3M Smog-reducing Granules enable roofing materials to reduce NOx
The 3M Industrial Mineral Products Division recently launched 3M Smog-reducing Granules to help remove NOx using roofing shingles. Integrated throughout a shingle’s surface, 3M’s roofing granules are designed with a specialized photocatalytic coating applied to the base mineral. The specialized coating on the granule is activated by the sun’s UV...
source https://plus.google.com/100177690899685511569/posts/hjxqJDiAmaW
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