NHOU® Marine Corrosion Guard


NH Marine Corrosion Guard is a rust inhibitor oil that forms a water displacing, moisture resistant, non-conductive barrier on non-painted, and painted surfaces. Use to prevent rust from forming on outdrives, lower units, and power trim motors and electrical components or other metal surfaces.


Frequently Bought Together


Protect Your Boat from Rust!


11 oz. Spray Can

 Min. Operating Temp. -10 Degrees F, Max. Operating Temp. 200 Degrees
It prevents corrosion when storing inboard or outboard engines for an extended period of time. 

Displaces moisture and forms a barrier against airborne chemicals to protect against rust and corrosion
Forms a nonconductive water-resistant barrier for added protection from marine environments
Remains clear and doesn’t peel
Marine rust inhibitor is safe for all painted surfaces
Do not spray on surfaces coated with antifouling or biocide paint. Do not spray on drive belts or soft natural rubber

How to Apply NH Marine Corrosion Guard

Use when air and can temperature is between 50°F and 80°F and humidity is 60% or less. Avoid spraying in very windy, dusty conditions. Cover the surrounding area to protect it from spray mist.

Remove all dirt, wax, grease, saltwater deposits, and other contaminants with a high-quality cleaner.
Rinse with water and allow the area to dry.
Shake can vigorously for one minute after mixing ball begins to rattle.
Hold the can upright 6-10″ from the surface and apply thin, even coats using a steady back-and-forth motion.
Note: Keep the can in motion while spraying; release the button after each stroke.
Reapply before storing your boat and every week if boating in saltwater areas.

When finished spraying, clear the spray valve by turning the can upside down and pushing the spray button until clear gas comes out. Clean up wet paint with simple green or dish soap. Dispose of empty cans in accordance with local, state, and federal regulations.

Not available to California residents

Additional information

Weight N/A
Dimensions N/A

Each (2 Cans), 1 Case (12 Cans)