NHOU Original Oil Undercoating with Peppermint
Rustproofing & Undercoating, Clear or Black
Price range: $62.79 through $2,196.49
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.
Rust Protection That Keeps Working
Every vehicle is built with thousands of spot welds, bends and folds that damage the factory coating and open the door to corrosion. Add road salt and liquid de-icers, and rust starts in the seams and cavities you can’t see. Besides the cosmetic damage, it weakens the structure and can affect steering and suspension parts.
NHOU® Original Oil Undercoating penetrates into the tightest seams and spot welds, then stays active, constantly creeping to keep moisture away from bare metal. It’s the same proven formula, now infused with peppermint.
What It Does
- Penetrates rust to the base metal, displaces moisture and blocks oxygen
- Self-healing: keeps creeping into seams, spot welds and cavities
- Stands up to salt, liquid de-icers and winter driving
- Lubricates moving parts
- Same proven formula, now with a fresh peppermint scent
We formulate it for the vehicle undercarriage and use it in our own service shop, so we see how it performs on real vehicles every day.
Right for Every Stage
Seal the seams before the first winter.
Light rustStop the spreadPenetrates surface rust and keeps moisture out.
Heavy rustConvert, then protectUse Rustoration® first, then Black oil.
Clear or Black?
Clear
Same trusted protection, leaving surfaces looking natural.
Black
Same trusted protection with a biodegradable black tint for a clean underbody look.
Both come in 1, 5 and 55 gallon sizes.
Two Ways to Apply
Find an Applicator
An NHOU® Authorized Applicator has the lift, equipment and training to reach every seam and cavity.
Find an ApplicatorDIY Kit
Get pro-level results at home, and keep protection topped up with Touch-Up Cans.
Shop DIY KitTouch-Up CansLearn more about NHOU® Oil Undercoating → Watch installation videos →
| Size | 1 Gallon, 5 Gallon Pail, 55 Gallon Drum |
|---|---|
| Formula | Original |
| Color | Black, Clear |
| Brand | NHOU |
| Rust Level | Heavy Rust, Light Rust, New Vehicle |
| Badge | Best Seller |
Safety Data Sheets (SDS)
Handling, storage, first aid and spill information for this product. Opens as a PDF in a new tab.
- Original Oil Undercoating, ClearPDF · 136 KBDownload SDS
- Original Oil Undercoating, BlackPDF · 135 KBDownload SDS
See all NHOU Safety Data Sheets →Need help? Call (603) 491-9012
Using it
What is NHOU Oil Undercoating for?
It protects your vehicle’s underbody from rust caused by road salt, liquid de-icers and winter driving. It penetrates seams, spot welds and cavities, displaces moisture and blocks oxygen, then stays active to keep moisture away from bare metal.
It works at every stage: new vehicles, light rust and heavy rust (use Rustoration® first).
How much do I need?
It depends on the size of your vehicle and its condition. Contact us and we’ll recommend the right size for your vehicle.
What prep and equipment do I need?
- Clean first: if the vehicle has heavy mud or flaky rust, pressure wash it, especially around the frame and wheel wells, ideally a day before application.
- Wet is OK: the oil chases water, so damp conditions are fine. Dry is ideal; don’t apply in heavy rain.
- Electrical: make sure all connections are made before applying.
- Heavy rust: convert it with NHOU® Rustoration® first.
- Equipment: applicators use high-pressure equipment that atomizes the oil. Doing it yourself? Start with the DIY Kit.
How do I apply it?
NHOU® is atomized under high pressure, pushing it deep into the seams, cracks and crevices where corrosion starts. Cover the frame, wheel wells and hard-to-reach areas like rocker panels and door cavities. Once applied, it removes moisture, adheres to the surface and keeps creeping to self-heal.
Watch installation videos, or find an applicator to have it done for you.
What should I avoid?
- Keep it off brakes, exhaust systems and soft rubber molding.
- Don’t apply during heavy rain.
- Avoid undercarriage car washes between treatments. Most recycle salty water, and high-pressure jets can force salt back into body cavities.
- Don’t count on it for paint. It doesn’t prevent scratches, peeling paint or stone chips.
You may notice some smoke and odor the first time you drive. That’s a little overspray on the exhaust burning off; it’s harmless and stops quickly.
How do I maintain the protection?
- Reapply once a year for consistent protection.
- Clean the undercarriage before your next application.
- Keep high-wear spots topped up with Touch-Up Cans.
- Repair paint chips promptly to prevent surface rust.
About the product
Clear or Black: which should I choose?
Both give the same trusted protection. Black adds a biodegradable tint for a clean, black underbody finish. Clear leaves surfaces looking natural. Both come in 1, 5 and 55 gallon sizes.
Does the peppermint change how it works?
No. It’s the same proven oil-based formula. The only change is a fresh peppermint scent.
Will it drip?
It’s formulated to be low-drip. After heavy application, minimal dripping may occur, and it cleans up easily with Dawn® dish soap or Simple Green®. Want drip-free? Try NHOU® V3.
Will it harm electrical connections?
No. NHOU® is non-conductive and will not harm electrical connections.
Will undercoating void my vehicle warranty?
No. Under the federal Magnuson-Moss Warranty Act, a manufacturer can’t void your warranty just because you used an aftermarket product, unless they can prove that product caused the problem.
Where is the Safety Data Sheet?
Open the SDS Info tab on this page. Need help? Contact us.
Frequently bought together
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® 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.
You may also like…
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.