How to Tell if the Front Film is Metallic?
2 Answers
Use two glass cups and pour disinfectant into both. Cut a small corner of the film that contains certain metal components and soak it; fake metallic films will start to develop white edges around the perimeter. Use two glass cups and pour disinfectant into both. Cut a small corner of the film that contains certain metal components and soak it; fake metallic films will start to develop white edges around the perimeter.
I've been applying window films myself for years and have a practical tip: When driving, look at the glass reflection from a bright angle—metalized films will show a blue or silver sheen, while regular films appear dark gray. Another method is to test with a smartphone: press the phone tightly against the film; if the navigation signal weakens or becomes unstable, it might be due to metal layer interference with electronic devices. For maintenance, avoid using rough cloths on the film surface, as metalized films are prone to scratches that can affect performance. If unsure, consult the film shop or seller—they usually have simple test pens to detect metal content. This is crucial because while metalized films offer excellent heat insulation, they may block emergency call signals, compromising driving safety. Regularly check the film's condition to ensure peace of mind while driving.
