If you have ever touched a sun-baked wall and pulled your hand away, you know why this matters. A team at Singapore’s Nanyang Technological University (NTU) has created a paint that cools by absorbing and evaporating moisture. A model house painted with this new paint was more than 4.5°C cooler than the same house painted with conventional white paint, without consuming a single unit of electricity, according to the study titled ‘Passive cooling paint enabled by rational design of thermal-optical and mass transfer properties’ published in Science on June 5, 2025.
Why conventional cooling paints struggle
