17 Fire resistant and fire preventive articles and materials; materials for use in fire protection including the protection of cables and pipes in buildings; fireproof seals; barriers for protection against heat including fire barriers; packing, stopping and insulating materials; insulation materials, namely, fire resistant and retardant insulation for the prevention and control of, and resistance against, fire and heat; insulating materials for insulating against fire, heat and radiation including thermal activated insulating materials; fire collars and wraps containing fire resistant sealing, packing or insulating materials, for use with pipes and cables; fire resistant insulating materials for wrapping around ducts, pipes, access ways and tubes for preventing the spread of fire and smoke; fire resistant materials in the nature of fire barrier systems comprised of metal and fibre laminates for wrapping conduits, cable trays, and structural steel; insulating materials for packing around cables, ducts and pipes to insulate from fire; seals of non-metallic materials including fireproof seals for the prevention and control of, and resistance against, fire and heat