Graffiti window film is designed to be applied to glass, mirror or stainless steel surfaces. The film acts as a sacrificial barrier – protecting the targeted surfaces from graffiti and etching. There are 4 mil and 6 mil products available. The thicker film will act similar to the glass when a key or sharp surface comes in contact, ultimately disguising the damage. Remove the film, then replace it and eliminate the cost of glass, mirror and stainless steel replacement.