PPG Industries, EETD Team up to Develop New Solar Reflective Pigments

April 2014

From PPG Industries' press release:

PPG Industries' industrial coatings business has received a $224,000 award from the U.S. Department of Energy (DOE) to help develop dark-colored pigments for cool metal roof and façade coatings that incorporate near-infrared (NIR) fluorescence and reflectance to improve energy performance.

The award is part of a $530,000 project that includes a $250,000 award to the Lawrence Berkeley National Laboratory (Berkeley Lab) to partner with PPG on the research and $56,000 in cost-sharing by PPG.


The goal of the PPG/Berkeley Lab program is to develop a more advanced class of dark-colored pigments that can convert a portion of the absorbed visible light energy into NIR energy that is radiated away from buildings.

The new pigment technology under investigation would be a significant advance over current cool-coating pigments. PPG and Berkeley Lab estimate that cool coatings based on the new pigment technology could achieve effective solar reflectance (ESR) values of 0.5 to 0.7 compared to ESR values of 0.1 to 0.3 for standard pigments. An ESR improvement of 0.4 and widespread deployment of coatings with these pigments for residential applications in warm and hot areas of the U.S. could save up to $1.3 billion annually in related energy costs.

Read the rest of the release at the link below.