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 ...