield film must be ≥70% to comply with traffic regulations, and the side and rear windshields can be selected at 15%-30% to ensure privacy
Ⅳ. Infrared blocking rate: Focus on the 850nm band, and the real data needs to be checked in the third-party test report

2.Analysis of the characteristics of 4 mainstream car films

Magnetron sputtering metal film: lifespan of 8-10 years, stable heat insulation performance, may affect the signal, suitable for mid-to-high-end models.
Nano ceramic film: zero electromagnetic interference, environmentally friendly and non-toxic, decay cycle of about 5 years, first choice for new energy vehicles.
Dyed film: price as low as 300 yuan, fades after 1 year, easy to bubble, short-term transitional use.
Multilayer optical film: clarity 99%, safe for night driving, cost over 8,000 yuan, suitable for luxury car customization.

3.Avoid pitfalls during construction: 7 steps to check professional construction level

The dust-free workshop must be equipped with a constant humidity system (humidity ≤ 30%)
Use special film-sticking liquid (PH value 6.5-7.0)
The film must be cut using computer shaping technology
The baking temperature must be strictly controlled below 120℃
No lifting or lowering of windows within 48 hours after completion
A 2-3mm expansion joint is reserved on the edge
Provide an electronic warranty card

4. Rights protection guide: You can claim for these problems

Waves appear within 3 months: You can request re-sticking
After 1 year, the light transmittance drops by more than 15%: Trigger the warranty clause
Metal film causes ETC failure: The construction party needs to replace it free of charge
10 Year Warranty PPF TPU Paint Protection Film Glossy Clear tpu ppf  Film  Non Yellowing tph ppf Paint Protection Film2
You can choose GWF car film, our products include:PAINT PROTECTION FILMHEADLIGHT TINTWINDOW TINTCAR WRAPWINDOW FILM,  WINDOW FILM TOOls...