Dynamic protection that adapts, creeps, and heals. When you need an undercoating that won't chip, crack, or flake under stress, this oil-based combination pack is your ultimate solution. We’ve assembled the perfect trio of products to help you prep, apply, and maintain a soft, active barrier that continuously fights off rust and corrosion.

Unlike traditional hard coatings, this oil-based system remains fluid. It actively migrates into the deepest crevices, micro-cracks, and hard-to-reach cavities of your vehicle's frame. If the surface gets scratched by road debris, the coating simply flows back over the wound, self-healing the breach to keep moisture and oxygen locked out.

What’s in the Kit?

This bundle includes everything you need for a professional-grade, rust-stopping application:

• Salts Gone® Hose End Sprayer: Flawless protection requires a salt-free surface. Easily flush away highly corrosive winter road salts and coastal brine before applying your undercoating, ensuring the oil bonds to clean metal rather than trapped contaminants.

• Undercoating Rustproofing Gun: Achieve an even, factory-quality spray pattern. This specialized pneumatic gun is designed to handle the viscosity of Under Gone™, allowing you to coat large areas quickly and blast protection deep into boxed frames and hidden panels.

• 2 Gallons of Under Gone™ Undercoating: The star of the show. This premium, oil-based formula acts as a highly effective moisture displacer and rust inhibitor. It stays soft, never dries out, and continuously creeps to provide an impenetrable, self-healing barrier against the elements.

Key Benefits

• Self-Healing Technology: Never worry about rock chips compromising your rust protection; the fluid nature of the oil naturally reseals scratches and scrapes.

• Deep Penetration: The creeping action actively wicks into seams, spot welds, and structural cavities where traditional paints simply cannot reach.

• Turnkey Application: With the included preparation wash and specialized application gun, you have a complete, professional-level rustproofing system right out of the box.