Built for salt, spray, and everything in between. Rust-resistant trays. Lint-free pads. Coating chemistry engineered for salt, corrosion, and constant exposure.

Marine Deck & Floor Applicators

Dockline is the marine coatings brand of Northern Applicators. Dockline applicators are designed for environments where the corrosive effects of weather and water are critical — ships, oil rigs, small watercraft, docks, decks, and conduits. Rust- and salt-resistant trays, lint-free Nylfoam® and woven applicators, and NanoFlock® rollers deliver a fast, flawless finish with solvent-based or waterborne coatings. Designed for speed, quality finish, simple operation, and easy cleanup.

Floor Finish & Trim Pads

Classic Paint Pads

Floor Coater Refills

Floor Coaters

Heavyweight Floor Coaters

Lightweight Floor Coaters

BigFoot™ Professional Floor Coaters

Smoother Applicator

Protect on Deck.

Dockline marine guides

Clean, freshly coated boat bilge and engine bay interior with an even, corrosion-free finish

Bilge and Hard-to-Reach Coating Application

How to coat a bilge and other hard-to-reach spaces so a metered film reaches overhead and blind corners and no holidays let oil and salt water corrode.

Freshly coated marine steel beams and welded plate with an even, corrosion-free protective finish

Coating Steel in Corrosive Marine and Industrial Service

How to coat marine and industrial steel to a uniform mil thickness, stripe the welds and edges, and keep corrosion from starting where the film goes thin.

Freshly sealed teak boat deck with rich golden grain, tight seams, and an even glossy finish

Sealing and Staining a Boat Deck

How to seal and stain a boat deck so the tone stays even along the grain, the wet edge never sets, and marine teak holds its color and water resistance.

Freshly coated boat propeller and running gear under a hauled hull with an even antifouling finish

Applying Antifouling to Running Gear and Props

How to apply antifouling to props and running gear so the film holds an even mil on curved metal and no holidays let barnacle fouling take hold.

Clean freshly coated aluminum pontoon boat on calm flat water in bright daylight

Coating Aluminum Boats and Pontoons

Aluminum needs different prep and chemistry than steel, and its oxide layer fights adhesion. Here is how to prep, prime, and apply so the coat bonds and holds against corrosion.

Freshly coated wooden dock and pilings over calm tidal water at low tide

Coating Docks and Pilings in the Tidal Zone

The tidal zone gives you a working window measured in hours and a surface that never fully dries. Here is how to prep, time, and coat pilings so the film...

Deep-gloss coated boat hull reflecting light across a mirror-smooth cured finish

Solvent-Resistant Applicators for Two-Part Marine Paints

Two-part marine coatings dissolve the wrong applicator mid-run. Here is how to match a solvent-resistant tool to the chemistry so the film stays even from mix to cure.

Freshly coated glossy boat hull beside calm sea in clear coastal salt air

Coating in Salt Air: Prep, Humidity, and Applicator Choice

Salt air, humidity, and dew punish a marine coat before it cures. Here is how prep, timing, and applicator choice keep the film intact in corrosive service.

Clean freshly coated nonskid boat deck with even texture and crisp borders

Applying Nonskid Deck Coating

Nonskid has to grip underfoot and lay even to the eye. A trade look at how deck coatings with aggregate really go on, choosing an applicator that meters texture consistently,...

Smooth even boat hull below the waterline with a uniform faired barrier finish

Barrier Coats and Blister Repair: Laying an Even Film Below the Waterline

Barrier coats only work at full mil thickness. A trade look at how osmotic blister repair is really applied below the waterline, choosing an applicator that holds even film, and...