Buy US Direct
Buy CA Direct
Buy EU Direct
Buy DE Direct
Where Passion Meets Protection—Be the Next NHOU® Success Story
There are two ways to become part of NHOU®
- If you own an automotive business, you can become an Authorized Dealer—you’ll find that information below.
- If you don’t own an automotive business, you can become a Franchisee—you’ll find that information on our: Franchise Website
Protect Vehicles. Grow a Business. Join the Movement.
As an automotive business owner, you’re already well-positioned to offer NHOU’s products and services to your customers—helping them get the most out of their vehicles. At our flagship shop in Chichester, New Hampshire, we provide oil undercoating to thousands of vehicles a year, with over 90% of our customers returning year after year for annual service. Some of our dealers have gone on to build dedicated service bays exclusively for applying NHOU® products—and some have had the income from NHOU® services exceed all their other earnings.
Drive Rust Out. Bring Opportunity In.
NHOU® has been specializing in oil-based rustproofing and undercarriage rust prevention since 2010. We engineer, test and manufacture highly effective and affordable NH Oil Undercoating®, BOSS WAX®, Mouse-Out Rodent Deterrent, Rustoration® Rust Converter, NHOU® Salt Brine Eliminator, and NHOU® Ceramic Coating products. NH Oil Undercoating® comes in clear and black—with the black oil comprising 80% of our business. Our newest product, NHOU®-ENVIRO is 100% biobased and biodegradable, making it ideal for municipal fleets and agricultural vehicles.
Stronger Together: One Brand. Hundreds of Local Heroes
We genuinely care about helping you grow your business—big or small—through the voices of your own customers. We’ll help you showcase your hard work and the passion you have for your clients by offering an easy-to-navigate link directly to Google reviews, Facebook reviews, Yelp reviews and the ratings and review app right on our store locator page.
Join a Brand That Works as Hard as You Do
Our goal is to establish long-term, profitable, mutually beneficial relationships with every NHOU® Authorized Dealer—and our track record for success speaks for itself, with dealers around the world. Quality vehicle protection products, solving problems and excellent customer relationships are the core of our brand. We strive to work with people and businesses that understand that a quality product applied by professionally trained applicators is the key to our mutual success.
Loyal Customers—Build a Business with Oil, Innovation, and Integrity
Because we use all the products we engineer, we have a unique opportunity to not only accurately gauge performance, but design our products to be user-friendly. NHOU® also has an in-house lab for the highest level of quality control. If you live in or drive in the rust belt, or an area where moisture is present and roads are treated with salt and brine, there’s a great need for oil-based rustproofing in your area. Undercoating will dovetail with your current service and attract more customers to your business.
Oil-Based Rustproofing: From Frustration to Foundation—Now a Business Model That Works.
At NHOU’s flagship location, the results speak for themselves. We’re on track to undercoat more than 3,500 vehicles this year alone—a powerful testament to the growing demand for effective rust protection.
With the expansion into our larger, state-of-the-art Concord, NH facility in 2015, we’ve been able to serve more customers than ever, solidifying our role as a leader in the battle against corrosion.
Look North: A Proven Model in Motion
Still questioning the need for oil-based rustproofing in the U.S.? Just look at our neighbors in Canada, where undercoating is a way of life. Across the country—from British Columbia to Montreal—thousands of rustproofing businesses treat hundreds of thousands of vehicles every year. For over three decades, Canadians have embraced oil undercoating as an essential form of vehicle maintenance.
Why It Matters—Now More Than Ever
Here in the U.S., the case is just as urgent:
-
Skyrocketing vehicle prices make long-term protection a smart investment.
-
Fuel efficiency standards mean thinner, more vulnerable metals.
-
Increased road salt and liquid brines are more aggressive than ever before.
The result? Your vehicle’s undercarriage is at war with corrosion—and oil-based rustproofing is your best defense.
We’re Ready to Protect What Moves You
Whether you’re driving a brand-new truck or holding on to a trusted workhorse, rust never waits—and neither should you. NHOU is proud to be at the forefront of this movement, offering proven solutions built on results, not just promises.
We Built It From Scratch—Now It's Your Turn.
