Innovative ‘Cool Paint’ Technology by Nissan: All You Need to Know

The Japanese automaker Nissan has partnered with a Chinese-based firm - Radi-Cool to produce an innovative automotive-centric body paint, which claims to decrease the cabin’s temperature by up to ten (10) degrees! 

The project of making the ‘Cool Paint’ technology was reportedly commenced in 2021, and the joint venture has developed and evaluated hundreds of samples. Speaking of trials, a 12-month feasibility study was conducted in November 2023 at the Tokyo International Air Terminal, which involved the application of this paint to All Nippon Airways (ANA) Nissan NV100 ground vehicles. 

Reportedly, the Nissan company claimed that the trials were successful, as the cars coated with this innovative paint witnessed a noticeable difference between the exterior- and interior- temperatures. On a sunny day, the company parked two cars side-by-side, and only one car was coated with the ‘Cool Paint’, and it was observed that the vehicle with the new paint technology had a 21.6-degree Fahrenheit reduction in car’s exterior temperature, as a result, the car’s cabin temperature was also cooler by 9-degrees Fahrenheit. This made the car far cooler than its counterpart with conventional paint. 

Materials and Application

Nissan’s new ‘Cool Paint’ is said to be made of metamaterials. Among them, the first particle reflects near-infrared rays, making it unlike the regular paint that causes vibrations with the resins at the molecular level. In parallel, the second particle of the ‘Cool Paint’ releases electromagnetic waves, which are resistant to sun rays, thereby redirecting the heat away from the car’s surface. 

As for application, the ‘Cool Paint’ can be applied on the vehicle’s surface by using the spray gun, but also requires a clear topcoat. Nissan claims that this state-of-the-art body paint is six times thicker than mainstream automotive paint. Last, but not least, the Japanese automobile manufacturer is confident that they’ll use this technology in the future, plus it might even be available in different colours on special requests. 

 

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