Over time, this coating becomes almost opaque and real ugly to look through.
The owner of this unit has tried to remove it, as seen in the bottom left corner. It was taking forever!
We got called and in less than one hour, 3 large windows were back to normal glass to look through!
The film is becoming streaky and is visible more at certain time of the year, usually in winter. This particular window film was installed around 16 years ago, so is well past its expected life time.
We removed all the film and adhesive and tinted it again with new film, without damaging the glass.