NHOU® Oil Undercoating Touch-Up Cans
Oil Undercoating Spray for Touch-Ups, Clear or Black
Price range: $34.78 through $170.04
NHOU® oil undercoating in an easy-to-use aerosol. Treat wheel wells, rocker panels, seams and repaired areas between full applications, without a full service.
- Clear or Black
- 2-pack or case of 12
Not available to California residents.
Keep Your Protection Topped Up
Rust doesn’t wait for your next appointment. Wheel wells, rocker panels and seams take the most abuse from road salt, and a scrape or a repair can leave bare metal exposed.
NHOU® Touch-Up Cans put our oil undercoating in an easy-to-use aerosol, so you can treat high-wear spots in minutes, without a full service.
Why Keep a Few on Hand
- Easy-to-use aerosol, no equipment needed
- Same NHOU® oil undercoating formula as our full-size containers
- Clear or Black to match your undercoating
- Great for DIYers, fleets and anyone between appointments
Great for Touching Up
How to Use It
Shake
Shake the can well.
Spray
Spray onto a clean, dry surface.
Let it work
Let it soak in and penetrate. Reapply as needed.
Watch our free workshop videos →
Need More Coverage?
DIY Undercoating Kit
Undercoating plus a spray gun and wand for a full application at home.
Shop DIY KitFind an Applicator
Book a full NHOU® application with a local Authorized Applicator.
Find an ApplicatorNot available to California residents.
| Pack | 2-Pack, Case of 12 |
|---|---|
| Color | Black, Clear |
| Brand | NHOU |
| Size | 12 oz Aerosol |
| Formula | Original |
| Rust Level | Heavy Rust, Light Rust, New Vehicle |
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.
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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® 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.
