Carbon film is new and advanced technology that is revolutionizing the window film world. Unlike dyed films, carbon film does not use any dyes, and instead uses a carbon filament technology where carbon is actually infused in the layer of film. Because this film is dye free, it comes with a lifetime no fade guarantee. It also will not interfere with electrical navigation and on-board computer systems like metal film will. This film is usually a bit more expensive than standard films, but also has upwards of 33% more rejection properties than standard films, including enhanced IR/UV protection, making the extra money spent well worth it.