​Nissan Developing Cool Paint Technology

Nissan has been testing a groundbreaking automotive paint designed to lower a vehicle's cabin temperature during the summer and reduce air-conditioning energy consumption. Developed in collaboration with Radi-Cool, experts in radiative cooling products, the paint utilises metamaterials, synthetic composites with unique, nature-defying properties. This initiative aligns with Nissan's commitment to pioneering innovations that enhance driving experiences and contribute to a cleaner, more sustainable future.

The cooling effect of the paint is especially evident when a vehicle is parked in the sun for long periods. A cooler cabin not only provides a more comfortable entry but also reduces the air-conditioning run-time needed to reach a pleasant temperature. This decreases the load on the engine or, in the case of electric vehicles, conserves battery power. Both powertrains are expected to see improved efficiency alongside enhanced occupant comfort.

Nissan's cool paint uses a metamaterial with two microstructure particles that react to light. One reflects near-infrared rays, reducing heat buildup, while the other emits electromagnetic waves that redirect the sun's energy away from the vehicle. Together, these particles help reduce heat transfer to surfaces like the roof, hood, and doors.

While radiant cooling paint has been used before, it's typically applied to buildings and structures, often in thick layers with a paint roller and without a clear topcoat, leaving a chalky residue when touched. In developing an automotive version, Dr. Susumu Miura's key challenges were ensuring the paint could include a clear topcoat, be applied with a spray gun instead of a roller, and meet Nissan's strict quality standards for automotive finishes.​

Since development began in 2021, Miura and his team have tested over 100 samples, focussing on a thickness of 120 microns, about six times thicker than standard automotive paint. They've confirmed resistance to salt, chipping, peeling, scratches, and chemical reactions, while maintaining colour consistency and repairability. The team is now exploring thinner options with the same cooling benefits.

Miura hopes the paint will eventually be available for special orders in various colours, with strong potential for light commercial vehicles like vans, trucks, and ambulances.

Discover the current Nissan range for yourself or for more information, please contact your local Yeomans Nissan dealership.