High-Tech Paint Cools Walls by 25 Degrees

Heat Shield High-Tech Paint Cools Walls by 25 Degrees

2026-09-24 A guest post by Henrik Bork* | Translated by AI 4 min Reading Time

A new “super paint” from China cools buildings by up to 25 degrees (45°F)—without using any electricity. The paper-thin coating dissipates heat directly into the freezing cold of space via radiative cooling. The material is said to be durable, and mass production has already begun.

An innovation from China to combat extreme summer heat: A novel coating lowers temperatures.(Source: © AucArtStudio – stock.adobe.com_AI-generated) — An innovation from China to combat extreme summer heat: A novel coating lowers temperatures.
(Source: © AucArtStudio – stock.adobe.com_AI-generated)

Just paint it—and the heat becomes more bearable: Chinese scientists have developed a novel coating that can lower wall temperatures by up to 25 degrees Celsius in the summer, according to the Chinese science newspaper *Keji Ribao*.

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