[RahulNagaraj]

Nissan, in partnership with Radi-Cool - a Chinese company, has developed a new exterior car paint, which claims to aid in cooling.

Development of the new 'Cool Paint' technology reportedly commenced in 2021, with over 100 samples developed and evaluated. In November 2023, a 12-month feasibility study was started at the Tokyo International Air Terminal, involving the application of the paint to All Nippon Airways (ANA) Nissan NV100 ground vehicles.



As per Nissan, the trial was a success, with the cars having a noticeable difference in exterior and interior temperatures. When parked side-by-side, under the sun, the car with the new cool paint tech had a 21.6-degree Fahrenheit reduction in exterior temperature. During the same test, the interior of the car was also cooler by 9 degrees Fahrenheit compared to cars with conventional paint.

The new 'cool paint' technology from Nissan is said to use metamaterials. Of these, the first particle reflects near-infrared rays, which on normal paint causes molecular level vibrations within the resin, resulting in heating. The second particle creates electromagnetic waves, which counteract the sun's rays and redirect them away from the car's surface.

https://www.youtube.com/watch?v=EXi9nrLWtAA

Nissan's newly developed cool paint can be applied via a spray gun and even incorporate the required clear topcoat. However, the paint tech is said to be six times thicker than regular automotive paint. Nissan though, is confident in its future applications and that it could be available for special orders in a variety of colours.

Link to Team-BHP news

[lordrayden]

Going by Nissan's recent history with the launch of the X-Trail here, if they ever get this technology to India, it will be called "somewhat cool paint" and only lower car temperature by 0.5 degrees, not the full 9 degrees .

[self_driven]

I remember watching a comparison on white vs black cars on Youtube, where the recorded exterior temperature on white car was almost 50 degrees lower than black. So the fact that they are able to bring down another 20 degrees on a white car is actually impressive.

[argho]

This is very much required in India. Cars parked in the sun become ovens.

Also need something similar fo rwindshields. A special glass which doesn't heat up.

[Sandy2345]

Ah! The much needed comeback of the term "innovation" in the automobile industry which has been missing for quite some time!

This would be a proper hit in India provided the paint shops make it available as an option in their catalogs.

[lemedico]

This paint, and factory installed UV + IR cut glass, should be mandated by Mr. Gadkari. Imagine the fuel savings the nation will make by not having to idle hot cars while the air-conditioning makes it bearable to be seated in.