Become an NHOU® Applicator

Partners in Protection. Allies in Growth.

Where Passion Meets Protection. Be the Next NHOU® Success Story.

The most important customer relationship we have is the one we share with our applicators. Whether you want a complete setup or a smaller first step, we’ll help you find the right way to start, and help you grow from there.

Talk to Us About Getting StartedWays to Work With Us
No package required to startFree RustFax appFleet business support
The NHOU team with the full NHOU product line

You don’t have to start with a complete package.

Tell us about your business, the equipment you already have, and what you’re looking to accomplish. We’ll help you figure out a practical starting point and explain the products, training, and support available.

Talk to Us About Getting StartedSee Ways to Work With Us

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 applicators 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 bio-based and biodegradable (tested to CEC-L-33-T-82), making it a good fit 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 Applicator—and our track record for success speaks for itself, with applicators 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.

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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? Undercarriages are at war with corrosion, and oil-based rustproofing is a proven defense.

We’re ready to protect what moves you. Whether it’s a brand-new truck or a trusted workhorse, rust never waits, and neither should you.

RustFax, powered by My Steward Registry
Free app · available now

Join RustFax as a Participating Applicator

You do the work. Give your customer a record they can keep.

RustFax lets you document every inspection and service with photos, video and technician notes, all tied to the vehicle. It’s free, available now on the Apple App Store and Google Play, and you don’t need to buy an NHOU® equipment package to use it.

  • Photos, video and notes tied to each vehicle
  • Customers see exactly what was done and get their report
  • Customers claim their vehicle free on My Steward Registry
  • A documented history that helps when they sell

Search “RustFax” in the App Store or Google Play.

Get Help Getting Started

Using RustFax makes you a participating RustFax applicator. It’s separate from becoming an NHOU® Authorized Applicator.

Technician holding a phone showing a RustFax vehicle inspection

How RustFax Works for You and Your Customer

01

Document the work

Record the inspection or service in the app with photos, video and technician notes, tied to the vehicle.

02

Your customer gets the record

They can see what was done and receive their report, so the value of your work is easy to see.

03

They keep building it

Customers claim their vehicle on My Steward Registry and keep adding their own maintenance records. When they sell, that history helps show the care they’ve put into it.

Towns, municipalities and public fleets

Help Building Fleet Business

Bring a documented program

We’ll help you put together a corrosion-prevention program for towns, municipalities and public fleets: what gets treated, when, and how the work is documented.

Approach the right people

We’ll help you present the program to public works directors, fleet managers and highway departments, so you’re offering a plan, not just a product.

Explore funding together

For qualifying public transportation fleets, certain eligible preventive-maintenance costs may qualify for up to 80% federal funding. We can help explore those opportunities and work through the requirements with the administering agency.

Good to know: funding doesn’t apply to every municipal vehicle. The administering agency determines eligibility and approval. Our role is to help you build the program and navigate the process.

Talk to Us About Fleet WorkSee the Fleet Program
Getting started vs. authorized applicator benefits

We Built It From Scratch—Now It’s Your Turn.

Open to Any Business

No package, approval or applicator agreement needed.

  • Talk with us about your business and a practical starting point
  • Guidance on NHOU® products and the equipment you already have
  • Order NHOU® products and spray equipment
  • Use RustFax free as a participating applicator
  • Help building a fleet and municipal program

For NHOU® Authorized Applicators

Requires training, approval and an applicator arrangement.

  • Listing as an Authorized Applicator on our store locator, with links to your reviews
  • Extensive support and hands-on training
  • Exclusive pricing on products and equipment after training
  • Help with operations, marketing and co-marketing programs
  • Brand recognition backed by our web presence and national TV marketing
  • Applicator networking through a private online group
  • Opportunities to participate in nationwide warranty programs
  • Custom ratings and review app, one-year subscription included with packages
NHOU Applicator Packages

Choose the Tier That’s Right for Your Business

Packages are for businesses that want a complete setup on day one: product, equipment, training and marketing materials together. They’re one way to start, not the only way. Talk to us about the starting point that fits your business.

