Undercoating

Rust inhibitors for cars and trucks

The Need for Rust Inhibitors for Vehicles in Sub-Zero Temperatures

Your car — an investment second only to your home (unless you’ve paid college tuition) — is rotting out from under you.

Road brine
is a treatment for highways and local roads, especially in regions experiencing sub-zero temperatures during winter. While it prevents slipping and sliding on icy roads, road brine has a hidden cost: it accelerates rust on vehicles, particularly on the underside.

Road brine and rust inhibitors

Road brine combines salt and water to prevent roads from freezing, ensuring safer driving conditions. However, it eats away at the underside of vehicles, as car rust and corrosion are caused by the acid formed when salt dissolves in the presence of moisture.


undercoating truck car Rust inhibitors

Magnesium chloride, often added to road brine, keeps vehicle surfaces wet, which accelerates rust. This process corrodes the metal chassis, leading to worsened vehicle performance and potential safety issues. Rust caused by road brine is linked to numerous accidents across the United States.
Examples can be found across the nation.

Rust Inhibitors for Cars and Trucks – What Are They?

Rust inhibitors are chemical compounds applied to vehicles to prevent corrosion. Most inhibitors are sprays applied to the underside of the vehicle. These sprays create a protective barrier, displacing moisture and cutting off oxygen, which are essential for rust formation.

DIY kits for applying rustproofing sprays are affordable and recommended annually, especially in spring when roads are dry. Alternatively, you can find professional services to apply oil-based rustproofing for your vehicle.

Why Choose Oil-Based Rustproofing?

Oil-based rustproofing with corrosion inhibitors creates a barrier against moisture and road brine, protecting the vehicle’s underside. Unlike rubberized coatings, oil-based solutions penetrate deep into body cavities, seams, and spot welds where rust often begins.
NH Oil Undercoating® provides long-lasting rust prevention and is an effective way to safeguard your investment.

How Does NH Oil Undercoating® Work?

  • Penetrates & Lubricates: The oil displaces moisture and oxygen, stopping oxidation and corrosion while providing lubrication.
  • Stops Electrolysis: The non-conductive formula prevents electrical corrosion by breaking external circuits.
  • Forms a Protective Film: The microscopic film bonds to metal surfaces, shielding them from environmental factors.

NH Oil Undercoating® is specifically formulated to creep into cracks, crevices, and seams, providing protection in areas prone to moisture retention and rust.

When It Comes to Auto Corrosion Prevention… We’ve Got You Covered!

See the Difference for Yourself!

All our specialized products protect your vehicle against corrosion damage caused by salt, liquid de-icing, and winter driving conditions. Protect your investment today with NH Oil Undercoating®.

NH Oil Undercoating for Trucks & Cars

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