Woolwax Undercoating - Grid Werks Automotive

Grid Werks Automotive · Rustproofing Services

Woolwax Undercoating
/ Rustproofing Service

Professional Woolwax lanolin-based undercoating applied to your entire undercarriage — frame rails, floor pans, suspension parts, and exposed metal surfaces. A proven, non-hardening formula that creeps into seams and self-heals minor scratches to protect against road salt and corrosion year-round. Rotating parts, engine, transmission, and brakes are masked and not coated.

✓ Lanolin-Based Formula ✓ Non-Hardening ✓ Self-Healing ✓ Full Undercarriage ✓ Salt & Corrosion Defense

⚠ Before Your Appointment

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Remove Plows & Accessory Mounts — All plows, accessory mounts, and tools that increase vehicle weight must be removed prior to arrival.

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Pre-Wash Your Vehicle — Please run your vehicle through a car wash with the underbody blast option before drop-off. Vehicles requiring cleaning upon arrival may be subject to an additional cleaning fee.

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Wheel Locks in Cup Holder — If your vehicle has wheel locks, please place them in the cup holder before drop-off to avoid added labor charges from searching for items necessary to complete the service.

2027 Pricing

Compact / Midsize Auto <15ft

e.g. Honda Civic, Toyota Camry

$385

Full Size Sedan >15ft

e.g. Chevy Impala, Dodge Charger

$415

Compact Pickup / Uni-Body Crossover <16ft

e.g. Ford Maverick, Subaru Crosstrek

$469

Uni-Body SUV / Minivan

e.g. Toyota Sienna, Ford Explorer

$495

½ Ton Pickup / Large Van / Full Frame SUV <19ft

e.g. Ford F-150, Chevy Tahoe, 4Runner

$515

Crew Cab ½ Ton & ¾ Ton Pickup >19ft

e.g. Crew Cab F-150, Chevy Silverado 2500

$539

1 Ton Pickup Truck

e.g. Ford F-350, Ram 3500

$569

Add-On: Salt Neutralizer Wash — Full Frame Flush

+ $150

Full undercarriage and frame flush — neutralizes road salt throughout the entire underside and prepares the surface for maximum Woolwax adhesion. Recommended before undercoating.

Add-On: Salt Neutralizer Wash — Exterior Only

+ $75

Exterior body wash to neutralize surface salt — does not include the undercarriage frame flush.

Toyota & Lexus Vehicles — Clip Fee

+ $25

Toyota and Lexus vehicles require a flat $25 clip fee due to the higher volume of plastic retainer clips used on these models. This covers careful removal and reinstallation of all factory clips during the service.

Broken / Missing Clips Fee

+ $15

If any clips on your vehicle are broken or missing during service, a flat $15 replacement fee applies — we’ll always notify you before proceeding.

Add-On: Loose / Scaled Rust Removal — Needle Scaler

$90 / hr

Mechanical removal of loose and scaled rust using a pneumatic needle scaler before undercoating. Requires in-shop estimate before scheduling.

Request Estimate

Add-On: Rust Converting Primer

$275 – $475+

Chemical primer applied to remaining rust-affected surfaces to stop oxidation and bond with metal. Requires in-shop estimate before scheduling.

Request Estimate

Combination Packages — Woolwax + Inner Cavity Wax

Bundle both services for the most complete corrosion protection we offer.

Compact / Midsize Auto <15ft

e.g. Honda Civic, Toyota Camry

$665

Full Size Sedan >15ft

e.g. Chevy Impala, Dodge Charger

$718

Compact Pickup / Uni-Body Crossover <16ft

e.g. Ford Maverick, Subaru Crosstrek

$829

Uni-Body SUV / Minivan

e.g. Toyota Sienna, Ford Explorer

$878

½ Ton Pickup / Large Van / Full Frame SUV <19ft

e.g. Ford F-150, Chevy Tahoe, 4Runner

$951

Crew Cab ½ Ton & ¾ Ton Pickup >19ft

e.g. Crew Cab F-150, Chevy Silverado 2500

$984

1 Ton Pickup Truck

e.g. Ford F-350, Ram 3500

$1,032

Combination package includes both the full Woolwax Undercoating service and the Inner Cavity Wax / Rustproofing service. All add-on fees (Salt Neutralizer Wash, Toyota/Lexus clip fee, broken/missing clips) apply separately where applicable.

What’s Included

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Frame RailsFull underside frame coverage

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Floor PansUnderside floor pan and cross members

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Rocker PanelsLower body sills and exposed edges

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Suspension ComponentsControl arms, subframe, and brackets

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Woolwax ApplicationProfessional spray application of lanolin-based formula

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Pre-Service InspectionVisual inspection of undercarriage before application

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Removal of Spare TireSpare tire removed, underside treated with Woolwax for full coverage, then reinstalled

What’s Included: Undercoating covers your full undercarriage including up to 3 underbody panels (wheel wells not included).

Wheel Wells: Wheel well liners are included in our Inner Cavity Wax service. They can be added to a standalone undercoating appointment for approximately $60 per pair of wheel liners.

Service Process

Inspection

Full undercarriage visual inspection. We document pre-existing rust or damage before any work begins.

