St. Paul, MN - H.B. Fuller Company (NYSE: FUL), a global leader in adhesives and sealants, has acquired GSSI Sealants, Inc., which specializes in butyl sealants for the metal building industry. Headquartered in Houston, Texas, GSSI will operate within H.B. Fuller’s existing Construction Adhesives business unit and is expected to expand the company’s global footprint and product range.