McGill AirSeal manufactures duct sealants, adhesives and tapes. The company provides solvent- and water-based duct sealants for many types of ductwork, including fiberglass, flexible and sheet metal. Its products provide airtight seals in commercial, industrial and residential systems. McGill AirSeal s liner adhesives are ideal for spray and extrusion systems, as well as roller and brush applications. The company also offers a line of sealants and adhesives for specialty applications. It is a subsidiary of United McGill Corporation, a national business that specializes in engineering, manufacturing and field installation of construction products and industrial systems. McGill AirSeal is based in Columbus, Ohio.