Fluid Film Undercoating in Door County, WI

Ultimate Automotive Corrosion Resistance and Undercoating Protection

When it comes to protecting your vehicle from rust and corrosion, Bayside Auto is your go-to destination. As an authorized Fluid Film installer, we provide top-notch undercoating services designed to safeguard your vehicle’s undercarriage from the relentless effects of road salt, brine, moisture, and harsh weather. With options for black or clear coatings, our service is tailored to meet the needs of every driver, whether you own a daily driver or a heavy-duty truck.

Door County’s Premiere Choice for Underbody Protection

Unlike traditional undercoatings that harden and crack, Fluid Film remains soft, pliable, and self-healing, ensuring maximum protection and durability. Whether you’re dealing with harsh Midwest winters or want to preserve the value of your vehicle, our expert team applies Fluid Film with precision, so you can drive with confidence, knowing your vehicle is shielded against corrosion and rust.

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Fluid Film Undercoating Service

$500 for cars,small SUVs and compact trucks

$650 for larger trucks and SUVs (Chevy Suburban, F350, etc)

This Package Includes:

  • Black or clear (original) coating options
  • Rust prevention and protection from spread
  • Breathable, self-healing coating
  • Cavity wax treatment for hidden areas
  • Protection against moisture and road salts
  • Durable in all weather conditions
  • Non-toxic, eco-friendly formula
  • Complementary wash and sealant after service
  • Annual touch-ups recommended for best results
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What Is Fluid Film Undercoating?

Fluid Film is a lanolin-based undercoating product specially designed to prevent the spread of rust and corrosion. Unlike traditional undercoating products, Fluid Film is a “stay-wet” coating that doesn’t harden or crack, offering long-lasting protection in the toughest conditions.


Manufactured through a detailed heating and blending process, Fluid Film combines unrefined wool wax with selective polar agents and corrosion inhibitors to create a flexible and durable barrier. This unique formula penetrates metal on contact, creating a self-healing layer that slows down and prevents the spread of existing rust.

More than Corrosion Protection

Applied to your vehicle’s undercarriage, Fluid Film offers more than just rust protection. It creeps into hard-to-reach areas, lubricates moving parts and is non conductive and will not harm electronics. Whether you’re protecting a snowplow, salt spreader, or personal vehicle, Fluid Film offers unmatched performance and peace of mind.

Why Invest In Underbody Protection For Your Vehicle?

Unmatched Rust Protection

Fluid Film prevents rust from spreading. Its lanolin-based formula penetrates to the metal’s surface, forming a durable barrier that prevents moisture and salt from corroding your vehicle. Unlike traditional coatings, it remains soft and pliable, offering continuous protection without cracking or flaking.

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Breathable and Self-Healing

Unlike other undercoatings that trap moisture and lead to further rust, Fluid Film allows your vehicle’s undercarriage to breathe. Its self-healing properties ensure that any scratches or abrasions are automatically resealed, keeping your vehicle protected in any condition.

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Eco-Friendly and Safe

Fluid Film is non-toxic, non-hazardous, and free of silicone and Teflon, making it a safe choice for your vehicle and the environment. It won’t harm most paints, plastics, or rubber, so you can use it with confidence on any part of your car.

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All-Weather Durability

Whether you’re battling Midwest winters or braving salty coastal roads, Fluid Film is built to last. It resists water wash-off, won’t freeze, and protects your vehicle even in subzero temperatures. Its superior performance ensures your vehicle stays rust-free year-round.

FAQs for Fluid Film Undercoating

  • What types of vehicles can benefit from Fluid Film undercoating?

    Fluid Film is suitable for all vehicles, including cars, SUVs, trucks, snowplows, and salt spreaders. It’s especially beneficial for vehicles exposed to harsh road conditions, such as winter salt, gravel, or coastal moisture.

  • Does Fluid Film harm paint or rubber components?

    No, Fluid Film is safe for most paints, plastics, and oil-resistant rubbers. Its gentle, lanolin-based formula ensures that it protects without causing damage, even in sensitive areas.

  • How often should I reapply Fluid Film?

    We recommend annual touch-ups or reapplication every 15,000 miles, whichever comes first, to maintain optimal protection. Regular maintenance ensures your vehicle remains shielded against rust and corrosion year-round.

  • Is Fluid Film eco-friendly?

    Yes, Fluid Film is non-toxic, non-hazardous, and environmentally safe. Its lanolin-based formula offers a biodegradable solution that protects your vehicle without harming the planet.

  • What areas of my vehicle will be treated?

    Our service includes undercarriage protection and cavity wax application for doors, fenders, hood, and other hard-to-reach areas. This comprehensive treatment ensures every vulnerable spot is coated for maximum rust prevention.

  • Can Fluid Film be used in extreme weather conditions?

    Absolutely! Fluid Film is resistant to freezing, water wash-off, and subzero temperatures, making it ideal for harsh climates. Whether you’re dealing with icy roads or salty coastal air, Fluid Film keeps your vehicle protected.

  • What’s included in the service?

    Our Fluid Film package includes complete undercoating, cavity wax treatment, and a complementary wash and sealant. Every detail is handled with care to ensure the best protection for your vehicle.

  • How much does the service cost?

    Pricing starts at $500 for cars, small SUVs, and compact trucks, with larger vehicles starting at $650. Contact us for a custom quote tailored to your specific vehicle and needs. Additional touch-up services are also available at competitive rates.

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