Dupont solar film signs

Dupont solar film identification method is as follows:

1. Look at the thermal insulation performance of the film: Dupont film adopts high-performance polyester film, so the car film has good thermal insulation performance. Compared with the fake film, the thermal insulation performance of waste film is very different.

2. See if there is any odor on the film: Generally, the film will emit odor after being used for a period of time. Dupont film has no odor. You can smell it next to the car. The stink is a fake film.

3. Look at the transparency of the film: Dupont film has good transparency, clarity and no ambiguity, and good one-way sight. The general film will be unclear, fuzzy and even blistering.

4. Check the performance parameters measured by the store instrument: when measuring with the store instrument, confirm whether the attached film meets the performance parameters to prevent the bad merchants from changing the packaging.

I hope the above information can help you identify the authenticity of DuPont solar film.