Noxudol undercoating product

Noxudol — Our Primary System

Professional European-engineered cavity wax + underbody coating. Durable, inspection-friendly, and proven in harsh climates.

Learn about Noxudol 900 & 750
Woolwax rust prevention

Woolwax® — Annual Film Option

Lanolin-based, non-drying, self-healing film for customers who prefer a clear, solvent-free option with annual refresh.

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Rust Prevention in Northern Virginia

In our region, VDOT’s winter brine pre-treatment and year-round moisture mean unprotected steel corrodes faster. Automotive Protection Services — Fairfax, VA delivers high-quality undercoating & rustproofing using Swedish-engineered Noxudol, backed by a 10-year written warranty on qualifying vehicles. Metal + oxygen + moisture = oxidation; salt accelerates it. With the right products and process, you can stop it before it starts.

Questions about your vehicle or use case? Reach out — we’ll walk you through the right protection plan.

Why Winter Road Salt Causes Long-Term Vehicle Damage

Winter damage doesn’t stop when snow melts.

Road salt and brine remain on vehicle surfaces long after roads look dry. That chemical residue traps moisture against steel, working its way into seams, welds, suspension components, and underbody cavities.

  • Accelerated corrosion
  • Rust forming in hidden structural areas
  • Premature wear on frames and underbody components

Professional undercoating creates a protective barrier that blocks moisture intrusion and slows oxidation — helping vehicles last longer in Northern Virginia’s winter driving conditions.

Undercoating (Undercarriage Protection)

Step 1: Deep clean. We remove road grime, brine, mud, grease, and sand; then dry with high-pressure air on our four-post, drive-on lift.

Step 2: Cavity wax foundation. Noxudol cavity wax is applied inside frame and floor pan to displace moisture and prime internal seams.

Step 3: Mask & protect. Components not meant to be coated — exhaust, driveshaft, shocks, brake hardware — are masked.

Step 4: Noxudol 900 underbody coating. A thick, abrasion-resistant layer on frame rails, floor pans, rockers, wheel wells — everything that doesn’t move or get hot.

Qualifying vehicles receive a 10-year written warranty from Noxudol. See store for details.

Rustproofing (Upper-Body Cavity Wax)

We apply moisture-displacing cavity wax inside doors, rocker panels, hatch/tailgate, trunk lid, hood, and other internal cavities. This seals out air and moisture where rust often starts — from the inside out.

The combination of a waxy internal film + durable underbody barrier is the gold standard for long-term protection in our climate.

Rust Eliminator / Converter

For vehicles showing surface rust, we mechanically remove scale where possible (wire wheels/brushes), then apply a tannic, acid-based rust eliminator (similar to POR-15). It chemically stabilizes the oxidized metal and cures in ~8–12 hours. Once cured, the surface is ready for undercoating.

Severe perforation or structural rust may require repair prior to coating — we’ll advise you honestly after inspection.

Serving Fairfax and the broader Mid-Atlantic — contact us to stop rust from gaining a foothold.

Schedule & Turnaround

  • New vehicles: Often same-day application; we recommend overnight cure time when possible.
  • Rust remediation + coating: Typically 1–2 days depending on scope.
  • Military & First Responders: 10% off initial services — thank you for your service.
  • Night drop and after-hours drop-off available.
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Undercoating Options: Woolwax® vs. Noxudol 900

We offer two high-performance systems. Woolwax® (lanolin-based) excels as a non-drying, self-healing film. Noxudol 900 (bitumen-wax) dries to the touch and forms a thick abrasion-resistant barrier. Choose based on use, maintenance preference, and desired finish.

Woolwax® Rust Prevention Undercoat

  • Lanolin-based, solvent-free, non-hazardous; applied clear, drip-controlled.
  • Leaves a soft, self-healing film; does not dry out.
  • Excellent for harsh, salty environments; annual re-application recommended.

