Water-based Ultra-white Paint for Passive Radiative Cooling

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While white paints are commonly used to improve passive radiative cooling of surfaces, they are often made using volatile organic compounds (VOC) which can pose both health and environmental risks. Researchers at Purdue University have formulated a water-based ultra-white paint that greatly reduces the amount of VOC present making it suitable for a wider range of applications. This paint can enable energy cost reduction and thermal improvements while also being safe around people and the environment. This makes it ideal for homes and roofs in warm climates, or in other applications where solar heating is a concern.

Technology Validation:
This technology has been validated through the fabrication testing of a sample of the formulation.

- Water based
- Strong cooling performance
- Self-cleaning and water resisting behavior
- Enhanced mechanical strength

- Roof coatings
- Architectural/decorative coatings
- Pipe coatings
Nov 30, 2022
Provisional-Gov. Funding
United States
Purdue Office of Technology Commercialization
The Convergence Center
101 Foundry Drive, Suite 2500
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org