In the most basic terms, if your tint has turned purple then you purchased a low quality window film.
There are many window film products on the market and the old saying, "you get what you pay for" goes without saying.
Purple window film is the result of a breakdown in the product. The three primary dye colors...blue, red and yellow together compose the films dark color. In a cheaper (say 3 year warranty film) the dyes are not color stable and the yellow is the first to deteriate, leaving behind the red and blue dye to create a purplish colored film.
All American Window Tinting chooses to sell and install only lifetime warranty films that are protected against this. Our warranty protects against peeling, bubbling and turning purple.
303.936.1362 to make an appointment.