BoatLIFE LifeSeal Sealant – Black
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
BoatLIFE LifeSeal Sealant – Black
LifeSeal is a premium polyurethane/silicone hybrid sealant engineered for fiberglass boats. It bonds fast, stays permanently flexible, and holds up above and below the waterline. The black finish makes it the natural choice for dark hulls, teak-trimmed decks, and any application where a bold, finished bead is preferred over a neutral or clear sealant.
Key Features
- Fast-skinning formula — skins in approximately 10 minutes, fully cures in 24 hours
- Permanently flexible and non-shrinking for long-lasting watertight seals
- Outstanding adhesion to fiberglass, glass, plastic, and wood
- Acid-free, non-yellowing, and UV resistant — black finish holds color over time
- Suitable for use above and below the waterline
Compatible Applications
- Through-hull fittings on dark or black hulls
- Teak deck seams and teak-trimmed hardware bedding
- Black port lights, hatches, and windshield frames
- Deck hardware on dark-colored or painted decks
- General fiberglass sealing and bonding where a black finish is preferred
Parts Desk Insights
Best Use Case: LifeSeal Black is the go-to choice for teak deck surrounds, black port lights, and dark hull hardware where a color-matched bead matters aesthetically. It’s also commonly used on outboard motor cowlings and black-trimmed helm stations. For white gelcoat decks, consider BoatLIFE LifeSeal Sealant – White (SKU 76-1170). When a completely invisible bead is needed, see BoatLIFE LifeSeal Sealant – Clear (SKU 76-1171). For permanent polysulfide bedding of teak or through-deck hardware, the BoatLIFE Life-Calk Marine Polysulfide Sealant line is the traditional choice. To remove old sealant before applying, use BoatLIFE Release Adhesive & Sealant Remover as a prep step.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.