Built to Battle the Elements. Powered by NHOU®
Defy the Elements®

NHOU after compare
NHOU before compare

Why NHOU®? Your Vehicle Already Knows the Answer

Modern vehicles are built with lightweight metals and complex seams that trap moisture and road salt—prime conditions for rust. NHOU undercoatings are engineered to penetrate deep into seams, spot welds, and folds, blocking out moisture and oxygen to stop corrosion at the source. Our Mil-Spec formulas are lab-tested and proven in real-world conditions to deliver long-lasting rust protection.

Select the NHOU® System That Works Best for You

New Vehicle

Our renowned NHOU BOSS WAX undercoating is only available for brand new vehicles. It features a clean, matte-black finish and comes with a lifetime, transferrable warranty.

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Light Rust

Light rust is ideal for our semi-permanent Hybrid undercoating that provides long-lasting, mil-spec protection—or choose our proven, Original Oil Undercoating.

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Heavy Rust

Heavily rusted vehicles get instantly transformed with our Original Black Oil Undercoating that creeps, migrates and prevents future rust. Also available in Clear.

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Our Customers Speak. Their Vehicles Thank Them

NHOU® is the only undercoating brand with its own high-volume service shop, treating thousands of vehicles annually. This gives us unmatched insight into real-world performance. Backed by our in-house lab and expert chemists, we’re constantly evolving our formulas to stay at the cutting edge of rust protection. Don’t just take our word for it—see what our customers are saying.

Why Oil-Based Rustproofing Is the Smart Choice

Unlike paint or traditional undercoatings that trap moisture and rust, NHOU®’s mineral-oil-based formulas penetrate through rust to the base metal. They displace moisture, eliminate oxygen, and self-heal—stopping rust at the source. Designed to reach deep into seams, cavities, and welds, they form a lasting barrier against the elements.

Outlast the Elements. Trust NHOU®
Protection Against Road Salt Brine

Modern salt brines are far more corrosive than traditional rock salt. These liquid solutions—often containing magnesium and calcium chloride—creep deep into body cavities and aggressively attack your vehicle’s frame. Car washes won’t fully remove them and can even push brine deeper. NHOU® undercoatings are lab-engineered and road-tested to seal out brine, block oxygen, and stop rust before it starts.

Where the Road Fights Back, NHOU® Fights Harder.

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