Keeping boating affordable means looking closely at the things we buy every season. Bottom paint is a good example: a familiar name on the can is useful, but the ingredients, application requirements, and price deserve a look too.
We love the value offered by Seachoice Yacht Shield. To show why, we compared it with TotalBoat Spartan, another multi-season ablative aimed at boaters maintaining their own boats.
A lower gallon price, with familiar antifouling chemistry
Our black, one-gallon Yacht Shield is $164.80. TotalBoat lists its black, one-gallon Spartan at $229.99. That puts Yacht Shield $65.19 lower per gallon, or about 28%, based on the listed prices checked October 23, 2026.
Both use cuprous oxide as the antifouling ingredient and offer a coating that gradually wears away. Yacht Shield lists 33.4% cuprous oxide; Spartan lists 37.5%. That is a 4.1 percentage-point difference in concentration.
For us, this is what makes Yacht Shield worth considering: a lower price per can, the same type of active ingredient, and the multi-season features many boaters are looking for.
Yacht Shield vs. TotalBoat Spartan
| What we compare | Seachoice Yacht Shield | TotalBoat Spartan |
|---|---|---|
| Black, one-US-gallon price | $164.80 at PartsDuck | $229.99 at TotalBoat |
| Listed cuprous oxide | 33.4% | 37.5% |
| Paint type | Multi-season ablative | Multi-season ablative |
| Water types | Fresh, salt, and brackish | Fresh, salt, and brackish |
| Aluminum hulls | Not suitable | Not suitable |
| Published coverage reference* | 335 sq. ft./gallon at 3 mils dry film | 500 sq. ft./gallon at 1.5 mils dry film |
Prices checked October 23, 2026, before tax and any shipping charges, without coupon codes. Prices and offers can change. Cuprous oxide percentages are not metallic copper percentages. *Yacht Shield coverage above comes from the Yacht Shield registered label; Seachoice's product listing gives approximately 330 sq. ft./gallon. Spartan specifications come from its technical data sheet. Follow the current label on the product you buy.
Compare the whole painting job
The coverage numbers use different dry-film thicknesses, so they need to be read alongside each product's required coat schedule. Spartan lists more area per gallon at a thinner specified coat. Work out the gallons needed for your hull using each product's directions before comparing the total paint bill.
While ingredient percentages are useful, they do not tell the whole performance story. The complete formula, preparation, applied film thickness, and conditions in your marina matter. Our recommendation here comes from comparing the published specifications and current pricing; shared ingredients do not establish identical performance.
Why we still love Yacht Shield
Yacht Shield offers the features we want to see in a practical bottom-paint option: a polishing ablative coating, multi-season use, and the ability to haul and relaunch without automatically recoating. Seachoice also permits application up to six months before launch, subject to the label's preparation and drying requirements.
That flexibility is useful when you are trying to fit maintenance around work, family, and the weather. Inspect the coating before relaunching and address worn or damaged areas; multi-season paint still needs enough sound coating left on the hull.
For a boater whose hull, existing coating, and application plan suit Yacht Shield, its $164.80 gallon price makes it an option we are happy to recommend. Helping customers find that kind of value is a big part of why PartsDuck exists.
Check your hull before choosing
Yacht Shield is intended for properly prepared fiberglass, wood, and properly primed metal hulls, excluding aluminum. Confirm compatibility with your existing paint and follow the current label for preparation, protective equipment, application, and launch timing.
We carry black in the one-gallon size, part 94721G. Yacht Shield is not available for sale in California or Canada.
See Seachoice Yacht Shield at PartsDuck. If you need help choosing, tell us what boat you have, what paint is on it now, and where you keep it.
What matters most when you buy bottom paint: price, local results, or staying with a brand you know? We would like to hear what has worked on your boat.
