How Does Car Window Tint Reduce Heat?

How does a car window tint work exactly? Window tint is designed to prevent the harmful thermal rays from passing through the windows. Specifically, the technology behind it is designed to block certain wavelengths, while allowing others to enter.  The tint filters the amount of radiation entering the car interior by blocking the infrared radiation, allowing the visible natural light to filter through.

According to, infrared radiation is the heat energy that emanates from the sun. This type of energy is what heats up the interior of the car. Window tint is also designed to filter and block out harmful Ultraviolet light that burns our skin from too much exposure.

Natural light doesn’t burn or heat up the car. This is the type of radiation that a car window tints allows to pass through.

There are different types of car window tint. The ability of a window tint to block heat depends on its type, make, shade and the percentage of heat rejection.

A good window tint often provides over 75% of heat rejection.  If you are looking for a standard amount of tint protection, go with the normal window tint which should provide at least 35% heat rejection.

In conclusion, car window tint does work to keep thermal rays from entering the car’s interior. This can allow for better and comfortable drives and a longer lasting interior.