ADVANCED RUST PROTECTION
NHOU® PROTECTIVE COATINGS ARE THE FASTEST, LEAST EXPENSIVE WAY TO ADD SAFETY AND VALUE TO YOUR VEHICLE— SEALING OUT CORROSIVES AND ELIMINATING RUST
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NHC-1
NHOU Essentials
NHOU® Oil Undercoating-Double Defense: Rust Prevention Meets Rodent Repellent.
We’ve made our incredible Black and Clear NH oil undercoating products even better! 🎉
You may receive this product with updated labeling. The formulation remains the same.
For those who loved Mouse Out on its own, you’ll be happy to know that it’s now part of our regular oils—meaning even more protection for your vehicle! With 92% effectiveness (tested in the lab, trusted in the field), it’s everything you loved about our oil products PLUS the added benefit of Mouse Out.
🔹 Same great product, now better.
🔹 More protection.
🔹 No change to the oil's effectiveness—just more power!
NHOU V3 Formula Undercoating
AVAILABLE NOW: NHOU V3
Deep-penetrating petroleum oil Long-lasting wax-based durability Natural, moisture-blocking lanolin Now infused with Mouse Out for added rodent defense 
Lab tested to be 92% effective!
Drip-free Longer-lasting Built for pros, trusted by customers
Available now at participating NHOU applicators
Coming to our online store by the end of July
NH Oil Undercoating Touch-Up Cans -Your Rust Protection, Recharged
NHOU® Keep the Mouse Out Aersol-Spray Away Rodents: 92% Effective Protection!
- You may receive this product with updated labeling. The formulation remains the same.
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Repel Rodents, Preserve Your Vehicle
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Spray Smart, Drive Safe
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Nature-Inspired Protection for Modern Vehicles
Introducing NHOU® Keep the Mouse Out aerosol spray—a powerful, eco-friendly solution designed to safeguard your vehicle from rodent infestations and corrosion. With a 92% effectiveness rating in independent laboratory testing, this spray offers:
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Multi-Sensory Deterrence: Combines peppermint oil and synthetic predator scent (undetectable by humans) to repel rodents through scent, taste, touch, and fear.
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Rust Prevention: Forms a protective barrier against moisture, preventing rust in hard-to-reach areas.
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Safe Application: Non-toxic formula safe for use on wiring, plastics, paints, and electrical components.
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Versatile Use: Ideal for cars, trucks, RVs, boats, and even HVAC equipment.
Easy to Apply, Long-Lasting Protection
Simply spray NHOU® Keep the Mouse Out in areas prone to rodent activity. Its long-lasting formula ensures continuous protection, giving you peace of mind whether your vehicle is on the road or in storage.
Why Choose NHOU® Keep the Mouse Out?
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Proven Effectiveness: Trusted by professionals and vehicle owners alike.
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Eco-Friendly: Made with natural ingredients, safe for the environment.
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Cost-Effective: Prevents costly repairs caused by rodent damage and rust.
Don't Let Rodents Take Over—Protect Your Investment Today!
NHOU® Keep the Mouse-Out deterrent spray is infused with essential peppermint oil and predator scent undetectable by humans, to help deter rodents in four ways: scent, taste, touch, and predatory fear.OUR SYSTEM
Smart Protection, Engineered to Endure.
Preserve What Matters Most
Rust-free vehicles are safer to drive, easier to work on and maintain the highest resale value.
Expertly Applied by Certified Technicians
NHOU Authorized Applicators are trained one-on-one at our headquarters to ensure every vehicle receives the highest standard of care.
Gentle on the Planet, Tough on Rust
Formulated with the environment in mind, every NHOU formula is non-hazardous and unregulated.
NHOU V3: Three Variants, Unrivaled Performance
Combining three variants—lanolin, wax, and oil—we’ve engineered a breakthrough in rust protection that combines the best performance characteristics of each. Now a single undercoating formula fuses the natural moisture-repellency of lanolin, the durability of wax, and the critical creeping of oil. NHOU V3 was engineered in-house, tested on thousands of vehicles, and shaped by real-world feedback from pros like you. This isn’t just another formula. This is the Rust Revolution
WE BRING THE TRAINING
TO YOUR FLEET.
EQUIPMENT PROVIDED
Full spray setup and application tools — we bring everything
PRINTED MATERIALS
Reference packets every attendee keeps after the session
PROFESSIONAL TRAINERS
Factory-trained NHOU applicators lead every session
LIVE DEMOS
Hands-on application on real vehicle components
LUNCH INCLUDED
We feed your crew — it’s part of the deal
As a hands-on family business, we’re constantly improving—formulating, applying, training, and innovating to help people protect what they value most.
Backed by Science. Proven by People
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. Trustindex verifies that the original source of the review is Google. Trustindex verifies that the original source of the review is Google. Trustindex verifies that the original source of the review is Google. Trustindex verifies that the original source of the review is Google. Trustindex verifies that the original source of the review is Google. Trustindex verifies that the original source of the review is Google. Trustindex verifies that the original source of the review is Google. Trustindex verifies that the original source of the review is Google. 
From Rust to Results: The NHOU® Story
Regular Hours
Monday – Thursday: 8am-5pm
Friday: 8am-12pm
Saturday – Sunday: Closed
(603) 491-9012
Seasonal Hours
Monday – Thursday: 8am-6pm
Friday: 8am-4pm
Saturday – Sunday: Closed