Rock Wool Manufacturing Company, founded in 1943, manufactures a wide range of products for industrial, commercial, marine and pipe insulation. Its DELTA marine boards are used for various marine applications, including insulating for bulkheads, wall and ceiling assemblies. The company s DELTA lamella is manufactured with perpendicular orientated mineral wool and is used for various pipes, cylindrical ducts and storage tanks. Located in Leeds, Ala., Rock Wool Manufacturing Company distributes its products through a network of sales representatives in the United States. Its Web site features price sheets, packaging data and contact details. The company s Web site also features material safety data sheets.