International coatings giant PPG Industries (NYSE: PPG) has announced it will acquire High Point-based Ennis-Flint, a maker of pavement marking products, including paint, thermoplastics and other advanced traffic technologies. With its corporate office at 4161 Piedmont Parkway, Ennis-Flint operates Triad-area plants at 201 Old Thomasville Road in High Point and at 4500-4646 County Line Road in Thomasville.