Aluminum foil based flashing tapes are used as self adhesive tapes that are required for repairing of pipe joints, gutters and glazing systems. These tapes have modified bitumen based adhesive backing to be used for surfaces made of meta, concrete, brick, wood, polymer and slates. Such sealant tapes can also be used for skylight and chimney utilization purpose, These adhesive tapes are suitable for repairing cracked tiles and roof claddings caused by various external factors. Flashing tapes are also suitable for terrace and exterior wall sealing purpose. During construction projects, these self adhesive tapes are used for hermetic sealing of doors and windows.