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Boat Bottom Antifouling Paint

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Kolor™ Bright Color Bottom Paint
When you leave your boat in water, scum, algae and barnacles can eat away at the bottom of your boat. Protect your precious investment with a couple …
List price: $74.14
Starting at $37.01
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Copper Shield™ Ablative
Powerboat Reports Winner Blue Water anitfoulants dominated in 6 month paint tests conducted independently by Powerboat Reports in March, 2009. Blue …
List price: $52.27
Starting at $26.09
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Copper Shield Hard™
Powerboat Reports Winner Blue Water anitfoulants dominated in 6 month paint tests conducted independently by Powerboat Reports in March, 2009. Blue …
List price: $41.33
Starting at $20.63
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Copper Shield SCX™ Boosted Ablative
Powerboat Reports Winner Blue Water anitfoulants dominated in 6 month paint tests conducted independently by Powerboat Reports in March, 2009. Blue …
List price: $68.67
Starting at $34.28
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Copper Shield Uno™
Powerboat Reports Winner Blue Water anitfoulants dominated in 6 month paint tests conducted independently by Powerboat Reports in March, 2009. Blue …
List price: $39.77
Starting at $19.84
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Copper Pro SCX™ Hard
Powerboat Reports Winner Blue Water anitfoulants dominated in 6 month paint tests conducted independently by Powerboat Reports in March, 2009. Blue …
List price: $84.30
Starting at $42.08
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Fiberglass Bottomkote With Irgarol
Features: Hard type antifouling Proven all purpose antifouling protection Irgarol®™ improves antifouling performance by reducing slime …
List price: $49.99
Only $25.67
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Copper Pro SCX™ Boosted Ablative
Powerboat Reports Winner Blue Water anitfoulants dominated in 6 month paint tests conducted independently by Powerboat Reports in March, 2009. Blue …
List price: $90.55
Starting at $45.21
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Trilux 33 with Biolux Antifouling Paint
Don’t let fouling affect your boat’s performance and safety. The Trilux 33 with Biolux Antifouling Paint effectively prevents your boat …
List price: $87.99
Starting at $67.31
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Pontoon Paint Pro by Pettit
Pontoon Pro is an excellent pontoon paint and acts as an anti-fouling paint and protects the aluminum from even the most basic forms of corrosion. …
List price: $314.89
Only $244.51
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Fiberglass Bottomkote Aqua Antifouling Paint
Premium Yacht Enamel is a fast drying, high quality topside finish. It has superior hiding characteristics and excellent adhesion to properly …
List price: $62.99
Starting at $39.50
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Pettit Horizons Ablative Antifouling Bottom Paint
Features: Ablative Technology Reduces Coating Build-up Launched and Relaunched without Repainting Economically Priced for Multi-season Protection …
List price: $92.39
Starting at $75.59
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Interlux Micron CSC Antifouling Paint
Uses Micron® Technology to provide excellent, long lasting antifouling protection against all types of fouling. Controlled polishing rate …
List price: $81.99
Starting at $59.86
In stock
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Interlux Pacifica Plus Antifouling Paint
Pacifica Plus - is designed for those looking for a copper free antifouling. Pacifica Plus is a dual biocide antifouling that uses outstanding …
List price: $41.99
Starting at $32.12
In stock
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Duplex Boosted 67 Antifouling Blue Water Marine Paint
Duplex Boosted 67 - Multi-Season - Dual Resin Boosted Ablative / Hard (67% Copper, 2% SCX) Duplex™ Boosted 67 uses a dual resin technology …
List price: $64.94
Starting at $49.45
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Duplex Boosted™ 45 Antifouling Blue Water Marine Paint
Duplex Boosted 45 - Multi-Season - Dual Resin Boosted Ablative / Hard (45% Copper, 2% SCX) Duplex™ Boosted 45 uses dual resin technology that …
List price: $49.94
Starting at $40.45
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Duplex™ 45 Antifouling Blue Water Marine Paint
Duplex™ 45 - Multi-Season - Dual Resin Ablative / Hard (45% Copper) Duplex™ 45 uses dual resin technology that provides a durable, fast …
List price: $38.69
Starting at $31.45
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New England Copper™ Antifouling Blue Water Marine Paint
New England Copper™ - Full Season - Ablative (25% Copper) New England Copper™ provides full season antifouling protection against …
List price: $21.19
Starting at $16.16
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Coronado Antifouling Blue Water Marine Paint
Coronado - Multi Season - Waterbased Copper-Free Ablative (5% Zinc Pyrithione) CORONADO™ is a high performance waterbased antifouling that …
List price: $39.94
Starting at $26.95
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Gold Coast SPC Antifouling Blue Water Marine Paint
Gold Coast SPC™- Multi Season - Self Polishing Copolymer (39% Copper, 3% Zinc Pyrithione Gold Coast SPC™ is a Self Polishing Copolymer ( …
List price: $68.69
Starting at $53.05
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Aqua Shield Antifouling Blue Water Marine Paint
Aqua Shield™ - Multi Season - Waterbase Ablative (45% Copper) Aqua Shield has a high copper content (45%) in a water base ablative technology. …
List price: $34.94
Starting at $26.95
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Interlux Fiberglass Bottomkote NT Antifouling Paint
Fiberglass Bottomkote® NT uses a dual resin technology that provides a universal durable, fast dry antifouling paint that delivers the benefits …
List price: $49.99
Starting at $37.49
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Pettit Paint Copper Guard Hard Antifouling Paint
List price: $161.79
Starting at $140.56
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Pettit Paint Trinidad 75 High Copper, Hard Antifouling Paint
List price: $303.89
Starting at $249.93
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Pettit Paint Trinidad Pro High Copper, Dual Biocide Hard Antifouling Paint
Pettit Trinidad Pro is simply the longest lasting, strongest antifouling paint available. Its hard protective coating has excellent adhesion and …
Starting at $289.04
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Sea-Mate Ablative Antifouling Paint - Pettit Paint
List price: $141.09
Starting at $112.43
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Pettit Paint Alumacoat SR Ablative Antifouling Paint for Aluminum
List price: $83.29
Starting at $54.31
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Ultima SR, Ablative Dual-Biocide Paint - Pettit Paint
Features: Dual Biocide, Multi-season Protection No yearly build-up of paint Relaunch without Repainting Formulated to provide the best antifouling …
List price: $322.49
Only $265.55
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Hydrocoat (Pettit)
Features: Multi-season Ablative Minimal Odor, Easy Clean-up with Water Used on all new Sea-Ray Boats Ablative finish reduces coating buildup through …
List price: $87.89
Starting at $74.19
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Sr-21 Slime Resistant Fresh Water Antifouling (Pettit)
Features: Thin Film Technology using Dual Biocides No-Drag Coating for Increased Speed Easy to Apply and Quick to Launch Super slick finish contains …
List price: $88.99
Starting at $56.78
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Flagship Varnish (Pettit)
Features: Recommended for the highest quality work Withstands severe weather conditions on salt or fresh water. Contains highest level of UV …
List price: $37.59
Starting at $28.47
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Copper Bronze Antifouling (Pettit)
Features: Cuprous oxide for agressive antifouling protection Hard, modified epoxy finish withstands season-long use and abuse Compatible with most …
List price: $106.59
Starting at $81.47
In stock
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Boating Know How
Interlux Antifouling Paint

