Tint does not cool a vehicle. However, it can help to reject heat for longer times. This helps to keep your cooled down car, cooler, longer.
However, not all window film can reject heat. Whether it blocks heat depends on the type of film you have installed on you car. Some tint is only manufactured to darken the glass and add privacy but wont actually block much heat. While some film blocks significant heat and adds privacy.
What type of film blocks heat?
To cool your vehicle, it’s important to remember that heat is caused by the sun but its not just from the light. It’s actually primarily caused by Infrared Rays. In order to reject heat, you’ll need to block IR (infrared) rays.