Save Time, Money & Fuel. Eliminate Barnacle Buildup for Good.
Keep your hull clean without frequent diver trips or constant scraping.
Hull Shield's ultrasonic antifouling technology protects your boat around the click - stopping barnacles and marine growth before it forms.
- 24/7 Automatic Protection
- Extend Bottom Paint Life
- Reduce Diver Bills & Maintenance Hassles
- Eco-Friendly & Safe for Marinas
Works on center consoles, sport fishers, trawlers, & yachts across the warm-water South & Gulf Coast.
How Ultrasonic Antifouling Stops Growth Before It Starts
The system sends safe, high-frequency pulses through your hull-creating microscopic vibrations that stop algae and barnacle larvae from attaching.
✅ Eco-Friendly: zero toxins or copper leaching into the marina.
✅ Easy Install: mounts inside the hull and connects to 12 V power - no through-hulls.
✅ Proven Results: extends bottom-paint life 1 to 2 year in warm-water zones.
✅ 24/7 Automatic Protection: runs quietly while your boat's in the water - no maintenance required.
Real Boaters. Real Results.
From the Chesapeake to the Keys, boat owners are eliminating diver bills and keeping hulls clean with Hull Shield ultrasonic protection.
Capt. Steve with Boat Test
Charleston, SC
"Every boat owner that I have spoken to LOVES Hull Shield!"
Alan Carter (The Wondering Hillbilly)
Los Angeles, CA
"It really WORKS"
Harry Powell
Fort Lauderdale, FL
"I recommend Hull Shield to all my boater friends."
Protect Your Boat From Barnacles - Without Paint, Chemicals or Scraping
Hull Shield® uses advanced ultrasonic antifouling technology to keep your hull and running gear clean, continuously, safely and automatically.
No toxic bottom paint | No diver cleaning every few weeks | No damage to your hull or the environment
Fill out the form below to see if Hull Shield is right for your boat.
Marine Growth Costs You More Than You Think
Biofouling isn't just ugly - it's expensive.
- Slower speeds & higher fuel burn
- Frequent diver cleanings and haul-outs
- Reduced sailing or cruising performance
- Shortened bottom paint life
- Ongoing maintenance headaches
For boats kept in the water, growth beings in weeks - not months.
What is Ultrasonic Antifouling?
Hull Shield systems emit high-frequency ultrasonic energy through your hull.
This energy:
- Disrupts the ability of barnacles and marine growth to attach
- Prevents biofouling before it starts
- Works on hulls, props, drives, rudders & pods
- Runs silently - no moving parts, no chemicals
- Operates around the clock while your boat sits in the water
You get protection that doesn't rely on coatings, paints, or regular diving work.
Hull Shield is Perfect for:
- Power Boats
- Sailboats & Catamarans
- Motor Yachts
- Boats in saltwater or brackish water
- Freshwater boats in areas that have mussels
- Owners looking to reduce bottom-paint intervals
Especially valuable for boats that:
- Sit in the water for extended periods
- Experience rapid fouling in warn/brackish/salty water
- Want to reduce bottom-paint intervals
- Crave less maintenance & fewer diver bills
- Care about performance & efficiency
How It Works
Install -> Power On -> Stay Clean
Installation is straight forward (just over 70% of our customers DIY - and we have a great network of installers if DIY isn't your thing).
No need to haul the boat as you can install Hull Shield while the boat is in the water. Transducers simply attach to the inner-surface of the hull with adhesive that is supplied in the kit. The transducer signal cables route back to the Hull Shield controller. The controller is connected to the boat's existing battery system. That's it.
The beauty of Hull Shield is that once installed there is no maintenance, it silently does it's job for you 24/7.
How It Cleans
Ultrasonic waves travel along your hull
Marine growth can't attach
Your boat stays cleaner longer
Engineered for fiberglass, aluminum, steel - Hull Shield disrupts barnacle attachment right at the source.
What Results Can You Expect?
Most Owners Experience:
- Dramatically reduced barnacles & marine growth
- Cleaner hull between haul-outs
- Fewer bottom cleanings - save hundreds or thousands annually
- Extend bottom paint life by 12-24+ months
- Improved fuel economy- reduce cost pre nautical mile
- Silent, automatic protection 24/7 - no monthly diver trips required
- Less environmental impact
FAQ - Quick Answers
Yes - it's non-toxic, non-invasive, and safe for all hull types.
Most installs can be done while the boat is in the water.
It doesn't replace bottom paint entirely - but it extends paint life significantly and reduces cleaning frequency.
Find the Perfect Hull Shield System for your Boat
Take our quick 30-second form to discover which ultrasonic antifouling setup fits your vessel and boating habits.
There is no obligation - we'll simply review your boat details and let you know:
- If ultrasonic antifouling is a good fit
- What size system your boat would require
- What areas of your boat can be protected
- Estimated pricing and installation options
Fill out the form below to get your personalized Hull Shield setup!