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

Search by SKU or keyword example:

NHC-1

Protect your ride. Extend its life—with NHOU® Innovation That Doesn't Rust

FEATURED PRODUCTS

Like us on Facebook to unlock seasonal savings, loyalty perks, and industry insights
Hot
IMG 0749 scaled 1000px
Add to compare

NH Oil Undercoating-Pro-Level Rust Defense—Now a DIY Kit

$157.99 – $335.99

🧰 DIY Convenience & Professional Results

  • "Professional-Grade Rust Protection—Now in Your Hands"

  • "Easy Application, Expert Results: NH DIY Undercoating Kits"

  • "Rustproofing Made Simple: DIY Kits for Every Vehicle"

The DIY kit includes the amount and color of the material that you choose, plus a spray gun and one 18" wand!
Add to wishlist
Select options This product has multiple variants. The options may be chosen on the product page
Quick view
Hot
UR 4251 600x600 800x800 1
2659981672 600x600 800x800 1
Add to compare

NH Oil Undercoating Touch-Up Cans -Your Rust Protection, Recharged

,
$31.98 – $151.99
Not available to California residents
Add to wishlist
Select options This product has multiple variants. The options may be chosen on the product page
Quick view
Hot
preview
Add to compare

NHOU® BOSS GLOSS

$49.99
Easy one-step hand application polishes and refreshes ceramic coatings in less than half the time it takes to wax! Safe for use on all your vehicle’s surfaces, eliminating the need for other costly products. Polished surfaces are extremely hydrophobic (water-resistant) making BOSS GLOSS an ideal water repellent on all glass windows/windshields!
Add to wishlist
Add to cart
Quick view
Hot
Marine aerosol can 800px
how to launch a boat
Add to compare

NHOU® Marine Corrosion Guard Aerosol Cans

$31.98 – $151.99
NH Marine Corrosion Guard is a rust inhibitor oil that forms a water displacing, moisture resistant, non-conductive barrier on non-painted, and painted surfaces. Use to prevent rust from forming on outdrives, lower units, and power trim motors and electrical components or other metal surfaces.
Add to wishlist
Select options This product has multiple variants. The options may be chosen on the product page
Quick view
Hot
NH Oil Under Coating NHC 5 Oil Coating 5 gallon A 1000x1000px
Add to compare

NHOU® Oil Undercoating-Double Defense: Rust Prevention Meets Rodent Repellent.

,
$58.00 – $2,016.00

We’ve made our incredible Black and Clear NH oil undercoating products even better! 🎉

Introducing the NEW and improved formula, now infused with Mouse Out! 🐭💨

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 Undercoating is a safe, affordable, and extremely effective way to extend the life of your vehicle against damage caused by salt, liquid de-icing and winter driving conditions. It is designed to penetrate the seams and crevices. It eliminates moisture. It actually terminates rust and corrosion in all metals, it protects vinyl and plastic surfaces from UV rays and improves the function of moving parts through lubrication.
Add to wishlist
Select options This product has multiple variants. The options may be chosen on the product page
Quick view
Hot
NHOU 1 Gallon Rust Converter R2 Page 1
NHOU 1 Gallon Rust Converter R2 Page 2
Add to compare

NHOU® RUSTORATION® -Prep Smart, Protect Long: Rust Conversion Made Easy

$24.99 – $79.99

Rust Stops Here: Prepare for a Corrosion-Free Future

NHOU® Rustoration® Rust Converter & Prep is your first line of defense in the battle against corrosion. Specially formulated to work seamlessly with NHOU® Oil Undercoating, this rust converter doesn't just mask rust—it transforms it.

Key Features:

  • Rapid Transformation: Converts rust into a white, etched zinc phosphate in just 30 minutes, providing a solid foundation for undercoating.

  • Enhanced Protection: The converted surface allows NHOU® Oil Undercoating to penetrate deeply, sealing out oxygen and moisture—critical elements that contribute to rust formation.

  • Eco-Friendly Formula: Water-based and non-hazardous, ensuring safety for both the user and the environment.

  • Versatile Application: Suitable for various metal surfaces, making it an essential tool for vehicle maintenance and restoration.

Why Choose NHOU® Rustoration® Rust Converter & Prep?

  • Synergistic Performance: Designed to complement NHOU® Oil Undercoating, ensuring maximum adhesion and long-lasting protection.

  • Time-Efficient: Quick-drying formula means you can proceed with undercoating in just half an hour.

  • Cost-Effective: Prevents further rust damage, saving you from expensive repairs down the line.

