'Cool blue' could be the new 'green'

'Cool blue' could be the new 'green'

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by Keely Chalmers, KGW Staff

kgw.com

Posted on July 19, 2012 at 6:46 PM

Updated Friday, Jul 20 at 11:27 AM

Scientists at Oregon State University have discovered new "colors" that reflect heat.

Chemistry professor Mas Subramanian first discovered a blue pigment three years ago. Subramanian recently learned that the dark blue pigment also had unusual chemical characteristics that reflected heat.

It was beautiful and vibrant, and unlike most other pigments, non-toxic. But that wasn't the only thing that made the blue so “green.”

If used on rooftops or building walls, the pigment could actually keep structures naturally cooler, dramatically increasing their energy efficiency.

“Compared to the blues we know today, like cobalt blue for example, these can reflect at least forty percent more than what is being done today,” explained Subramanian.

The professor has also developed other "cool" colors including greens, browns, even orange.

Several companies are now testing the paints for potential commercial use.

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