Frequently Asked Questions about Automotive Window Film

Below are some of the most common questions we are asked. If you have a question that is not addressed here, please call our office or contact us online.

  • Q: How long does it take to tint my vehicle?

  • A: The amount of time varies, depending on your type of vehicle. A complete car can take 2 to 4 hours. Full-sized trucks generally take between an hour and an hour and a half. A set of front doors usually only takes 30-45 minutes. If old aftermarket film has to be removed, that can add anywhere from 30 minutes to half a day.
  • Q: Can window film reduce glare?

  • A: Yes. Glare not only can cause eye fatigue, but it can also be dangerous when driving. It reduces the amount of light allowed through the film, therefore allowing you to see better and not stress your eyes.
  • Q: Do I need to wait to roll my windows down?

  • A: We recommend that you leave your vehicle windows rolled up for at least 24 hours after window film has been installed. This allows the film to cure and adhere to the glass before the window is moved.
  • Q: How do I clean my windows?

  • A: We recommend waiting for at least 1 week before cleaning the inside of any windows we installed film on. Then you can use any window cleaner without ammonia and a soft cloth or rubber squeegee. We prefer foam cleaners because they streak less and are usually ammonia free. Never use anything abrasive or scraper blades, as it will scratch the film.
  • Q: Can window film be matched to vehicle factory window tint?

  • A: In most cases yes, depending on how old the film is and whether or not a color stable film was used.
  • Q: Does old aftermarket window film need to be removed before installing new?

  • A: Old film will need to be removed before installing new window film. It is always best to have the old film removed by a professional, as the rear defroster can be easily damaged. The process does add 2 – 4 hours of labor, and there is a charge for the removal. We recommend dropping your vehicle in the morning and let us call you when the job is completed.
  • Q: Can aftermarket window film be installed over factory window tint?

  • A: As long as it is factory window tint, which is a color in the glass, then after market window film can be installed directly on the glass. Aftermarket window film has many more solar benefits than factory window tint. Aftermarket window film rejects 99% of ultraviolet rays and between 35%-60% of heat, depending on the film level used. Plus, adding aftermarket tint over factory tint can give you more privacy for storing personal items in the back of a vehicle.
  • Q: Will the film affect my rear defroster, or will my rear defroster affect the film?

  • A: No, window film nor the car’s rear defroster will be affected.
  • Q: Do I have to come to your location to have my vehicle tinted?

  • A: Glass Tint USA only installs window film on vehicles inside our clean, air-conditioned facility. This way we have complete control over the environment we install window film in. This is how you receive the most quality job.
  • Q: What is the legal limit of tint in Missouri?

  • A: Missouri allows for a 35% light transmission on the front doors of any vehicle registered in Missouri. They allow any level of film behind the front doors and along the top of the front windshield, down to the AS-1 line. The percentage does vary by the state where your vehicle is registered.
  • Q: Is the tint applied on the outside of the window?

  • A: In most cases, window film is installed on the inside of the glass. This allows for maximum durability. On vehicles, the window tint is hand-cut on the outside of the glass, then installed on the interior of the glass.