PITTSBURGH–(BUSINESS WIRE)–PPG (NYSE:PPG) today marked the completion of a $7.8 million investment at its Coatings Innovation Center in Allison Park, Pennsylvania, just 20 minutes from its global headquarters in Pittsburgh. (Additional content is available at http://newsroom.ppg.com/coatingsinnovation.) The upgrades to the facility include increased laboratory and testing space and upgraded equipment that improves the technical capabilities of the company’s primary research and development fa