Best Bottom Paint 2021 - Top 10 Picks

This is the ultimate buyer's guide to finding the right bottom paint to suit your needs. We review the 10 bestbottom paint on the market so you know that your next decision will be a smart one!

When you're trying to select the good bottom paint, there are a lot of factors to consider. This page has everything you need to know in one place.

This guide will help you avoid the pitfalls that come with researching bottom paint.

You don't have to try out every bottom paint to find one that meets your needs. After extensive research and hours of in-person tests, we've found the best bottom paint to be TotalBoat JD Select Ablative Antifouling Bottom Paint for Fiberglass, Wood and Steel Boats (Black, Gallon). There are a lot of sub-par products out there, but this product is one of the highest quality you'll find. Next best option is TotalBoat - 413458 Krypton Copper Free Antifouling – Marine Ablative Boat Bottom Paint | For Fiberglass, Wood, Aluminum & Steel Boats | Ideal for Outdrives & Trim Tabs (White, Gallon).

Choosing the bottom paint can be a daunting task, especially if you're doing it for the first time. Here's what we recommend based on our extensive research. We've compiled a list of the highest rated bottom paint. The following products are some of the best you can get right now.

List of Top 10 Bottom Paint

Review of Best Bottom Paint

1. TotalBoat JD Select Ablative Antifouling Bottom Paint for Fiberglass, Wood and Steel Boats (Black, Gallon)

  • ANTIFOULING PAINT FOR BOATS: Unique hybrid paint film keeps barnacles, weeds and slime from clinging to the bottom of your power boat or sailboat for a full season; ideal for fiberglass, wood and steel boats in salt water and fresh water
  • ABLATIVE MARINE PAINT: Self-polishing coating wears away gradually as the boat moves through the water; minimizes bottom paint build up so you have less sanding to do next season; durable finish can be burnished for smoothness, speed & fuel efficiency
  • LOW ODOR, LOW VOCs, EASY CLEANUP: Water-based formula has no toxic fumes, low VOC content, and cleans up easily with soap and water; it's ideal for use in marinas and boat yards with environmental restrictions; no maximum dry time before launch
  • EASY TO APPLY BY BRUSH, ROLLER OR SPRAY: Brush - natural bristle; Roller - 3/16” nap or foam solvent-safe cover; Spray - airless or conventional; if needed, thin with water, up to 10%; apply 1-2 thin coats; no sanding needed between coats
  • AVAILABLE IN BLACK, BLUE, GREEN & RED COLORS in Quart and Gallon sizes; Coverage: 500 sq. ft. per gallon. Compatible with most previously applied bottom paints: Apply over existing ablative or hard bottom paints; for use on boat bottoms & hulls below waterline only

2. TotalBoat - 413458 Krypton Copper Free Antifouling – Marine Ablative Boat Bottom Paint | For Fiberglass, Wood, Aluminum & Steel Boats | Ideal for Outdrives & Trim Tabs (White, Gallon)

  • COPPER-FREE, HIGH-PERFORMANCE MARINE ANTIFOULING BOAT BOTTOM PAINT provides superior single-season protection against barnacles, weeds, algae & slime.
  • KRYPTON CAN BE APPLIED TO FIBERGLASS, WOOD, STEEL, IRON & ALUMINUM BOATS. Bottom paints are for use below the waterline only.
  • BRIGHT COLORS ARE MORE VIBRANT THAN BOTTOM PAINTS CONTAINING COPPER BIOCIDE.
  • EASY TO APPLY BY BRUSH, ROLLER, OR SPRAYING: For brushing, use a high-quality, natural bristle brush; for rolling, use a 3/16” nap or foam solvent-safe roller cover. Copolymer formula means that after application, there’s no maximum dry time to launch. So you can paint in the fall, store for the winter, and launch in the spring! You can also haul and relaunch without losing the effectiveness of the biocide.
  • AVAILABLE IN FIVE BRIGHT, VIBRANT COLORS: Blue (Quart & Gallon), Black (Quart & Gallon), White (Quart & Gallon), Green (Gallon only), and Red (Gallon only). Coverage: 500 sq. ft. per gallon.

