Nonreusable—Nonreusable film has an adhesive back, so it can only be applied once. Use it on any single-pane window or double-pane windows up to 40 sq. feet in size.

Reusable—Reusable film clings to a window’s surface with water, so you can peel it off, rinse it, and apply it again. Use this film indoors on single-pane windows. If it’s used on double-pane, wire, or tinted windows, heat can build up and crack the glass.

White—White film is semi-clear. It’s difficult to see through, but it lets in light.

Black—Black film blocks the most light—it’s also known as blackout film.

Silver—Silver film has a light-reflecting surface on both sides. It reflects sunlight during the day, so you can see out but others can’t see in. This is reversed at night, when the film reflects the lights in your facility.