Auto Rustproofing & Undercoating

The fact is, a new vehicle is subjected to thousands of spot welds and numerous bends and folds during production.

This process damages the pre-coated metal, allowing exposure to the corrosion process. Besides cosmetic damage, corrosion also weakens a vehicle’s structural integrity.

The introduction of liquid road brine has made roads safer but has a toxic, corrosive effect on your vehicle’s undercarriage. Because the solution is liquid, it seeps into nooks and crannies that traditional rock salt couldn’t. These areas are prone to holding moisture and are often left unprotected.
Click here to learn more about the effects of road salt brine on vehicles.

DIY Rustproofing & Undercoating

For the handymen and DIY enthusiasts, NH Oil Undercoating® offers a perfect solution.



Our product is cost-effective and allows you to ensure the job is done right at home.

• Save money with affordable DIY solutions.
• Ensure proper application for lasting results.
• Use safe, user-friendly products suitable for home use.

NH Oil Undercoating® products are cheaper than dealership options and can be applied with a brush or sprayer, ensuring no hard-to-reach areas are missed. Our product is also one of the most effective and long-lasting undercoating shields on the market today.
Read customer reviews here.

NH Oil Undercoating® DIY Kits

NH Oil Undercoating® is environmentally friendly and offers superior protection against rust. DIY kits are available in clear and black tints, with sizes ranging from 1-gallon cans to 55-gallon drums. Each kit includes a flexible 28″ wand for easy application in hard-to-reach areas.

Benefits of NH Oil Undercoating®

• Safety: Prevents rust-related safety hazards.
• Cost Savings: Annual treatments reduce costly rust repairs.
• Resale Value: A rust-free undercarriage maintains higher resale value.
• Extended Vehicle Life: Protects your investment from early corrosion.

Check out before-and-after photos on our
Facebook page.

Advanced Rustproofing Options

For more aggressive rustproofing projects, consider our
Rustoration® Rust Converter. This treatment eliminates up to 90% of accumulated rust and works in conjunction with NH Oil Undercoating® for maximum protection.

Kevin’s DIY Story

Kevin Read, a 20-year auto body and paint veteran, keeps his 2006 Chevrolet Aveo rust-free by annually disassembling and treating it with rustproofing.
Read Kevin’s full process here.

When it comes to auto corrosion prevention… We’ve got you covered!

See the difference for yourself!

DIY Auto Rustproofing & Undercoating Video

Workshop Series: Part 1

• Introduction to NH Oil Undercoating® Oil-Based Rustproofing
• Surface preparation and inspection
• The science behind oil-based rustproofing
• Equipment and maintenance

Watch the video here: