Smart Tint ® Smart Film ® USA Factory Direct Wholesale. Smart Tint® switchable film™ applies to any new or existing glass allowing instant control from clear to frosted (private) with the click of a switch. Dim it, Trim it, Project on it, Blocks 99% UV, Easy to install. Smart Cling® Self Adhesive Technology is available in 7 colors and is the next generation in switchable privacy glass film!