Choose the Tier That’s Right for Your Business
Not All Rustproofing Is Created Equal—NHOU® Is the Difference.
From Frustration to Formulation: The NHOU® Journey
Our undercoating business began in 2010, born out of a relentless drive to solve real-world rust problems with versatile, multi-use products. As we applied thousands of coatings across a wide range of vehicles, we gained invaluable hands-on experience that shaped our approach to innovation.
By our third year, patterns began to emerge:
-
The products on the market lacked longevity.
-
The odor was overwhelming.
-
And overspray was so excessive, we had to leave our garage doors open—making winter application nearly impossible.
We knew there had to be a better way.
🧪 Driven by Challenges. Backed by Experts.
Determined to improve what the industry had accepted for too long, we partnered with corrosion engineers and an automotive coatings chemist with over 40 years of experience. Together, we set out to engineer superior solutions—not just for ourselves, but for every shop and vehicle owner facing the same frustrations.
The result?
Breakthrough Formulas That Set the Standard
We proudly introduced:
-
NH Oil Undercoating®
-
Boss Wax®
-
Rustoration® Rust Converter
Each product was developed to embody the best traits of our early blends—enhanced with modern performance and practical innovation. They feature:
-
Superior moisture displacement
-
Exceptional creeping and migration
-
Advanced corrosion inhibition
-
Natural lubrication and protection
-
Low overspray & winter-ready application
-
A cleaner, more pleasant aroma
Proven by Thousands. Trusted by Pros.
Backed by years of field-tested success and thousands of satisfied customers, NH Oil Undercoating® has earned glowing reviews from consumers and dealers alike. We didn’t just build a product—we built a reputation for protection that lasts.
Ready to transform rustproofing into a competitive advantage?
Let’s protect vehicles—and profits—together.
Where Cutting-Edge Chemistry Meets Old-School Reliability.
We simulate years of seaside exposure in a month or less with ASTM B117
In 2016 NH Oil Undercoating began the installation of a fully equipped testing lab to evaluate the corrosive properties of: Phosphated surfaces with an ASTM B-117 compliant salt fog chamber. ASTM B 117 Salt Fog and Salt Spray testing is an accelerated method for evaluating coating and materials performance under highly corrosive marine conditions. B117 is commonly used for metals, plastics, woods, and coated materials of all kinds.
We say ‘years’ because the exact amount depends on the conditions of exposure and there is no agreed-upon correlation factor; the goal of the test is to provide a stable environment where different coatings and materials can be compared against each other. Along with the benefit of observing and evaluating the tens of thousands of vehicles coming through the shops each year, this will help allow us to develop new products and combat the increasingly corrosive nature of new chemicals applied to the roads each year.
NHOU® Training: Learn. Apply. Grow.
Get certified. Get equipped. Get ahead.
Comprehensive training is provided at our Concord, NH facility, covering everything you need to become an approved NHOU® service provider and applicator. After training, you’ll receive exclusive pricing on products and equipment.
Please note: Travel and lodging are not included. Vehicles may be required for hands-on sessions; follow-up visits can be scheduled if necessary.
What’s Included:
-
In-depth marketing strategy training
-
Cleanup procedures and compliance with regulations
-
Hands-on use of new filtration and lighting systems
-
Product training on NHOU® Wax-N-Oil and Rustoration® Rust Converter
Website Services Available - The Whole Package!
Offered to our dealers, this package lets you focus on your daily tasks and leave online marketing up to us. Along with free site modifications (by you or us) the professionally-designed website we build is designed with built-in SEO features to help drive more traffic to your website and an optimized lead funnel to increase conversions. This website will be designed with expert knowledge in the industry, which will drive more qualified traffic to your website, allowing us to grow the industry together!
We create your website with Search Engines in mind using industry-standard WordPress.
- We will help you find and include a relevant domain name
- Hosting with 99.9% guaranteed uptime
- SSL certificate for customer data protection
- Keyphrase research and search-optimized content
- Link to your Facebook profiles to increase your Social Media Presence
- Video reference library as well as before and after photos
- Frequently asked questions page
- Customizable about us page to tell your story
- Customized services offered page with professional videos (Customizable at additional cost)
