False! A premium window film has a sophisticated scratch-resistant coating that increases the film’s durability to withstand normal wear and tear. However, if someone is determined to scratch the film, it will scratch, just like glass itself can be scratched with a little determination. Manufacturers of high-quality films warranty their films for 15 years in commercial applications and for life in residential applications. They also permit the use of ammonia-based cleaners like Windex to clean their films.