3. TotalBoat Underdog Marine Antifouling Bottom Paint for Fiberglass, Wood and Steel Boats (Black, Gallon)

  • ECONOMICAL ANTIFOULING BOTTOM PAINT PROVIDES EXCELLENT FULL-SEASON PROTECTION: Keeps barnacles and other marine fouling organisms from clinging to your hull bottom; ideal for sailboats, power boats, fishing and work boats in all types of saltwater conditions
  • ABLATIVE MARINE BOTTOM PAINT RELEASES FRESH BIOCODE CONTINUOUSLY to combat marine fouling & reduce paint buildup; Underdog is most effective on boats used frequently; durable finish withstands trailering & beaching better than traditional ablative paints
  • USE ON PROPERLY PREPARED FIBERGLASS, WOOD, STEEL, IRON, AND PREVIOUSLY PAINTED SURFACES IN GOOD CONDITION. Because the ablative coating wears away during the season, there's no paint buildup, which makes your bottom paint job easier next season
  • EASY TO APPLY BY BRUSH, ROLLER OR SPRAYING: Use a natural bristle brush, a 3/16” nap or foam solvent-safe roller, or use airless or conventional spray equipment. THINNING (10%): brush/roller - TotalBoat Special Brushing Thinner 100; spray gun - xylene
  • AVAILABLE IN GALLON SIZE IN BLACK, BLUE AND RED COLORS. Coverage: 500 sq ft per gallon; this product is a marine paint intended for antifouling use on boats, applied to hulls and boat bottoms below the waterline only. It is not intended for household use

4. TotalBoat JD Select Ablative Antifouling Bottom Paint for Fiberglass, Wood and Steel Boats (Black, Quart)

  • ANTIFOULING PAINT FOR BOATS: Unique hybrid paint film keeps barnacles, weeds and slime from clinging to the bottom of your power boat or sailboat for a full season; ideal for fiberglass, wood and steel boats in salt water and fresh water
  • ABLATIVE MARINE PAINT: Self-polishing coating wears away gradually as the boat moves through the water; minimizes bottom paint build up so you have less sanding to do next season; durable finish can be burnished for smoothness, speed & fuel efficiency
  • LOW ODOR, LOW VOCs, EASY CLEANUP: Water-based formula has no toxic fumes, low VOC content, and cleans up easily with soap and water; it's ideal for use in marinas and boat yards with environmental restrictions; no maximum dry time before launch
  • EASY TO APPLY BY BRUSH, ROLLER OR SPRAY: Brush - natural bristle; Roller - 3/16” nap or foam solvent-safe cover; Spray - airless or conventional; if needed, thin with water, up to 10%; apply 1-2 thin coats; no sanding needed between coats
  • AVAILABLE IN BLACK, BLUE, GREEN & RED COLORS in Quart and Gallon sizes; Coverage: 500 sq. ft. per gallon. Compatible with most previously applied bottom paints: Apply over existing ablative or hard bottom paints; for use on boat bottoms & hulls below waterline only

5. Rust-Oleum Available 207012 Marine Flat Boat Bottom Antifouling Paint, 1-Quart, Black

  • Ideal for use on fiberglass, wood or steel surfaces to prevent fouling below the waterline
  • Formulated to slowly release copper in order to prevent fouling
  • Able to recoat in 4 hours, to launch in 16 hours and covers up to 110 sq ft
  • Protective coating resists buildup of barnacles, algae and other marine growth
  • Hard, smooth finish provides a flat sheen over most aged antifouling coatings

6. TotalBoat Spartan Antifouling Bottom Paint for Boats - Multi-Season Protection for Fiberglass, Wood and Steel (Blue, Gallon)

