Custom Auto Accessories

Rust Proofing

Starting at $100

Vehicles in Hawaii are continuously exposed to salt air, coastal humidity, and marine environments. Our internal cavity rust protection treatment is applied within enclosed body panels, structural seams, and frame sections to prevent corrosion from developing where it cannot be seen.

Service Options

  • Standard Rust Proofing — body panels, doors, pillars, seams$350+
  • Inner Frame Rail Upgrade — inside main side rails & cross members+$100

Price varies by vehicle size. Trucks and larger SUVs quoted accordingly.

Professional internal cavity rust protection applied to enclosed body panels

Internal cavity rust protection - applied to enclosed panels, seams, and frame sections

This is internal cavity rustproofing — not undercoating. Applied using targeted cavity wands for full panel penetration, treating the inside of body panels where rust starts before it ever shows on the surface.

Inner Frame Rail Upgrade

For trucks and body-on-frame SUVs, we offer an inner frame rail treatment as an add-on. The product is applied inside the main side rails and cross members — not sprayed on the outside like traditional undercoating. This is where structural rust does the most long-term damage on trucks in Hawaii's environment.