Add to wishlist
Select options This product has multiple variants. The options may be chosen on the product page
Quick view
Hot
nhousaltbrinegal wm
NHOU SaltBrine 1 Gallon new Page 1 1024x1024 1
Add to compare

NHOU® Salt-Brine Eliminator-Strips the Brine. Sets the Stage

$49.99 – $1,699.99

Clean Starts Begin with NHOU

NHOU® Salt-Brine Eliminator: The Ultimate Pre-Treatment Solution

When it comes to protecting your vehicle from corrosion, preparation is paramount. Introducing the NHOU® Salt-Brine Eliminator—a product born out of necessity, not profit. Faced with the challenge of removing stubborn liquid deicing materials from vehicle undercarriages, we developed a solution that addresses the problem head-on.

Why Choose NHOU® Salt-Brine Eliminator?

  • Targeted Formulation: Specifically designed to break down and remove the sticky additives found in modern deicing solutions, ensuring a clean surface ready for NHOU® Protective Coatings.

  • Comprehensive Cleaning: Effectively dissolves and eliminates harmful magnesium, calcium, and sodium chloride salts without the need for brushing.

  • Safe and Eco-Friendly: Free from caustics, phosphates, and petroleum solvents, making it safe for various surfaces including plastics, rubber, vinyl, carpet, metal, upholstery, and leather.

  • Versatile Application: Ideal for automotive use—cars, trucks, trailers, vans, buses, and bikes—as well as heavy machinery and marine equipment.

Add to wishlist
Select options This product has multiple variants. The options may be chosen on the product page
Quick view
Hot
gift card 1000px
Add to compare

Gift Card-Protect Their Ride: NHOU® Gift Cards for Every Occasion!

$100.00

Give the Gift of Protection: NHOU® Gift Cards Available Now!

 
NHOU® Gift Cards: The Ultimate Gift for Vehicle Care

Looking for the perfect gift for the car enthusiast in your life? NHOU® Gift Cards offer a practical and thoughtful solution, allowing your loved ones to choose from our range of premium rust protection products and services.

Why Choose NHOU® Gift Cards?

  • Versatility: Redeemable for any NHOU® product or service, including our renowned oil undercoating treatments and DIY kits.

  • Convenience: Available in various denominations to suit your budget and their needs.

  • No Expiration: Our gift cards never expire, giving recipients the flexibility to use them whenever they choose.

  • Easy to Purchase: Quick and secure online ordering process, with options for digital delivery.

Perfect for Any Occasion

Whether it's a birthday, holiday, or just because, NHOU® Gift Cards are ideal for:

How to Purchase

  1. Select Amount: Choose the denomination that fits your gifting needs.

  2. Add to Cart: Proceed to checkout with our secure payment system.

  3. Delivery: Opt for digital delivery via email for instant gifting.

Give the Gift of NHOU® Protection Today

Show your loved ones you care about their vehicle's longevity and safety. An NHOU® Gift Card is more than a present—it's an investment in their vehicle's future.

Please include the recipient’s name and address, we can mail the gift certificate usually within one business day. If you would like a gift certificate for a specific amount, you can call the office directly at 603-491-9012 extension one. Gift certificates can be made out in any amount.
Add to wishlist
Add to cart
Quick view
SCHEDULE LOCAL SERVICE

OUR SYSTEM
Smart Protection, Engineered to Endure.

Keep Rust Out. Keep Value In. With NHOU® Advanced Protection
sack dollar

Preserve What Matters Most

Rust-free vehicles are safer to drive, easier to work on and maintain the highest resale value.

DISCOVER PRODUCTS
tools

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.

SCHEDULE LOCAL SERVICE
bio leaves

Gentle on the Planet, Tough on Rust

Formulated with the environment in mind, every NHOU formula is non-hazardous and unregulated.

BUY PRODUCTS
DISCOVER WHY

As a hands-on family business, we’re constantly improving—formulating, applying, training, and innovating to help people protect what they value most.

Done Right. Done by Pros-Hands-On Expertise You Can Trust
WATCH NOW
LEARN MORE
ALL BLOG POSTS

NHOU® Blog

Protecting Vehicles. Sharing Insights. Supporting You.
    NHOU REVIEWS

    Backed by Science. Proven by People

    See what our customers are saying about their experience with NHOU products and services

    From Rust to Results: The NHOU® Story

    NHOU® Advanced Rust Protection has grown from a part-time operation out of a family garage to becoming a leading, globally recognized brand with the mission of protecting vehicles from corrosion. Whether it’s from road salt or humid environments, rust is a critical factor in vehicle trade-in value and safety. NHOU® is the fastest, least expensive way to add safety and value to your vehicles.

    NEW HAMPSHIRE

    Monday – Friday: 9am-5pm

    Saturday – Sunday: Closed

    (603) 491-9012

    NHOU Family Photo

    Your rust protection partner—here to answer every question.

    CONTACT US