Marine rust coating
Saltwater eats steel. Spray it a shield.
Docks, floats, piers, boat lifts, trailers and coastal steel take the worst corrosion there is. Applicators who can protect them earn repeat work from marinas, ports and waterfront owners.
The work
Where marine rust work comes from
Seawater is a highly conductive electrolyte, and chlorides break down the protective films that slow corrosion everywhere else. The splash zone, wet then dry then wet again with plenty of oxygen, is where steel goes fastest.
Marinas, dock builders and waterfront owners spend real money keeping steel frames, floats, pilings and hardware in service. A coating that encapsulates the steel and takes the abuse of boats, ice and foot traffic is an easy story to tell them.
Most applicators build marine business above and around the waterline, where a tough, seamless spray coating does its best work.
Why spray it
What marine steel needs
Total encapsulation
A continuous membrane with no seams for salt water to wick under.
Splash-zone toughness
Impact and abrasion resistance against hulls, ice, debris and foot traffic.
Flex with movement
Elastomeric films ride out the constant flexing of floating structures.
UV-stable finish
Topcoats that hold color on sun-baked docks and decks.
Know where your system stops
Below-waterline hull work and antifouling are their own specialty with their own products and rules. Confirm the system you spray is rated for immersion before it goes anywhere that stays wet.
Who buys it
Marine customers worth calling on
- Marinas
- Yacht & boat clubs
- Dock builders
- Boat dealers
- Lakefront homeowners
- Port authorities
- Commercial fishing
- Ferry operators
- Waterfront restaurants
- Parks departments
FAQ
Marine questions
Can polyurea be used on floating docks?
Yes. Spray polyurea is widely used to encapsulate dock floats and protect steel frames and hardware. As with any marine job, the system has to be suited to the exposure, and prep has to remove salt as well as rust.
Will the coating fade in sunlight?
Aromatic polyureas are extremely tough but can darken or chalk in direct sun. Where color and gloss matter, an aliphatic topcoat goes over them. That is a normal part of specifying exterior work.
Can you spray polyurea over rust?
Not over loose rust, scale, oil or salt. A spray coating is a barrier, and it is only as good as its bond to the steel. Abrasive blasting to the profile the system calls for is the standard; where blasting isn’t practical, thorough power-tool cleaning with the right primer can work on some jobs. Spraying over rust traps the problem underneath.
Get started
Go after marine work
Tell us a little about you and what you want to protect. We’ll follow up with equipment options, training details and pricing, or connect you with a trained applicator if you need something coated.
- Takes about two minutes
- A real person follows up, not an autoresponder
- Equipment, training, materials and financing in one conversation
Backed by ArmorThane. Polyurea and polyurethane coatings manufacturer since 1989, Springfield, Missouri.