Florida’s Busiest Ferry Chooses Propspeed

Yankee Freedom III travels 150 miles a day, seven days a week. Propspeed is a no-brainer for keeping her running gear marine growth-free.

Environmentally Friendly
Reduces Marine Growth
Backed by Science

“Before using Propspeed, we had as much as 4 inches of growth on the propeller shaft. With Propspeed applied, our running gear is now free of growth.”

Rick Gauron

Captain, Yankee Freedom III

Yankee Freedom III is the official ferry of Dry Tortugas National Park, one of the world’s most unique eco-attractions, 70 miles from Key West, Florida.


The high-speed catamaran operates seven days a week, carrying passengers to the park’s seven small islands and its crown jewel, historic Fort Jefferson. Once used as a prison during the Civil War, the massive brick fortress is now one of Florida’s most popular tourist attractions, and its scenic surroundings and turquoise waters offer visitors ample opportunities for snorkeling and nature exploration.



Passenger ferry Yankee Freedom III travels daily to Dry Tortugas National Park, Florida Keys, all year round.

Passenger ferry Yankee Freedom III travels daily to Dry Tortugas National Park, Florida Keys, all year round.



As its name suggests, Yankee Freedom III is the third vessel in the fleet, having replaced Yankee Freedom II in 2012. The ferry covers 150 miles seven days a week year-round, with a working speed of 29 knots and passenger capacity of 175.


Prior to using Propspeed, the vessel had significant growth on its prop shafts, which caused severe strain on the engine. When a diver was sent down to inspect the running gear, he noticed as much as 4 inches of grey moss growing along the shaft. 


Yankee Freedom III’s captain, Rick Gauron, knew there was a solution out there, having heard rave reviews of Propspeed from boat owners throughout Florida and the Caribbean. The powerful adherence of Propspeed’s etch combined with the environmental benefits of using a biocide-free foul-release system rather than traditional antifoul made Propspeed the obvious choice.


Propspeed was promptly applied to Yankee Freedom III’s props and shafts at her next haul-out and is now an essential part of her servicing every year. She hasn’t had any marine-growth issues since.


Rick has become such a fan that he insists on having Propspeed on his 35-foot Henriques sport fisher to help protect his own running gear. 


Every year, Yankee Freedom III gets a new coating of Propspeed foul release to keep her running gear free of marine growth.

Every year, Yankee Freedom III gets a new coating of Propspeed foul release to keep her running gear free of marine growth.

What size Propspeed kit do I need?

The right kit for your needs will depend on the size of the area you’re coating. Our three kit sizes correspond to the following coverage areas:
200ml: up to 0.4m2 or 4.3ft2
500ml: up to 1m2 or 10.75ft2
1 liter: up to 2mor 21.5ft2


How does Propspeed work?

Propspeed is a foul release coating, not an anti-foul, so it doesn’t harm marine life. The top coat on the Propspeed system is an ultra-slick surface that marine growth can’t grip. Propspeed’s effectiveness does depend on movement of your boat - the more you use it, the better Propspeed performs. Propspeed sets itself apart from the competition with the exceptionally strong chemical and physical bond between the metal substrate, the primer and the top coat - this ensures that the Propspeed coating actually stays on your running gear.

Is Propspeed environmentally friendly?

Yes. Propspeed contains no copper, tin or any other toxic substances harmful to marine life.

How long does Propspeed last?

Propspeed will last at least a year, but many customers report another one or even two years service life. This depends on what sort of marine environment your boat is moored in, the water temperature, and how often you use it.

Will Propspeed lose its effectiveness if my boat is out on the water for a period of time?

No, provided the only maintenance given to the parts with Propspeed applied is a light wiping with a non-abrasive cloth, the boat can be hauled and launched multiple times, or left out for long periods without affecting the performance of Propspeed. If you are having the bottom of the boat high pressure washed ensure that any Propspeed coated parts are covered to prevent damage.

Can Propspeed protect against Zebra mussels and other freshwater growth?

Propspeed can be used successfully in fresh or salt water. As it’s a foul release, not a biocide or anti-foul, Propspeed relies on a slick surface - it doesn’t matter what sort of marine growth you have, it won’t be able to get a grip.

Can I apply Propspeed myself?

For best results we recommend Propspeed is applied by a trained applicator. See our applicator finder, or  or your haul-out facility may already have an arrangement with an applicator.

What is the shelf life of Propspeed

All Propspeed kits have a shelf life of 3 years from date of manufacture.
The date of manufacture should be clearly labelled on your kit and components

What parts on the bottom of the boat can be coated with Propspeed?

Propspeed can be applied to any metal part below the waterline, including propellers, shafts, struts, rudders, trim tabs and through hull fittings. You can also use the clear coat directly on plastic bow-thrusters.

Is Propspeed expensive?

Propspeed may cost more to buy than conventional anti-fouling paints, but the feedback we get constantly from boat-owners is that it pays for itself. By keeping the running gear free of marine growth, not only does it reduce the time spent cleaning at next haul-out, but it reduces your running costs by increasing your speed and reducing your fuel consumption

What sort of maintenance does Propspeed need?

None. The foul release formulation is self-cleaning as soon as the propeller starts up. If required, a light wipe with a non-abrasive cloth will remove any marine growth. When hauling out, ensure the Propspeed is wiped down with a non-abrasive cloth before any marine growth on the surface can dry. Water-blasting, scraping and other abrasive cleaning will damage the Propspeed and eliminate its effectiveness.

Will Propspeed affect the life of my sacrificial anodes?

The application of Propspeed greatly reduces the wetted metal surface and the positive outcome is that our customers are seeing an increase of vessel speed with less RPMs, fuel savings and, the protection from stray current damage resulting in longer sacrificial anode life. It has been observed by our customers that by using Propspeed on their running gear and propellers they have seen a dramatic reduction in corrosion to their underwater metals and that their sacrificial anodes are lasting longer..

How long after application of Propspeed until I can launch my boat?

A minimum of eight hours drying time is required after the final coat. This is based on an average air temperature of 15 deg C, or 59 deg F. If the air temperature is colder than this, a minimum of 24 hour curing time is recommended.