Buy Decorative Film's High Performance Sun Control Window Bronze Window Films are more effective in rejecting heat than traditional dyed films. Since these films are sputtered and contain no dye, they boast great efficiency in that they will not fade throughout their use. The copper contained in the Bronze window films provide a great barrier against solar energy by capturing and dispersing heat throughout the surface it is applied to. These window films are ideal for home/office windows that receive a great amount of sunlight and radiate a beautiful, natural color that will fill your interior with a bronze tint. Available in 20% (Dark), 35% (Medium), and 50% (Light), the Bronze series is excellent for blocking heat from the sun and providing an effective sun control.