Rustproofing & Undercoating Products
Shop NHOU® rustproofing products for cars, trucks, equipment and fleets, from oil undercoating and V3 hybrid undercoating to undercoating spray, DIY undercoating kits, rust prep and application equipment.
- Oil Undercoating
- V3 Hybrid Undercoating
- Undercoating Spray
- DIY Undercoating Kits
- Rust Converter & Prep
- Spray Equipment
- 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
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NHOU Original Oil Undercoating with Peppermint
Rustproofing & Undercoating, Clear or Black
The same NHOU® Original Oil Undercoating you trust, now infused with peppermint. Our proven oil-based formula penetrates seams and crevices, stays active and keeps moisture away from bare metal, protecting your vehicle from salt, de-icers and winter driving.
- Penetrates rust and displaces moisture
- Self-healing: keeps creeping into seams and welds
- Clear or Black, in 1, 5 and 55 gallon sizes
Want it done for you? Find an applicator. Doing it yourself? See the DIY Kit.
Comparing undercoatings? See how NHOU compares with Woolwax and Fluid Film.
You may receive this product with updated labeling. The formulation remains the same.
NHOU® V3 Oil, Wax & Lanolin Hybrid Undercoating
Oil, Wax & Lanolin Hybrid Undercoating with Peppermint
NHOU® V3 combines deep-penetrating petroleum oil, long-lasting wax and natural, moisture-blocking lanolin in one drip-free formula, now infused with peppermint. Developed and tested in our own shop on thousands of real vehicles, with feedback from customers and applicators.
- Oil, wax and lanolin hybrid
- Drip-free, no mixing or heating
- Clear or Black, in 1, 5, 55 and 330 gallon sizes
Want it done for you? Find an applicator.
Still deciding? Compare oil, wax, lanolin and hybrid undercoatings in our guide.
How does V3 compare? Woolwax vs. Fluid Film vs. NHOU: why we developed V3.
NHOU® DIY Undercoating Kit
Everything you need to rustproof your vehicle at home: NHOU® undercoating in the formula, color and size you choose, plus a spray gun and an 18″ wand.
- Formula: Original Oil or V3
- Color: Clear or Black
- Size: 1 or 5 gallons
Not sure you need the full kit? How to choose an undercoating spray.
Rather have it done for you? Find an applicator.
NHOU Mouse-Out Kit
Storage Shield for Corrosion + Mouse-Out Pouches for Rodents
Everything you need to put a vehicle or piece of equipment into storage, with a product for each job:
- Corrosion protection: 2 × NHOU® Storage Shield 12 oz aerosols
- Rodent protection: 1 × NHOU® Mouse-Out Pouches (10 pouches)
Ideal for cars, trucks, RVs, boats, motorcycles and equipment going into seasonal storage.
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® 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.
NHOU® Oil Undercoating Touch-Up Cans
NHOU® V3 Touch-Up Aerosol, Black, 12 oz
NHOU® V3, our oil, wax and lanolin hybrid, in a 12 oz aerosol. Touch up wheel wells, rocker panels, seams and repaired areas between full applications. Drip-free black finish, infused with peppermint.
- Black, 12 oz aerosol
- 2-pack or case of 12
Aerosol or full kit? How to choose an undercoating spray.
NHOU® Rustoration® Rust Converter & Prep
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
Choosing a converter? Why rust-converter compatibility matters before oil undercoating.
Corrosive: wear eye and skin protection. See the safety section and SDS before use.
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® ENVIRO Aerosol, Bio-Based Rust Prevention
Clear Bio-Based Undercoating in an Aerosol, with Peppermint
NHOU® ENVIRO, our bio-based undercoating, in an easy-to-use aerosol. Made for vehicles and equipment that work or sit near water, farmland and other sensitive areas. Penetrates seams, displaces moisture and keeps creeping to self-heal.
- Bio-based and biodegradable (tested to CEC-L-33-T-82)
- Infused with peppermint essential oil
- Clear, 2-pack or case of 12
NHOU® ENVIRO Bio-Based Undercoating
NHOU® ENVIRO is our bio-based undercoating for vehicles and equipment that work near water, farmland and other sensitive areas. It penetrates seams, displaces moisture and saltwater, and keeps creeping to self-heal.
- Bio-based and biodegradable (tested to CEC-L-33-T-82)
- Non-conductive, no solvents
- Clear, in 1, 5 and 55 gallon sizes
Need a smaller amount? See the ENVIRO Aerosol.
NHOU® Wheel-Well Guard
Thick, Brush-On Protection for Wheel Wells & High-Wear Areas
A thick, brush-on coating for the spots that take the most abuse: wheel wells, running boards and behind bumpers. It clings, stays flexible and forms a barrier against road salt, sand and snow melt.
- 1 gallon with a 4″ brush
- Black or Clear
- Covers approximately 8 to 12 wheel wells
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® 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® 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 a gun too? Call (603) 491-9012 and we’ll help you find the right one.
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.
Lemmer L-65/F4 Airless Spray Gun Body
A heavy-duty airless spray gun body for high-pressure rustproofing systems, built for thick coatings and hard daily use.
- Rated to 7,000 psi
- 4-finger trigger
- Takes Lemmer L-type tips
- Gun body only (tip, wand and hose sold separately)
Prices shown are honored for in-stock items at checkout. Lead times may apply, so order early.
For bulk or back-ordered equipment, call (603) 491-9012 for a current quote.
Lemmer Carbide Tip Kit for HP-45° Rigid Hook Wand
Replacement laser cut tungsten carbide tip for the Lemmer HP-45° rigid hook wand, with the matching nut and seal. Replace a worn tip to restore a clean, even spray pattern.
- 3-part set: tip (L033-159), nut (L033-152), seal (L033-153)
- Fits the HP-45° rigid hook wand
Prices shown are honored for in-stock items at checkout. Lead times may apply, so order early.
For bulk or back-ordered equipment, call (603) 491-9012 for a current quote.
Lemmer RP-1115 Heavy-Duty Airless Drum Pump
A heavy-duty, air-powered drum pump for rustproofing and undercoating products. It pumps straight from a 16 gallon (60L) or 55 gallon (205L) drum to your airless gun.
- 15:1 ratio, up to 1,950 psi fluid output
- 11 L/min free flow
- 1/4″ NPT female fluid outlet, 3/8″ air inlet
- 2″ bung adapter included
Prices shown are honored for in-stock items at checkout. Lead times may apply, so order early.
For bulk or back-ordered equipment, call (603) 491-9012 for a current quote.
NH HP Airless Rustproofing System for 55 Gallon Drums
A complete high-pressure airless system for 55 gallon drums. The Lemmer RP-1115 pump feeds straight from the drum, so shops can undercoat undercarriages, wheel wells and body cavities at volume.
- Lemmer RP-1115 pump, 15:1 ratio, up to 1,950 psi
- Quick-change carbide tip and flexible body cavity wand
- In-line fluid filter
- Air regulator not included
Prices shown are honored for in-stock items at checkout. Lead times may apply, so order early.
For bulk or back-ordered equipment, call (603) 491-9012 for a current quote.