Selecting Antifouling Paint

Anti-fouling paint is a coating that is applied to the hull of a vessel that fights off the growth of organisms that could attach to the hull, thus prolonging the hull's life and performance. Anti-fouling paints are ... read more made of copper biocides that help to keep organisms like barnacles, seaweed, and tube worms from sticking to the hull. It is better to use paint to prevent this happening instead of trying to find a cure once the hull has been attacked.

Selecting an antifouling paint comes down to the boater's preference and the hull style of their boat. There are three main paint styles to choose from:

1. Ablative

This type of paint is very basic in its specifications. It is good for build-up resistance and does not require little to no sanding. It is compatible with a majority of hulls and bottom paint finishes. With this application, the surface of the hull may be susceptible to wear away with time, which exposes fresh biocides and may be harmful to water life. This may be best for freshwater applications.

2. Hard

Hard antifouling paint is a much stronger, more durable paint that allows boats to be stored in the water for extended periods of time and be protected by the biocides. The coat leaves a fine, smooth finish and can withstand beaching and abuse.

3. Vivid

Vivid antifouling paint is the toughest, most durable of these three applications. It is made with high-quality technology that lasts through any season and is excellent for trailering and dry storage. It is highly resistant to build-up and decay on the hull, and comes in a variety of colors. Vivid paint would work well in salt water environments.

We recommend researching these different paint types in depth and deeply considering each option before making any purchases. We also suggest consulting with a technician or a local dealer to get a second opinion and recommendation.

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boat bottom paint ablative paints

Ablative Paints and How They Work (Video)

Learn what ablative paints are and how they work, presented by Interlux. ... read more



Video Transcript

I’m Jim Seidel from Interlux. We’re here in a boatyard looking around, talking about problems people have painting the bottoms of their boat.

Okay, this is a brand new paint job. It’s probably painted last week, maybe even Saturday, and then it rained, we got a lot of rain, and you could see it streaking down the boat. It’s very typical of ablative anti-fouling paint. This does not affect the way the anti-fouling works. It’s just not pretty, especially if you put on a two-hundred dollar gallon of paint.

Right now, it looks bad because it’s right here and you just did, and you spent a couple hours painting the bottom of the boat and getting it all prepared, spending a day, but that’s what caused it, and that’s one of the things about ablative paints. They do change color.

