Tommy Tape Self-Fusing Silicone Mast Boot Wrap, 4 in x 10 ft — UV & Salt Resistant

Tommy Tape Mast Boot Wrap is a self-fusing silicone tape that seals and protects keel-stepped masts from UV, salt, and water intrusion while remaining removable when you unstep the mast.

Designed for sailors and riggers, this self-amalgamating silicone tape creates a durable, adhesive-free barrier around keel-stepped masts to reduce leaks and shield components from sun and salt damage. Made in the USA and rated for extreme temperatures, the wrap fuses to itself on installation and provides season-long protection without leaving sticky residue when removed.

How does this tape prevent leaks around a keel-stepped mast?

The tape forms a single, seamless sleeve by bonding to itself rather than using an applied adhesive. That self-fusion creates a flexible, watertight barrier that conforms to mast sections, packing, and hull penetrations to limit water intrusion.

• Self-amalgamating silicone bonds into one continuous layer.
• Conforms to irregular shapes for tight sealing at the mast base.
• No adhesive means no sticky residue on mast or deck components.

Will it hold up to sun, salt, and temperature extremes?

Yes — the silicone compound is formulated to resist UV degradation, salt spray, and oils, and it tolerates a broad temperature range so it stays flexible in cold and stable in heat. This makes it suitable for seasonal use in varied climates without cracking or falling apart.

• Withstands -65°F to +500°F for reliable performance.
• UV- and salt-resistant to prevent material breakdown.
• Maintains elasticity so it won't split under rig movement.

How do you install and remove the Tommy Tape Mast Boot Wrap?

Installation is straightforward: stretch and wrap the tape around the mast overlap as you go so the silicone fuses to itself. To remove, simply cut through the fused layer and unwind when the mast is unstepped; there’s no adhesive residue to scrape off.

• Stretch and overlap as you wrap to achieve self-fusion.
• Easily trimmed with a knife for a neat finish at top and bottom.
• Removes cleanly when the mast is unstepped — no sticky cleanup.

What size coverage and material benefits does the 4 in x 10 ft roll offer?

The 4-inch width and 10-foot length give enough material to wrap typical mast boots and nearby fittings with multiple overlaps for a watertight seal. The silicone composition stays flexible and resists aging, so a single roll typically protects one mast for the season with some spare length for repairs.

• 4 in width provides broad coverage for most mast boots and collars.
• 10 ft length allows multiple overlapped layers for secure sealing.
• Silicone construction offers long-term flexibility and weather resistance.

Who is this for: Sailors, riggers, and boat owners with keel-stepped masts who need a reliable, removable sealing solution that handles sun, salt, and temperature extremes. If you want a clean, adhesive-free wrap that fuses into a watertight sleeve and can be removed when you unstep the mast, Tommy Tape’s self-fusing silicone mast boot wrap is purpose-built for seasonal use, emergency repairs, and preventative maintenance.