Shop Rust Protection
Undercoating, rust prep and application gear for cars, trucks, equipment and fleets.
- Free shippingOn orders over $100
- Not sure what you need?Find the right product
- Want it done for you?Find an applicator
- Questions?Call 603-491-9012
NHOU® 32 oz Undercoating Gun Bottle
A 32 oz NHOU® bottle for universal air undercoating guns. Keep a spare filled so you can swap bottles mid-job, keep Clear and Black separate, or replace a cracked bottle.
- 32 oz capacity
- Fits universal air undercoating guns
Need the gun too? See the Pro Tek Kit Spray Gun or the DIY Kit.
NHOU® Oil Undercoating Sample Kit, Clear & Black
Try Clear and Black Before You Buy
One sample jar each of NHOU® Oil Undercoating in Clear and Black. Compare the two finishes, see the oil up close and try it on a small area before buying a full container. Also handy for small touch-ups.
- NH Clear + NH Black sample jars
Ready for the full job? See the DIY Kit or find an applicator.
NHOU® Mouse-Out Pouches
Peppermint Pouches for Rodent Protection, 10 per Pack
Peppermint-infused pouches that help repel mice and other rodents from stored vehicles, RVs, boats and equipment. Place them where rodents may nest, hide or cause damage.
- 10 pouches per package
- Replace each storage season
Protecting against rust too? Add NHOU® Storage Shield, or get both in the Mouse-Out Kit.
NHOU® Rustoration® Rust Converter & Prep
Converts Rust Before You Undercoat
The first step for heavily rusted vehicles. NHOU® Rustoration® converts rust into a white, etched zinc phosphate in about 30 minutes, giving NHOU® Oil Undercoating a solid surface to seal.
- Converts rust instead of covering it
- Ready for undercoating in about half an hour
- 16 oz, 1 gallon and 5 gallon sizes
Corrosive: wear eye and skin protection. See the safety section and SDS before use.
NHOU® Marine Corrosion Guard Aerosol
Clear Rust Inhibitor for Outdrives, Lower Units & Marine Electrical
A rust-inhibiting oil in an aerosol that forms a clear, water-displacing, non-conductive barrier on painted and non-painted metal. Use it on outdrives, lower units, power trim motors, electrical components and engines in storage.
- Clear, doesn’t peel
- 2-pack or case of 12
Not available to California residents.
NHOU® Storage Shield
Rustproofing & Undercoating with Peppermint
NHOU® Storage Shield is a clear, peppermint-infused oil undercoating that protects vehicles and equipment from moisture and corrosion while they’re in storage. Spray it on exposed metal, inside body cavities and around wiring harness areas before the season starts.
- Seals off oxygen to help prevent rust
- Protects electrical connectors, switches and motors
- Available in 12 oz aerosols and 1, 5 and 55 gallon sizes
Need rodent protection too? Add NHOU® Mouse-Out Pouches, or get both in the Mouse-Out Kit.
You may receive this product with updated labeling. The formulation remains the same.
NHOU® Oil Undercoating Touch-Up Cans
NHOU® V3 Touch-Up Aerosol, Black, 12 oz
Garden Hose Foam Gun for Salt-Brine Eliminator
Connects to a regular garden hose and foams NHOU® Salt-Brine Eliminator across the whole undercarriage. No pressure washer or brush needed.
- Fits a standard garden hose
- Adjustable foam dial
- Fan nozzle for wide coverage
Use it with NHOU® Salt-Brine Eliminator, then protect the clean surface with NHOU® undercoating.
NHOU® Salt-Brine Eliminator
Salt & Brine Remover, the Prep Step Before Undercoating
The prep step before undercoating. NHOU® Salt-Brine Eliminator is engineered to break down the sticky additives in modern road brines and remove magnesium, calcium and sodium chloride salts from your undercarriage, without a brush, so NHOU® protection goes onto a clean surface.
- Thick foaming action for heavy-duty use
- No caustics, phosphates or petroleum solvents
- 1, 5 and 55 gallon sizes
Apply with a foam gun, rinse, let dry, then protect with NHOU® undercoating.