Noxudol 900 Underbody Coating

  • Thixotropic, chemically stabilized blend of bitumen, waxes, rust inhibitors, and solvents.
  • Dries to the touch, resists abrasion, water, and road salt; black finish.
  • Paired with Noxudol cavity wax for complete inside-out protection.
AspectWoolwax®Noxudol 900
BaseLanolin (wool grease), solvent-free, clearBitumen + waxes + inhibitors, solvent-borne, black
DryingNon-drying; gel-like, self-healing filmDries to the touch; durable barrier
Annual CareAnnual re-application recommendedAnnual inspection recommended; touch-ups as needed (warranty requires maintenance)
Over Existing RustCan sit over light surface rust (remove scale first)Do not apply over active rust — remediate/convert first
Dirt/SandMay collect initial dust/sand; rinses offLow tack once cured; resists buildup

Noxudol 900 — Product Details

Description: Noxudol 900 is a thixotropic, chemically stabilized underbody coating consisting of bitumen, waxes, rust inhibitors, and solvents. It provides preventive rust protection, reliable abrasion resistance, and is water/salt repellent — ideal for underbodies and wheel arches.

Noxudol 750 — Cavity Wax

Description: Noxudol 750 is a chemically active anti-corrosive compound with low surface tension (mineral oil, waxes, rust inhibitors, solvents). It penetrates seams, displaces moisture, and dries to a waxy, moisture-repellent film — engineered for internal cavities (doors, rockers, frames, etc.).

Proven with European OEMs

Noxudol has long roots in European rust-prevention — including historical use with Volvo for cavity protection and underbody treatments. The brand’s portfolio includes solvent-free options and moisture-displacing waxes designed for factory and aftermarket applications. That heritage is why we trust Noxudol for vehicles driven in the Mid-Atlantic.

Undercoating & Rustproofing — FAQs

Will undercoating void my vehicle warranty?

No. Properly applied undercoating/rustproofing does not void manufacturer warranties. It complements your maintenance plan by protecting frames, pans, and seams.

How do you apply the coating?

We deep-clean and dry the underside; remove spare (if under-mounted); mask exhaust, driveshaft, shocks, and brake hardware; then spray a uniform film over frame, pans, wheel wells, and rockers. Internal cavities receive a moisture-displacing wax.

Can undercoating cause rust?

No. Rust is oxidation (iron + oxygen + moisture). Quality coatings prevent rust by keeping moisture and salt off the steel.

Do modern cars still rust?

Yes — less than decades ago, but they still corrode, especially in brine/salt states. Seams, welds, and inner cavities are vulnerable.

When should I undercoat?

Best: when new. If rust is present, remediate first; then protect.

Is it too late if I already see rust?

Not necessarily. We can stabilize light corrosion with mechanical prep + rust converter, then coat. Severe rust may require repair prior to coating.

Is undercoating just a dealer upsell?

When done right with the right materials, it works. Our process is transparent and inspection-friendly.

What’s in the coating?

We use Noxudol — a professional-grade, solvent-borne bitumen/wax system — paired with a moisture-displacing cavity wax.

Do you offer a warranty?

Yes — 10-year written warranty on qualifying vehicles (under 36 months/36k at time of service) with annual maintenance/inspection. Ask us for full terms.

How much will it cost?

Final cost depends on vehicle size/condition and any rust remediation. Call us or request a quote for an exact estimate.

A Word from Our Lead Undercoating Technician — Oscar S.

APS undercoating technician applying rust remediation before undercoating

I’ve protected a lot of Northern Virginia daily drivers and work trucks. Salt and brine don’t take days off — but the right prep and the right products make a night-and-day difference.

“You can’t undo rust once it really sets in — you can only stop it from getting worse.”
— Oscar S., Lead Undercoating Tech at APS
  • Clean first, always. We strip off grime, brine, and moisture before we coat.
  • Inside the frame matters. Our cavity wax displaces moisture where rust likes to start.
  • Annual checkups win. Quick inspections keep coatings healthy and your steel protected.
  • Newer vehicles are easiest. The earlier we protect, the better it holds up long-term.

When we install Noxudol 900 with a Noxudol cavity wax base, most of what I see a year later is wear on the coating — not fresh corrosion on the metal. That’s the point: keep the elements off the steel.

Oscar’s Tip: If your vehicle’s over 4 years old or shows surface rust, we’ll do quick remediation first so the coating bonds right and lasts.
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