Bronze Window Tinting Films Enhance the external appearance of your glass with a subtle copper effect, and provides excellent solar heat rejection. Adhesive is water-activated. Not recommended in combination with other color films. NOTE: THE 20% VLT VERSION OF DELUXE BRONZE IS NOT RECOMMENDED FOR DUAL-PANE WINDOWS. Note: People outside will be able to see in through this film whenever the light inside the window is greater than it is outside. For example, an office building that you can't see into during the day, may allow you to view people working at night in their offices. In this situation, the amount of privacy will be determined by the VLT (visible light transmission) of the film. A lower VLT will reduce (but not eliminate) the visibility of anything inside the window.