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Capital Auto Protection’s Rust Protection Serving Madison, WI & Surrounding Cities is designed to protect folds in your vehicle. Corrosion can start in the folds, seams and spot welds of inner body panels, we use special high-pressure applicators and utilize the factory drain holes in your vehicle to ensure that all hard to reach areas of the inner surfaces are protected all without having to drill holes in your vehicle.

Our undercoating products penetrate seams and crevices where rust can begin, seals water from getting into and settling in recessed metal body panels, coats the rust-prone inner areas of your vehicle and protects against salt deposits and other pollutants.

areas we spray


  • New vehicles: with less than 6,500 miles-10 yr warranty
  • Pre-Driven: (current model year plus 3 model years) 6 yr warranty