Insulating materials; sheets and sleeves in the nature of urethane sealants for encapsulating splices in electrical wires, electrical connectors, electrical splices and electrical terminal boxes for sealing and protecting purposes; wrappings in the nature of rubber tubing and tubing jacket and moulded articles in the nature of synthetic rubber, thermoplastic elastomer resins and flexible plastic tubes for insulation, protection, jointing, sealing and for splicing of electrical wires, cables, and connectors, and for use in the assembly of electrical, telegraphic and telecommunications apparatus and instruments, and for use in the assembly of wire, cable and optical fibres; cold, heat, vibration, split and fluid resistant polyurethane sealants; polymeric sheets, rubber heat shrink sleeves; rubber tubing, pipe jackets, not of metal; insulation jackets for industrial pipes; insulation jackets for pipes; adhesive lined tubing and wrappings lined and coated with sealant in the nature of electrical insulating materials and heat resistant and electrical insulating films, and adhesive sealants all for sealing and protecting wires, connectors, splices and terminals