Interlux Fiberglass Bottomkote Antifouling Paint | Black, 1 Quart
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Interlux Fiberglass Bottomkote Antifouling Paint — Black | 1 Quart
Protect your fiberglass hull from marine growth with Interlux Fiberglass Bottomkote — a hard-finish antifouling bottom paint formulated specifically for fiberglass boat hulls. Bottomkote lays down a smooth, durable coating that resists barnacles, algae, and other fouling organisms throughout the boating season, keeping your hull clean and your boat performing at its best.
Unlike ablative paints that wear away with use, Bottomkote’s hard finish holds its surface season after season, making it a good choice for boats that are kept in the water for extended periods or trailered regularly. It can be applied by brush, roller, or spray and is compatible with standard Interlux primers and thinners.
Key Features
- Part number: INT-779-QT
- Size: 1 quart
- Color: Black
- Hard-finish antifouling formula — durable, season-long protection
- Formulated specifically for fiberglass hulls
- Resists barnacles, algae, and marine fouling organisms
- Apply by brush, roller, or spray
Best Use Case
Best suited for fiberglass powerboats and sailboats kept in the water for extended periods in freshwater or saltwater environments. Bottomkote’s hard finish is particularly well-suited for boats that are trailered or hauled regularly, as it does not require reactivation by immersion the way ablative paints do. Always prepare the hull surface properly before application — clean, sand, and prime as required per the Interlux application guide. Apply at the temperature and humidity conditions specified on the product label, and allow full cure time before launching.
Parts Desk Insights
Bottom paint is a high-value seasonal purchase — customers typically buy in the spring before launch or in the fall before haul-out. When a customer selects Bottomkote, ask about their hull size to help them estimate coverage and whether they need a gallon instead. For customers needing a self-polishing ablative option, point them toward the Interlux Micron CSC Antifouling Bottom Paint Black Quart or the Interlux Micron 66 Black Gallon. For thinning and brush cleaning, cross-sell the Interlux 333 Brushing Liquid Thinner & Cleaner. For the gallon size of Bottomkote CA, see the Interlux Bottomkote CA Black Gallon.
Available Sizes & Related Bottom Paints
- Interlux Bottomkote CA Antifouling Paint — Black, Gallon
- Interlux Bottomkote CA Antifouling Paint — Black, Quart
- Interlux Micron CSC Antifouling Bottom Paint — Black, Quart
- Interlux Micron 66 Antifouling Paint — Black, Gallon
Application Supplies
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.