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Corrosion FREE

Clear penetrating film

Rust Cure Formula 3000 creeps into accessible seams and folds and leaves a clear film on treated metal. Choose body cavities, underbody, or full-vehicle coverage.

From $85 CAD
Free underbody cleaningAllow 1.5–2 hours
Book / Get a Quote905-261-6888

Before and after

Corrosion FREE · Before spraying
Before spraying
Corrosion FREE · After spraying
After spraying

Clear film on the metal; the original surface remains visible.

Corrosion FREE official comparison · Reference case. Finish varies with the vehicle, preparation, and formula used.

Prices by vehicle size CAD

Listed prices are in CAD and use the Markham and Thornhill price guide. Confirm availability, applicable tax, and the final total with your service location.

CoverageSedanSUVXL
Body cavities only$85$95$105
Underbody only$85$95$105
Full vehicle$155$175$195

For one-time van or pickup service, ask the shop for a vehicle-specific quote.

The full-vehicle package uses Corrosion FREE on the accessible body cavities and underbody areas in the work order.

Where we spray

Illustrations show typical locations. We confirm accessible areas and the scope on your work order after reviewing the vehicle and manufacturer guidance.

FrontRear
Vehicle underside with gold shading on the accessible floor pans, frame and other exposed metal. The exhaust and wiring are shaded red.
Accessible exposed metal we treatExhaust and wiring to avoid

Underbody and exposed metal

We coat accessible, exposed metal across the underbody. The numbers point to key areas.

  1. Front and rear subframes

    Accessible subframe surfaces and mounting points.

  2. Longitudinal rails

    Accessible side rails and adjoining metal surfaces.

  3. Floor pans, seams and welds

    Accessible floor pan surfaces, crossmember joints, and welds.

  4. Selected exposed metal

    Eligible suspension metal or steel lines where the manufacturer and work order allow treatment.

Side view showing door cavities, rocker panels, wheel arches, hood and tailgate edges.
Typical treatment area

Body cavities and seams

The full-vehicle package uses Corrosion FREE on the accessible body cavities and underbody areas in the work order.

  1. Door bottoms

    Accessible lower inner metal, folded seams and door corners. Drain openings stay clear.

  2. Rocker panels

    The accessible cavities below the doors, their ends, and metal joins.

  3. Wheel arches and fenders

    Accessible metal lips and seams behind the liners. Scope is confirmed on the work order.

  4. Hood

    Accessible folded edges and seams on the inner side, as the vehicle allows.

  5. Tailgate or trunk lid

    Accessible lower folds, seams, and corners inside the panel.

Close-up diagrams

Door bottoms
Door bottoms

Accessible lower inner metal, folded seams and door corners. Drain openings stay clear.

Rocker panels
Rocker panels

The accessible cavities below the doors, their ends, and metal joins.

Wheel arches and fenders
Wheel arches and fenders

Accessible metal lips and seams behind the liners. Scope is confirmed on the work order.

Hood
Hood

Accessible folded edges and seams on the inner side, as the vehicle allows.

Tailgate or trunk lid
Tailgate or trunk lid

Accessible lower folds, seams, and corners inside the panel.

Where we avoid spraying

These areas are checked on all rust-protection packages. For hybrid and electric vehicles we review the model-specific restrictions first.

Brake friction surfaces and tires

Brake friction surfaces and tires

We avoid brake rotors, pads, other friction surfaces, and tire treads.

Hot, moving, or sensitive rubber parts

Hot, moving, or sensitive rubber parts

We avoid hot exhaust areas, belts and pulleys, and designated soft rubber parts.

Sensitive electrical and high-voltage areas

Sensitive electrical and high-voltage areas

We follow manufacturer guidance for connectors, high-voltage wiring, battery areas, and vents.

We keep original door and tailgate drain openings clear. The fuel filler opening and manufacturer-restricted areas are avoided.

What happens at your appointment

  1. Inspect and confirm

    We review the vehicle, previous coatings, selected coverage, and price.

  2. Clean and dry

    We clean the underbody free of charge and let it dry before treatment.

  3. Apply and recheck

    We apply the selected product to the agreed areas and check the protected and avoided zones before handover.

Get a quote for your vehicle

Send your year, make, model, and preferred location so we can confirm the coverage and total.

Book / Get a Quote905-261-6888