BUFFALO, N.Y. — A thin film that reflects light in intriguing ways could be used to make road signs that shine brightly and change color at night, according to a study published on Aug. 9 in Science ...
PITTSBURGH--(BUSINESS WIRE)--PPG (NYSE:PPG) today announced the introduction of PPG ENVIROCRON™ LUM coating, which is the industry’s first commercial retroreflective powder coating. The patent-pending ...
A thin film that reflects light in intriguing ways could be used to make road signs that shine brightly and change color at night. The technology could help call attention to important traffic ...
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