Professional oil-based undercoating in Bowmanville — Coat & Protect by Rust Check. Dripless, flexible, and never rubberized. From $75 standalone or included free in full Rust Check.
Coat & Protect is the oil-based undercoat component of the Rust Check system — a thick, vaseline-type oil product applied to the exposed undercarriage of your vehicle. It covers frame rails, crossmembers, suspension arms, brake lines, and floor panels with a continuous oil film that never dries, never hardens, and never cracks. It is available as a standalone service starting at $75 for cars, or included at no extra charge with a full Rust Check application.
This is not a rubberized undercoating spray. Rubber sprays dry, cure, and eventually crack — trapping moisture between the rubber and the metal, making corrosion worse. Coat & Protect stays flexible indefinitely, maintaining direct contact with metal surfaces at all times. It is the only type of undercoating we offer.
Coat & Protect
Standalone oil-based undercoat
Covers frame, suspension, brake lines, floor pans
Oil-based — never dries, never cracks
NOT rubberized — does not trap moisture
Dripless — safe to park immediately
Can be applied between annual Rust Check treatments
Standalone Undercoat Pricing:
Small Car / Hatchback:$75
Full Size Car / Sedan:$80
Mid-Size SUV (5 Seat):$90
Minivan / Large SUV (7-Seat):$100
2 Door Truck / Cargo Van:$100
4 Door Truck:$110
Dually:$120
Full Rust Check
Two-step — undercoat included free
Coat & Protect undercoat included at no extra charge
Licensed Rust Check dealer — same process Canada-wide
Annual treatment — best protection strategy
Full Rust Check Pricing:
Small Car / Hatchback:$140
Full Size Car / Sedan:$150
Mid-Size SUV (5 Seat):$160
Minivan / Large SUV (7-Seat):$170
2 Door Truck / Cargo Van:$180
4 Door Truck:$190
Dually:$200
Undercoat included. $10 drill charge only if access holes needed.
Oil-Based vs Rubberized: Why It Matters
Coat & Protect (Oil-Based)
Never dries, hardens, or cracks
Maintains contact with metal indefinitely
Self-heals minor damage
Penetrates surface imperfections
Does not trap moisture
Rubberized Undercoating
Dries and hardens over time
Develops cracks as it cures
Traps moisture between rubber and metal
Cannot reach surface imperfections
Accelerates corrosion once cracked
FREQUENTLY ASKED QUESTIONS
What is the difference between Coat & Protect and full Rust Check?
Coat & Protect is the undercarriage component only. Full Rust Check adds the penetrating drip formula that enters body cavities through access holes, treating hidden areas inside doors, rockers, and pillars. Full Rust Check is more comprehensive. Coat & Protect standalone is best as a supplemental treatment.
Will undercoating drip on my driveway?
Coat & Protect is dripless — you can park normally immediately. Full Rust Check includes penetrating drip oil that drips for 1-3 days through small body cavity access holes. Most customers park on the street or use a tarp for a few days after.
Can I get undercoating without full Rust Check?
Yes. Standalone Coat & Protect is available from $75 for cars. It covers the exposed undercarriage without the body cavity treatment. Good option for vehicles getting a top-up between annual Rust Check treatments.
When is the best time to book?
Fall — September through November — before the first heavy salt application of the season. Annual treatment maintains the best protection through Ontario winters. We offer undercoating year-round.
