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Tell us the vessel or structure, size and what it faces. We will connect you with a certified applicator who can inspect and quote.
A ship hull is not one coating job but several. The underwater hull fights corrosion and fouling, the boot-top and splash zone take wet-dry cycling and impact, the topsides take sun and dock rubs, the decks take traffic and cargo, and the ballast tanks sit in seawater for decades. Every one of those zones gets its own system. We manufacture polyurea and polyurethane coatings used on barges, workboats and marine structures, so this guide explains hull coating systems in plain terms and where polyurea helps.
Ship hull coatings are multi-coat systems chosen by zone. The underwater hull usually gets an anticorrosive epoxy primer system topped with antifouling (biocidal self-polishing or non-stick foul-release). Ballast tanks get epoxy systems meeting the IMO PSPC standard. Topsides and superstructure get epoxy and polyurethane. Thick, tough polyurea is used where impact and abrasion destroy thin paints: barge decks and hulls, workboats, fenders, holds, ramps and ice or debris zones. Polyurea is not an antifouling, so it is topcoated with antifouling where fouling matters.
Releases biocides such as copper compounds at a controlled rate as the surface polishes. Most common on commercial hulls.
Low-surface-energy silicone or fluoropolymer coatings that organisms struggle to grip; they release at speed.
The IMO AFS Convention banned tributyltin antifouling paints. Local rules may also limit copper.
Impact and abrasion from cargo, tugs and docking chew through thin paint systems.
Bow, keel and ramp protection from beaching and debris.
Hull armor against rocks and stumps; see our marine coatings.
Coating foam fenders and floats to protect them from tearing and UV.
Thick, seamless protection against abrasion and impact.
Use with a compatible antifouling system where growth affects fuel and speed.
Dedicated seawater ballast tanks are some of the most corrosive spaces on a ship. For new ships covered by SOLAS, the IMO Performance Standard for Protective Coatings (PSPC) sets requirements for surface prep, coating system, film thickness and inspection, targeting a 15-year useful life. Most PSPC systems are epoxy-based. Good prep and stripe coating at edges, welds and cutouts make the difference.
Related: marine and shipping corrosion and corrosion protection coatings.
High-pressure wash on dock, then inspect coating breakdown and steel condition.
Spot or full blast, or waterjet, to the specified standard; repair steel.
Hold steel above the dew point and record humidity and temperature.
Apply anticorrosive coats and stripe coats to the specified thickness.
Apply tie coat and antifouling, or polyurea and topcoat in impact zones.
Measure film thickness and document for class and owner records.
A certified ArmorThane applicator can coat barges, workboats, docks and fenders with tough polyurea systems.
Contractors: become an ArmorThane applicator
Most ship hulls use an anticorrosive epoxy primer system under an antifouling or foul-release topcoat on the underwater hull, with epoxy and polyurethane systems on topsides and decks.
Yes, especially on barges, workboats, landing craft and aluminum boats where impact and abrasion matter. Polyurea does not prevent fouling, so it needs an antifouling topcoat where growth is a concern.
Commercial vessels are typically drydocked and recoated on a cycle of roughly 2.5 to 5 years, depending on class requirements, trade and the antifouling system.
The IMO Performance Standard for Protective Coatings sets requirements for coating dedicated seawater ballast tanks and some other spaces, targeting a 15-year useful coating life.
Antifouling releases biocides to stop organisms settling. Foul-release coatings are non-biocidal, slick surfaces that organisms cannot hold onto at speed.
Owners get a certified ArmorThane applicator for barges, workboats, docks and marine structures. Contractors can add marine coatings with our equipment and training, with no franchise fee and no royalties.
ArmorThane has built a strong reputation over the past 30 years for producing high-quality, durable protective coatings.
Tel: 417.831.5090
moreinfo@armorthane.com
We want to help you find the best ArmorThane applicator for your protective coating project. Please either fill out the request form below or call us toll free at 417-831-5090, any time Monday-Friday, 8:00 a.m. to 5:00 p.m. Central Standard Time.
Connect with an authorized ArmorThane professional to get a long-lasting, seamless protective coating for your RV. Submit the form below or call us directly at 417-831-5090 (Monday–Friday, 8:00 AM – 5:00 PM CST).
