PPG Industries Inc. said Monday it would acquire Hi-Temp Coatings Technology Co. Inc. of Boxborough, Mass., for an undisclosed sum. The privately held company makes high-temperature-resistant and insulative coatings that protect carbon steel and stainless steel for the energy, paper and utility industries. Financial terms of the deal, which is expected to close in the first quarter, weren't announced. "Hi-Temp’s unique technologies bring multiple growth opportunities to PPG, particularly in…