Salt Wash (Optional)

Salt Neutralizer Wash removes corrosive road salt and preps the surface for maximum Woolwax adhesion.

Woolwax Application

Lanolin-based Woolwax is sprayed to full undercarriage coverage — frame, floor pans, wells, and suspension.

Reassembly

Final inspection to ensure full coverage and everything is properly secured.

Frequently Asked Questions

What is Woolwax?

Woolwax is a premium lanolin-based undercoating derived from natural wool grease. Unlike tar or rubberized coatings, it doesn’t crack or harden — it stays pliable, self-heals minor surface scratches, and actively creeps into seams and crevices for deep corrosion protection.

How long does the service take?

Woolwax Undercoating is a full day service. Plan to drop off your vehicle in the morning and pick it up by end of day. If you’re also adding the Salt Neutralizer Wash or combining with Inner Cavity Wax, plan for a full day as well — we’ll confirm timing when you book.

Will it smell after the service?

It may have a mild scent — Woolwax is among the lowest-odor lanolin coatings on the market. However, some tight or enclosed spaces require aerosol application to ensure full coverage, and the aerosol version does carry a stronger odor that can be more noticeable for the first week or two, particularly when the vehicle is warm. This is completely normal and fades over time. It is not harmful.

How often should it be reapplied?

We recommend a reapplication check every 1–2 years. Woolwax doesn’t peel or flake off like hard coatings, but annual or biannual top-ups keep the coverage optimal — especially for vehicles driven in heavy salt conditions.

Can it be applied over existing rust?

Yes. Woolwax is effective on surface rust — it encapsulates and slows further oxidation. However, for the best results we recommend loose, scaled rust be removed and a rust-converting primer applied to affected areas prior to service. We also recommend our Salt Neutralizer Wash beforehand to maximize adhesion and treatment effectiveness.

Does Woolwax get on the exhaust or get in the way of anything?

We carefully avoid spraying directly on exhaust pipes and catalytic converters. Nearby heat shields may receive some overspray and will burn off harmlessly. The product is non-flammable at ambient temperatures.

Toyota & Lexus Clip Fee

Toyota and Lexus vehicles use a significantly higher volume of plastic retainer clips throughout the undercarriage and. Due to this, all Toyota and Lexus services include a flat $25 clip fee — this covers the careful removal and reinstallation of factory clips required to access the treatment areas.

Broken / Missing Clips

If any clips on your vehicle are broken or missing during the service process, a flat $15 fee applies to cover replacement clips. We will always inspect and notify you before proceeding — you’ll never be surprised by this charge.

Should I do Woolwax or Inner Cavity Wax — or both?

They protect different areas. Woolwax covers your exposed undercarriage — frame, floor pans, and suspension. Inner Cavity Wax protects the enclosed hollow sections inside your doors, rocker panels, fenders, and frame cavities that undercoating can’t reach. For maximum protection, we recommend both — see our combination packages above.

Woolwax is a professional-grade lanolin undercoating. Results vary by vehicle age, pre-existing corrosion, and road conditions. We recommend annual inspections to maintain optimal coverage.

Protect Your Vehicle

Schedule Your Woolwax Service

Full day drop-off service in Palatine, IL — book online or give us a call.

Book an Appointment View Inner Cavity Wax

Service Disclaimer & Limitation of Liability

Manufacturer & Factory Defects: Grid Werks Automotive is not liable for any pre-existing manufacturer defects, factory rust-through, factory seam sealer failures, structural deficiencies, or any condition originating from the vehicle’s original manufacture or assembly.

Aftermarket Parts & Accessories: Grid Werks Automotive assumes no responsibility for damage to, or caused by, aftermarket parts, accessories, lift kits, suspension modifications, running boards, mudflaps, trailer hitches, custom exhaust systems, or any other non-OEM components installed on the vehicle. Customers are responsible for disclosing all aftermarket modifications prior to service.

Pre-Existing Conditions: Grid Werks Automotive is not responsible for damage resulting from pre-existing rust, corrosion, rot, deteriorated undercoating, cracked or compromised seam sealer, damaged undercarriage components, or any other conditions present on the vehicle prior to the service date. All services are performed on the vehicle in the condition received.

Corrosion Protection Limitations: Woolwax undercoating and cavity wax services are designed to slow and inhibit corrosion. Results vary based on vehicle age, condition, prior rust damage, road salt exposure, and maintenance frequency. No rust protection product — including lanolin-based formulas — can guarantee complete prevention of corrosion. Grid Werks Automotive makes no warranty, express or implied, regarding corrosion-free results.

Damage Reporting: Any concerns regarding the service performed must be reported to Grid Werks Automotive before the vehicle leaves the property. Grid Werks Automotive cannot accept responsibility for claims reported after the vehicle has been removed from our facility.

Limitation of Liability: In no event shall Grid Werks Automotive’s total liability to any customer exceed the amount paid for the service rendered. Grid Werks Automotive shall not be liable for any indirect, incidental, special, or consequential damages of any kind arising out of or related to the services provided.

By scheduling and receiving services at Grid Werks Automotive, the customer acknowledges and agrees to the terms outlined above. This disclaimer applies to all services offered including but not limited to undercoating, cavity wax, rust treatment, and salt neutralizer wash.

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