Self-Cooling Paint

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Self-Cooling Paint with Engineered Metaparticles

PARC, in collaboration with BASF, is developing an enhanced white paint that can ‘self-cool’ in broad daylight, without the need for electricity or consumption of water. The current R&D effort is focused on maturing the technology and applying it to cooling of living and working spaces. This novel white paint consists of engineered metaparticles, which simultaneously reflect broadband sunlight and dissipate heat in the mid-infrared spectral window. By tailoring the optical properties of the coating, a surface temperature of up to 10 °C (18 °F) below ambient temperatures can be achieved during daytime.

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