Find and Fix leaks
A penetrating sealant for hairline cracks


Traces and fills hairline cracks
Most leaks are caused by tiny cracks, often hidden to the eye. Formulated to be thinner than water, Captain Tolley’s actively draws into them using capillary action. Once in place, it makes a strong waterproof seal
Use on land and sea

- Portholes
- Hatch Seals
- Deck Fittings

- Window Seals
- Rivets
- Seams & Trim

- Worktop Joints
- Ceramics
- Window Fittings

Quick and Easy to use
Unlike normal glues and sealants there's no need to take anything apart. Just apply the sealant and it will travel to where it's needed




"Gets into holes and cracks
no other sealants can"Yachting World
"It works its way into
invisible openings and sets
- a holy grail"Griff Rhys Jones
(comedian & serious sailor)"Enables you to find your
leak and fix it without having
to tear things apart"Power & Motor Yacht
Further Information:
Our Story
Captain Tolley’s was developed by Peter ‘Tolley’ Jordan, an ex-ship’s captain with 30 years of experience at sea. Skippering boats in all conditions he discovered most leaks weren’t caused by large obvious gaps but by small, hard to fix hairline cracks…