  • MARINE BOTTOM PAINT FOR MULTI-SEASON PROTECTION IN HIGH FOULING CONDITIONS: High copper content (38% cuprous oxide) for maximum antifouling protection against barnacles & slime for sailboats & power boats in fresh, salt and brackish waters
  • SMOOTH, ABRASION-RESISTANT FINISH FOR MAXIMUM PERFORMANCE: Offers maximum speed and fuel efficiency; can be burnished for a racing finish; advanced copolymer ablative formula offers continuous antifouling protection whether the boat is at anchor or underway
  • HAUL AND RELAUNCH WITHOUT REPAINTING: Hauled your boat for longer than 2 weeks? Simply scuff lightly to reactivate this paint's antifouling properties; ablative formula reduces paint buildup, which means no heavy sanding next time you apply bottom paint
  • EASY TO APPLY, DRIES FAST: Apply by brushing, rolling or spraying on fiberglass, wood, steel and previously painted surfaces in good conditions. THINNING: Brush/roller application - TotalBoat Special Brushing Thinner 100; spray application - xylene
  • AVAILABLE IN BLACK, BLUE, GREEN & RED COLORS in Gallon size; Black and Blue are also available in Quarts; Coverage: 500 sq ft.per gallon; NOTE: There is no maximum dry time before launching

7. Interlux YBB379/1 Fiberglass Bottomkote NT Antifouling Paint - Black, Gallon

  • Optimizes the benefits of hard and ablative paints through a unique Dual Resin approach
  • Coating prevents premature wear-through yet a slow polishing action minimizes unnecessary paint build-up
  • Surface continuously smoothes with use, providing a fast, fuel efficient coating
  • Cost effective choice for all power and sail boats and in all waters
  • Paint Color: Black

8. TotalBoat Alumipaint AF Aluminum and Pontoon Boat Bottom Paint (Black, Gallon)

  • COPPER-FREE ANTIFOULING PAINT for superior single-season protection on pontoons & aluminum hulls.
  • ABLATIVE PAINT wears away to continuously expose fresh biocide for maximum protection.
  • SPECIFICALLY FORMULATED FOR PONTOON & ALUMINUM BOATS. Bottom paints are used below the waterline only.
  • EXCELLENT PERFORMANCE ON OUTDRIVES & RUNNING GEAR. Copper-free formula won't cause galvanic corrosion.
  • AVAILABLE IN QUARTS & GALLONS, IN YOUR CHOICE OF BLACK OR BLUE. Coverage: 500 sq. ft. per gallon (125 sq. ft. per quart)

9. TotalBoat JD Select Ablative Antifouling Bottom Paint for Fiberglass, Wood and Steel Boats (Red, Quart)

  • ANTIFOULING PAINT FOR BOATS: Unique hybrid paint film keeps barnacles, weeds and slime from clinging to the bottom of your power boat or sailboat for a full season; ideal for fiberglass, wood and steel boats in salt water and fresh water
  • ABLATIVE MARINE PAINT: Self-polishing coating wears away gradually as the boat moves through the water; minimizes bottom paint build up so you have less sanding to do next season; durable finish can be burnished for smoothness, speed & fuel efficiency
  • LOW ODOR, LOW VOCs, EASY CLEANUP: Water-based formula has no toxic fumes, low VOC content, and cleans up easily with soap and water; it's ideal for use in marinas and boat yards with environmental restrictions; no maximum dry time before launch
  • EASY TO APPLY BY BRUSH, ROLLER OR SPRAY: Brush - natural bristle; Roller - 3/16” nap or foam solvent-safe cover; Spray - airless or conventional; if needed, thin with water, up to 10%; apply 1-2 thin coats; no sanding needed between coats
  • AVAILABLE IN BLACK, BLUE, GREEN & RED COLORS in Quart and Gallon sizes; Coverage: 500 sq. ft. per gallon. Compatible with most previously applied bottom paints: Apply over existing ablative or hard bottom paints; for use on boat bottoms & hulls below waterline only

10. INTERLUX - Fiberglass Bottomkote NT, Paint For Fiberglass Boats, Antifouling Paint For Boats, Marine Paint For Fiberglass Boats, Antifouling Bottom Paint in Blue

  • Optimizes the benefits of hard and ablative paints through a unique Dual Resin approach
  • Coating prevents premature wear-through yet a slow polishing action minimizes unnecessary paint build-up
  • Surface continuously smoothes with use, providing a fast, fuel efficient coating
  • Cost effective choice for all power and sail boats and in all waters
  • Paint Color: Blue

Last update on 2021-12-04 / Affiliate links / Images from Amazon Product Advertising API

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