NHOU® Storage Shield
Rustproofing & Undercoating with Peppermint
Price range: $34.78 through $2,177.39
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.
Protection That Keeps Working While It Sits
Storage brings two problems: moisture and rust. A vehicle or piece of equipment that sits for months doesn’t get driven, washed or checked, so moisture settles into seams, cavities and wiring areas, and corrosion starts where you can’t see it.
NHOU® Storage Shield is a clear, oil-based undercoating infused with peppermint. Spray it on before storage and it keeps creeping into seams and crevices, pushing moisture away from bare metal until you’re ready to use the vehicle again.
What It Does
- Seals off oxygen to help prevent rust
- Protects electrical connectors, switches and motors
- Stays active in seams, cavities and welds while the vehicle sits
- Fresh peppermint scent instead of a harsh chemical smell in the garage
Over the years, customers have told us their stored vehicles came out in better shape after being coated with NH Oil Undercoating®. Storage Shield brings that same oil-based protection to storage.
Made for the Off-Season
How to Use It
Before storage
Spray exposed metal, inside body cavities and around wiring harness areas.
Store it
Park the vehicle, boat or equipment for the season. Storage Shield keeps working while it sits.
Optional: add pouches
For rodent protection, place NHOU® Mouse-Out Pouches (sold separately).
Two Products, Two Jobs
NHOU® Storage Shield
Protects metal and wiring from moisture and rust.
NHOU® Mouse-Out Pouches
Peppermint pouches placed where rodents may nest.
Get both in one box with the NHOU® Mouse-Out Kit: two 12 oz Storage Shield aerosols and one pack of 10 Mouse-Out Pouches.
Shop the Mouse-Out KitLearn More| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Size | 1 Gallon, 12 oz Aerosol, 5 Gallon Pail, 55 Gallon Drum |
| Pack | 2-Pack, Case of 12 |
| Brand | NHOU |
| Package | 1 Gallon, 12 oz Aerosol, 2-Pack, 12 oz Aerosol, Case of 12, 5 Gallon Pail, 55 Gallon Drum |
Safety Data Sheets (SDS)
Handling, storage, first aid and spill information for this product. Opens as a PDF in a new tab.
- Storage Shield Aerosol, 12 ozAvailable on requestRequest SDS
- Storage Shield, 1, 5 and 55 galPDF · 134 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.
You may also like…
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.
