Do 3M Window Films cause glass to break?

The application of 3M Window Films will increase the temperature of your sunlit glass which will increase the stress on the glass edges. The quality of those glass edges and several other factors (external shading, interior shading, glass history, type of window film, size/shape of glass, indoor/outdoor temperature) all contribute to the potential risk of glass breakage.

3M's forty plus years of experience with applying 3M Window Films to different types of glass enables them to make proper window film/glass recommendations and minimize the potential for glass breakage. In addition, they support these recommendations with their 60-month glass breakage warranty against thermal shock fracture. Should the glass break within 60-months of application, 3M; will replace the glass (maximum $500.00), and Grand Glass Tint and Sound will replace the window film.