Window film

A window film, sometimes called window tint, is a thin laminate film that can be installed on the interior or exterior of glass surfaces in automobiles and boats, as well as on the interior or exterior of glass in homes and office buildings. It is usually made from polyethylene terephthalate (PET), a thermoplastic polymer resin of the polyester family, due to its clarity, tensile strength, dimensional stability, and ability to accept a variety of surface-applied or embedded treatments.

Window films are generically categorized by their construction components (dyed, pigmented, metallized, ceramic, or nano), by their intended use (automotive, marine or architectural), by substrate type (glass or polycarbonate), and/or by their technical performance (privacy, solar control, safety and security).

Window film is normally installed by professional service companies or installers, but DIY kits are also widely available.

The International Window Film Association, founded in 1991, provides unbranded information about window films.