The researchers believe that this shade of white may be the polar opposite equivalent of the blackest black – known as “Vantablack” – which absorbs up to 99.9% of visible light. An earlier version developed by the Purdue team in October last year reflected 95.5% of sunlight. However, this latest version is even more efficient with up to 98.1% reflected and keeps surfaces even cooler.
Typical commercial white paint gets warmer, rather than cooler. Paints on the market that are designed to reject heat reflect only 80%-90% of sunlight and can’t make surfaces cooler than their surroundings.
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