Installer Package
$ 5,500 Starter
1-55 Gallon Drum of NH Oil Undercoating (Clear or Back-n-Black)
1-5 Gallon Pail of NH Oil Undercoating (Clear or Back-n-Black)
1-Case of Aerosol Cans (6-Black 6-Clear)
1-Gallon of Wheelwell Guard(Black)
1-Lemmer RP-460-HD Rustproofing DLX Kit System Includes:
1-45° x 10″ hook wand with top quality 18″ flex hose
1-Flexible 360 Degree Wand
1-90 Degree hook Wand
1-Round Nozzle for Direct Application
1-Flat Nozzle for Direct Application
1-Quick Coupler on the Gun to Allow Fast Changes Between Nozzle and Wand
1-Air Regulator with Gauge
1-Air ``Z`` Swivel
1-Undercoating Gun Kit RA1USA w/ Adjustable Spray Tip Includes:
1-24″ Long by 7/16″ Diameter Flexible Wands 360 Degree Spray
1- 90 Degree Spray Tip
4-Spare Undercoating Cups
1-Lumax Heavy Duty Lever-Action Barrel Pump
250-Custom trifold brochures with your logo and phone number (with rack cardholder)
250-Maintenance cards (with rack cardholder)
1-NHOU Cap
1-NHOU Knit Hat Embroidered Black
2-NHOU T-Shirt Black M,L,XL
1-6' Indoor/Outdoor Banner
Decals & Keychains
NHOU Touch-up Kit Clear/Black
Installer Package
POPULAR
$ 8,000 Professional
1-55 Gallon Drum of NH Oil Undercoating (Clear or Back-n-Black)
1-5 Gallon Pail of NH Oil Undercoating (Clear or Back-n-Black)
1-Case of Aerosol Cans Black(12)
1-Case of Aerosol Cans Clear(12)
1-Gallon of Wheelwell Guard(Black)
1-Lemmer RP-460-HD Rustproofing DLX Kit System Includes:
1-45° x 10″ Hook Wand with Top Quality 18″ Flex Hose
1-Flexible 360 Degree Wand
1-90 Degree Hook Wand
1-Round Nozzle for Direct Application
1-Flat Nozzle for Direct Application
1-Quick Coupler on the Gun to Allow Fast Changes Between Nozzle and Wand
1-Air Regulator with Guage
1-Air ``Z`` Swivel
1-Lemmer High-Pressure Airless Complete System Includes:
1-Lemmer RP-1115 Series Heavy Duty Pump
1-Lemmer Heavy Duty High-Pressure Airless Rustproofing Kit
1-Lemmer Fluid Filter Output RP-1115
250-Custom trifold brochures with your logo and phone number (with rack cardholder)
250-maintenance cards (with rack cardholder)
1-NHOU Cap
1-NHOU Knit Hat Embroidered Black
2-NHOU T-Shirt Black M,L,XL
1-6' Indoor/Outdoor Banner
Decals and Keychains
NHOU Touch-up Kit Clear/Black
Installer Package
$ 11,500 Professional Plus
1-55 Gallon Drum of NH Oil Undercoating (Back-n-Black)
1-55 Gallon Drum of NH Oil Undercoating (Clear)
1-Case of Aerosol Cans NH Black(12)
1-Case of Aerosol Cans NH Clear(12)
1-Gallon of Wheelwell Guard (Black)
1-Lemmer High-Pressure Airless Complete System Includes:
1-Lemmer RP-1115 Series Heavy Duty Pump
1-Lemmer Heavy Duty High-Pressure Airless Rustproofing Kit
1-Lemmer Fluid Filter Output RP-1115
1-Lemmer Fogger Complete System Includes:
1-Lemmer RP-115 Series Heavy Duty Pump
1-F-1001 Fogger gun kit (Dual Hose, Fogger Gun, RP-460 Low Pressure Wand Kit)
250-Custom trifold brochures with your logo and phone number (with rack cardholder)
250-Maintenance cards (with rack cardholder)
1-NHOU Cap
1-NHOU Knit Hat Embroidered Black
2-NHOU T-Shirt Black -M, L, XL
1-6' Indoor/Outdoor Banner
Decals & Keychains
NHOU Touch-up Kit Clear/Black

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 better solutions, not just for ourselves, but for every shop and vehicle owner facing the same frustrations.

