Nissan develops a special paint that dissipates heat from cars

Summer is here, and with it, days of intense heat and intense sunlight. Parking your car in the sun while at the beach, the pool, or doing any other activity means having to endure hellish temperatures if you have to use the car, and driving becomes an unpleasant experience. But Nissan is working on a special paint prototype that can reduce the vehicle's ambient temperature, ensuring occupant comfort on the hottest days, reducing air conditioning use, and improving the performance of electric vehicles (heat is not a good friend of batteries).

Specifically, the Japanese brand works with a series of metamaterials made up of microstructural particles that react to sunlight by reflecting infrared rays and creating electromagnetic waves that counteract the heat-generating effect of light. During the paint presentation, Nissan compared the external and internal temperatures of a model with this special paint with those of a conventional model after both had been exposed to sunlight at Tokyo Airport. Thus, the model painted with the special paint recorded a reduction of 5.7°C in the external body temperature and a 3.3°C reduction in the interior temperature.

Nissan's invention still has significant room for improvement, as this special paint is denser and therefore thicker than conventional paint, and currently lacks a transparent top coat to protect it from the elements, scratches, minor impacts, or bird droppings, among other factors. The brand anticipates that this new paint could be efficiently implemented in its vehicles around 2028 or 2029, if testing and improvements continue as planned.