Bainbridge Mast Boot Tape provides a quick way to seal an existing mast boot or create a new one. The UV resistant PVC material is self-bonding and will not leave behind a sticky residue when removed. The 100 mm (4") tape forms a watertight / air tight barrier (with sail track and other cavities in the extrusion sealed) that remains flexible to maintain the seal. Stop a leaky mast boot or create a custom seal using Bainbridge Mast Boot Tape. One roll is enough to seal most masts on boats up to 12 m / 40 ft.