17 synthetic rubber for use in the manufacture of tires, cable, paper; sealant compounds for joints; junctions not of metal for water pipes; plastic pipes for plumbing purposes; plastic in bars, blocks, pellets, rods, sheets and tubes for general industrial use; compositions to prevent the radiation of heat; acoustical insulation barrier panels; acoustical insulation for buildings; fiberglass boards and pipes for heat preservation; building insulation; foam sheeting for use as a building insulation; asbestos fabrics for use as cable insulation; water proof packings; insulating paints