How to Identify Genuine 3M Film?
1 Answers
3M film should be pressure-sensitive adhesive film, meaning it only exhibits adhesive properties under continuous external pressure. The small 3M watermark text on genuine film has clear edges and distinct outlines, while counterfeit film shows blurred edges and indistinct characters. When genuine film is applied to windows and viewed against backlight from the side, the surface texture appears fine and smooth. Counterfeit film displays skin-like patterns and looks rough.