Formulas Built From Experience

We introduced NH Oil Undercoating®, Boss Wax® and Rustoration® Rust Converter, each developed from the best traits of our early blends:

  • Moisture displacement
  • Creeping and migration into seams
  • Corrosion inhibition
  • Natural lubrication
  • Low overspray and winter-ready application
  • A cleaner, more pleasant aroma

Proven by Thousands. Trusted by Pros.

Backed by years of field-tested success and thousands of customers, NH Oil Undercoating® has earned strong reviews from consumers and applicators alike. We didn’t just build a product. We built a reputation for protection that lasts.

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.

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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

Starting at $1599

Website Services Available - The Whole Package!

Offered to our applicators, 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)
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Online and through participating resellers

Where to Buy NHOU® Products

NHOU® products are available through participating resellers, including NAPA, O’Reilly Auto Parts, Fisher Auto Parts and others. Availability varies by location and product, so check the reseller finder or call ahead.

NAPAO’Reilly Auto PartsFisher Auto PartsAnd more
Find a ResellerShop Online

Buying for Your Shop?

Drums, pails and spray equipment for shops are available too, from complete airless systems to replacement parts.

Browse equipment · Ask about shop quantities
Applicator FAQ

Questions About Getting Started

Do I have to buy a package to get started?
No. Packages are for businesses that want a complete setup, but they’re not required. Tell us about your business, the equipment you already have and what you want to accomplish, and we’ll help you find a practical starting point. Talk to us.
Can I use equipment I already own?
In many cases, yes. Tell us what spray equipment you have and we’ll let you know whether it’s a good fit for NHOU® products and what, if anything, you might want to add.
What support is available, and what requires training or applicator approval?
Any business can talk with us about products and equipment, order NHOU® products, use RustFax and get help building a fleet program. Benefits such as an Authorized Applicator listing on our store locator, hands-on training, co-marketing, warranty program participation and the applicator network require training, approval and an applicator arrangement. We’ll explain what applies to your business.
Can I use RustFax without purchasing a package?
Yes. RustFax is free and available now on the Apple App Store and Google Play. You don’t need to buy an NHOU® equipment package. Using RustFax makes you a participating RustFax applicator, which is separate from becoming an NHOU® Authorized Applicator.
What does my customer receive through RustFax and My Steward Registry?
A record of the work: photos, video and technician notes tied to their vehicle. They can see what was done and receive their report, then claim their vehicle free on My Steward Registry, where they can keep adding their own maintenance records. When they sell, that history helps show the care they’ve put into the vehicle. See what customers receive.
Can NHOU help me pursue municipal and fleet work?
Yes. We can help you build a documented corrosion-prevention program and approach towns, municipalities and public fleets with it. For qualifying public transportation fleets, certain eligible preventive-maintenance costs may qualify for up to 80% federal funding, and we can help explore those opportunities and work through the requirements with the administering agency. Funding doesn’t apply to every municipal vehicle, and the agency determines eligibility and approval.
Where can I purchase NHOU products?
Online in our store, and through participating resellers including NAPA, O’Reilly Auto Parts, Fisher Auto Parts and others. Availability varies by location and product. Find a reseller.
How do I get involved?
Fill out the contact form below and choose what you’re interested in: becoming an applicator, RustFax, equipment and products, or fleet opportunities. We’ll follow up with the right next step.

Ready to transform rustproofing into a competitive advantage?
Let’s protect vehicles—and profits—together.

Tell Us About Your Business

Whether you want a complete setup, a smaller first step, RustFax for your shop or help pursuing fleet work, start here. Tell us what you do today and what you want to accomplish, and we’ll follow up with a practical next step.

  • Becoming an authorized applicator
  • RustFax
  • Equipment and products
  • Fleet opportunities

Prefer to talk? Call (603) 491-9012 or email [email protected].

Contact Us

We’ll get back to you within one business day.

Call (603) 491-9012, email [email protected], or use our contact page.

Contact Us