Adam's Invisible Undercarriage Spray 34 Reviews
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Leaves a deep, dark finish for plastic fender liners & underbody parts. Give your vehicle the final touch and ensure every square inch is clean and dressed. Whether you're driving around town or at a car show, Undercarriage Spray is the final touch you want to put on your vehicle.
  • Give your Detail that Crisp, Sharp Look
  • Turn your Ugly Wheel Wells Invisible
  • Quick and Easy to Use
  • Leaves a Black Satin Finish
  • Made In The USA
  • Silica-Infused Formula
  • Grape Soda Scent
We currently offer free shipping in the continental US on orders over $115 after discounts or $6.99 Flat Rate Shipping. If you don't love what you receive, we'll cover shipping back to our door too. Please note, free returns are not included on international orders.
Customer Reviews
4.9 Based on 34 Reviews
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Kade S.
United States United States
I recommend this product

Nice and clean look

This product is awesome. It makes everything from the wheel wells to the entire undercarriage look brand new. It takes a little while to dry, but it is well worth the 10 minute wait. It’s a staple in my detail process for my truck and wife’s SUV. If you’re on the fence about buying, go ahead and place it in your trunk. You won’t be disappointed.

Phillip L.
United States United States
I recommend this product

Amazing product!

This product is so easy to use, just spray on and forget. It really does make the fender liners disappear! That dingy looking area above your tires that you can’t ever seem to get clean? No more! I highly recommend this stuff, it’s in my “must have” list now.

United States United States
I recommend this product


If you want to win best of show, especially highlighting your undercarriage panels and suspension look no further. I apply this every time I detail my rig and reapply it every time I attend the event or show to showcase my vehicle. I trust Adam’s Polishes to give me that extra depth of detail. I am a palled user of this product and will continue to buy it every time

I recommend this product

Love it

Use this every other wash on my jeep and it keeps my undercarriage looking spotless and brand new!

Cynthia G.
Canada Canada
I recommend this product

AP's Under-Carriage Spray

AdamsPolishes' Under-Carriage Spray is one of my essential "must haves" for the winters we have up here in Canada. I love the way the product works and the awesome smell is just such a bonus! I highly recommend it to anyone looking to keep their car looking as new as possible for as long as possible, inner fenders and all!

While you're washing your wheels, spray Adams All Purpose Cleaner in your fender wells and give them a good scrubbing with a fender brush. Let the cleaner dwell while you clean the tire and wheel, then give everything a thorough rinsing. If your wheel wells are really nasty looking, scrub them twice. After washing, allow to air dry, blow dry or towel dry.

Once dry, spray a light coating of Adam's Undercarriage Spray to all areas of the fender well, then work the product in with an old towel. When you're finished, your black fender well liners will have a perfect satin black finish. They literally become invisible and no longer stand out where they can rob your car of its detailed beauty. Now you're ready to detail the rest of your car.

Adam’s Undercarriage Spray is a silicone-based, sprayable fender dressing that is designed to lay evenly and dry to the touch in minutes. Now with added silica-resins, this same great formulation has increased longevity and durability to keep your ride looking detailed for longer! This formula allows users to achieve a rich, wet, lustrous shine on their fender liners, undercarriage components, and underbody areas. Just a few sprays of this product evenly covers your vehicle’s out-of-sight areas and protects them from road grime being built up.

PRO TIP! Adam's Undercarriage Spray can stain concrete if it is allowed to drip off. Place newspaper, cardboard, or scrap towels under the fender prior to spraying.

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