Ablative means “to wear away” and there’s a bunch of different ways paints wear away like our old red hand or that type of paint we painted the arc with as with real soft rosin-based coating’s been around. You could shake the boat and get a cloud of paint around the boat. It was very, very soft.

Then we have the top of the line, the Micron 66 that wears away chemically with the reaction of salt in the water. The Micron CSC and the Micron Extra, there’s a physical action of wearing through the water and they act the same way. You do that, you control that by the mixing of a rosin and resin and rosin is less expensive than resin, so if you want a cheaper paint, you put more rosin than resin, but it wears away faster.
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About Boat Bottom Antifouling Paint

Boat Bottom Paint Essentials

Article courtesy of Tim Banse
Interlux Product
You already know that without bottom paint dutifully protecting the bottom of a boat that barnacles, zebra mussels, weeds and slime would proliferate dragging down acceleration, top speed and helm response. And that in order to inhibit marine growth we rely on quality boat bottom paint. But the big question is with the different types of anti-fouling lining the shelves of marine chandler's which one is the best choice for your boat? The answer is that in order to sort through the many offerings, it's vital to understand the basic differences between them. Only then can you intelligently pick the right product for your boat and its geographic area of operation. In this story we'll cover the basics and suggest a couple of boat bottom paints. Unfortunately there isn't room to cover the myriad of brands and offerings.

Types of Bottom Paint


Let's begin at the beginning. Know that there are two basics types: ablative and hard, each one boasting distinctive properties. Soft ablative boat bottom paints release biocide at a constant rate throughout their life span, scrubbed away with use much like a bar of soap. One benefit to this scrubbing action is that as the biocide is used up the coat goes away. This characteristic reduces buildup, which in turn reduces the amount of surface preparation required before applying a new coat.

Pettit Marine Paint's Ultima SR-60 is an example of ablative boat bottom paint. It's loaded with copper (60%) and also dual biocides (slime resistant Irgarol) lending multi season protection.

Pettit Boat Bottom Paint
In sharp contrast to ablative blends, hard bottom paints rely on contact leaching. Once it dries, the bottom is blanketed with a porous film saturated with biocides. The biocide releases in steadily decreasing amounts. Once exhausted, the hard film remains. Generally speaking, boats with hard anti-fouling coatings cannot be hauled and launched without repainting. One benefit to a hard anti-fouling coat is resistance to abrasion. Due to its low drag resistance, hard bottom products are an excellent choice for high performance boats.

Another offering is Pettit Trinidad SR, it's a hard anti-fouling blend offering multi-season protection thanks to dual biocides backed up with a high copper load. Left in the water, a bottom painted with Trinidad SR will enjoy years of protection.

So far we've given examples of ablative and hard boat bottom paints. How about one that incorporates all the benefits of both ablative and hard paints in one? That would be Pettit's multi-season Vivid offered in a palette of bright colors, including white, blue, green, yellow black and red.

Think whiter whites and blacker blacks. Primary colors can be applied as-is, or blended to create a custom color. Its hard, smooth surface withstands trailering and is easily burnished for lower drag, a godsend on high performance boats. When applied over the recommended priming system Vivid can be used on aluminum hulls and outdrives.

Blue Water Product
No matter what type or brand you decide on, it's crucial to painstakingly follow directions. Read the label, paying careful attention to the part about surface preparation. At a minimum the existing paint, which provides the foundation, must be in good condition - without flakes. Sand the entire bottom with 60 or 80-grit sandpaper, roughening the surface and lending the new coat a foothold. Question: Is this dirty, time-consuming surface preparation a Do-It-Yourself endeavor? Not if you can afford to pay the boatyard to do it.

Do It Right The First Time


Make sure the old anti-fouling and the new bottom paint are compatible. Consult the manufacturers chart. Thoroughly stir paint before and during application. Usually, the store will perform an initial shake-shake-shake with its shaker. For good reason marine supply stores will only shake cans that have never been opened. That said, even when you stir by hand with a flat wooden stick, five or 10 minutes should be sufficient to get all the biocide in suspension. The first few strokes with the stick will be difficult because the heavy compounds settle to the bottom. Be patient. And be sure to scrape down the sides of the can and the bottom to flow all of the ingredients into suspension. Stir the paint frequently during application to prevent settling.

It's absolutely critical that you follow over-coating times and immersion times. In other words, allow the product to dry thoroughly before applying another coat and before launching. If you don't, you risk the specter detaching from the hull, and all the time, energy and money you'll have spent will have been wasted. Finally, when finished, dispose of the empty cans in an environmentally friendly manner. If you're in doubt about how to do this, any boatyard will be able to tell you the proper procedure.

Tim Banse is a marine engines expert and has written about propulsion for Popular Mechanics, Yachting, Motor Boating, Boating Industry and other publications around the world. His current pet project is www.MarineEngineDigest.com, a source for free information about outboard motors, stern drives and inboards. Tim's articles will be seen here and in the iboats.com blog, plus at www.MarineEngineDigest.com.
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