Interlux Fiberglass Bottomkote Aqua - MW
Interlux Fiberglass Bottomkote Aqua Antifouling Boat Bottom Paint
For a tough, eco-friendly antifouling solution, you can't beat Interlux Fiberglass Bottomkote – it delivers excellent protection with a smooth, durable finish. This water-based formula resists barnacles and algae while providing fast-drying, low-odor application – perfect for DIY boaters. It's easy to clean up with soap and water and adheres well to fiberglass hulls, ensuring long-lasting performance in both saltwater and freshwater. Interlux Fiberglass Bottomkote has a hard, fast-drying finish that minimizes paint buildup, making future maintenance a breeze. Available in blue or black, it's an ideal choice for boaters looking for reliable antifouling without the harsh solvents.
- Solid protection against all types of fouling, including zebra muscles
- Colorfast durable finish
- Reduced emissions, low odor
- Easy clean up with soap and water
- Thinner film, less paint build-up
- Finish: Matte
- Number of Coats: 2-3
Associated Products
- Interlux Fiberglass Solvent Wash 202-To clean bare fiberglass prior to application.
- Interlux Fiberglass Surface Prep YMA601-Water Base cleaner for bare fiberglass.
- Interlux Watertite YAV135-Epoxy Filler for filling and fairing.
***WILL SHIP GROUND ONLY TO THE CONTIGUOUS 48 STATES ONLY***
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How To Apply
APPLICATION DATA METHOD: Brush, Conventional Spray, Roller
NUMBER OF COATS: 2-3
DRY FILM THICKNESS PER COAT: 2 mils (5.4 wet mils)
COVERAGE: 400 sq. ft/gal.
APPLICATION TEMP: 40°F Min. / 95°F Max.
THINNER: Water
| Temp | To Touch | To Recoat | To Launch |
| 95°F | 1/2 HR | 2 HR | 6 HR |
| 73°F | 2 HR | 4 HR | 6 HR |
| 59°F | 2 HR | 5 HR | 8 HR |
PREVIOUSLY PAINTED SURFACES: In Good Condition Remove old flaking paint. Wet sand with 80 grade (grit) paper. Rinse with fresh water and allow to dry. In Poor Condition Remove antifouling paint in poor condition with Interstrip 299E.
BARE FIBERGLASS: Scrub the surface thoroughly with soap and water using a stiff brush. Apply Fiberglass Surface Prep YMA601V with a 3/8"" nap roller on surface to be de-waxed, work in 10x10 foot areas. Ensure YMA601V is removed before drying. Scrub Fiberglass Surface Prep YMA601V using a 3M Doodlebug™ and a brown Scotch-Brite® pad. Once all areas have been thoroughly scrubbed, use wet rags or spray down with high pressure rinse to remove all traces of Fiberglass Surface Prep YMA601V. Change rags frequently. Wipe down with clean cloths. Repeat the cleaning process until water no longer beads. Surface must be clean and dry prior to application of Fiberglass Bottomkote® Aqua.
BARE FIBERGLASS - NO SAND: Prepare surface as described above. Apply the Fiberglass Bottomkote® Aqua within 4 hours of cleaning. If this time is exceeded, rinse with fresh water and allow to dry. If exceeding 2 months between de-waxing and painting, repeat cleaning prior to application of Fiberglass Bottomkote® Aqua.
BARE WOOD: Clean with Special Thinner 216. Sand with 80 grade (grit) paper. Clean with Special Thinner 216. Repair any defects with Watertite Epoxy Filler. Lightly sand and wipe clean. Surface must be free from all contamination. Fill seams, if necessary, with Seam Compound Brown 30. Apply first coat of Fiberglass Bottomkote® Aqua thinned with clean water (do not add more than 10% by volume).
UNDERWATER METALS: All substrates must be primed, clean and dry. All preparation for bare substrates is covered on the appropriate primer labels. Contact Interlux® for further details.
DO NOT USE THIS PRODUCT ON ALUMINUM HULLS AND OUTDRIVES.
APPLICATION INFORMATION: Do not apply thin coats. If during application the brush pulls or the roller drags, add small increments of water to improve handling (do not add more than 10% by volume). Apply 2 coats for full protection. BARE WOOD: Apply 3 coats of Fiberglass Bottomkote® Aqua. Fiberglass Bottomkote® Aqua can be applied to most popular antifouling paints as long as the old coating has been aged, is tightly adhered and is in sound condition. Do not apply Fiberglass Bottomkote® Aqua over soft or tin-based copolymer antifoulings. Do not use on aluminum.
Click here to download Interlux Fiberglass Bottomkote Aqua Data Sheet
Frequently Asked Questions
What kind of protection does Interlux Fiberglass Bottomkote Aqua provide?
Interlux Fiberglass Bottomkote Aqua is a water-based antifouling bottom paint designed to provide durable protection against marine growth, including barnacles, algae, and zebra mussels. Its hard, fast-drying finish helps reduce paint build-up and supports easier future maintenance.
Is Interlux Fiberglass Bottomkote Aqua easy to apply and clean up?
Yes. Interlux Fiberglass Bottomkote Aqua is formulated for easy application by brush, roller, or conventional spray, and cleanup can be done with soap and water. It is also low odor and water based, making it a good option for DIY applications.
How many coats of Interlux Fiberglass Bottomkote Aqua should be applied?
Interlux recommends applying 2 to 3 coats depending on the surface and application. For full protection, 2 coats are generally recommended, while bare wood applications call for 3 coats.
How quickly can Interlux Fiberglass Bottomkote Aqua be launched after application?
Minimum launch time depends on temperature. At 95°F and 73°F, the minimum launch time is 6 hours. At 59°F, the minimum launch time is 8 hours.
Can Interlux Fiberglass Bottomkote Aqua be used on aluminum hulls or outdrives?
No. Interlux Fiberglass Bottomkote Aqua should not be used on aluminum hulls or outdrives.
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