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Surface Shield vs Fluid Film - The BEST Automotive Undercoating Is....

Busted Beaters

535,348 views

After receiving a ton of comments about Surface Shield on my review video of Fluid Film two years ago, I set out to find the best automotive undercoating on the market today. I tested both of these lanolin-based products over a two year period to see how they would hold up. I was absolutely blown away by the results!

My Fluid Film 4 Year Review:
Fluid Film - Pros, Cons, 4 Year Review

Products Used In This Video:
https://bustedbeaters.com/review/surf...

Social Media:
Web: https://www.bustedbeaters.com/
Instagram: Instagram: bustedbeaters
Facebook: https://www.facebook.com/profile.php?...
TikTok: TikTok: bustedbeaters

Chapters:
0:00 - Why Did I Choose These Two Products?
1:08 - Fluid Film vs Surface Shield
1:46 - Two Years Ago, Creating the Test Plates
4:43 - Test Plate Results
8:21 - Which Product is Better?

20 Comments

@oldcubgarage 2 years ago

I've been fluid filming my truck for 8 years here in MI. So far no rust. It really works.

@rolandm9750 2 years ago

Good video--would have been nice to see a control as well. A third, untreated metal plate, just to see how badly it would rust under the same conditions/time without any product on it at all.

@carlosumobile7439 1 year ago

The experiment was good BUT, you should have used a third plate for control, one without any protection

@danielbosch153 2 years ago

My oil leak from the power steering pump and rear main seal keeps the bottom coated good till the next century. Great video and information for the next owners grandkids.

@james1939-s1c 2 years ago

All these lanolin products are the best antirust solution out there. I have used fluid film for over 15 years now and zero rust in PA.

@NewTestamentDoc 2 years ago

I waited ... and couldn't wait for this!!!! I was so excited you released it. Saw the original video by you and was impressed... even more impressed you took the time to do a long term test AND FOLLOWED THROUGH!!! Thanks...

@je1279 2 years ago

Thank you for taking the time to test these. Very helpful.

@michael46438 2 years ago

I had my 2022 Cadillac coated with fluid film black for underneath and clear for under the hood and all doors. I went back to the installer 1 year later to do a recoat if needed and I was shocked on how well the fluid film was still applied AND there is absolutely no rust anywhere! So glad we went with this product for I see it protecting my car for years to come.

@---skynet--- 2 years ago

Id love to see a test with panels that are rusted and seeing if either is better at slowing the corrosion process

@shiftmotorsportss 2 years ago

I personally went with Surface Shield because I pressure wash the undercarriage. FF washes off easier. Can't go wrong with either one though

@Deplorable.dishmon304 2 years ago

This is the kind of testing we need thank you!

@mrduongtr 1 year ago

Thumbs up for dedication to the experiment!

@timbui5556 2 years ago

This is how tests should be done. Wonderful and informative video. Thank you!

@triggerMB 6 days ago

Great video!!

@cennsa140driver 1 year ago (edited)

Here in upstate NY I find that Fluid Film washes off the underside of the body and all of the suspension parts in a few months of winter driving. FF is fantastic on interior panels like doors and fenders above the wheel well liners. It also is great on box sections in the chassis. Surface Shield really holds up on the under body. The combination of the two work great together.

@samuelrodriguezrivera6856 2 years ago

All videos should be like this! Real world testing and right to the point!

@awesomefish100 2 years ago

Amazing results. Anyone who lives in the rust belt needs to see this.

@93sundance 1 year ago (edited)

I sprayed fluid film on the inside of my bed sides. A year later I can see the fluid creeping out the tie down holes in the bed. To me that thinner fluid can creep better than a thick fluid. I coated my frame last fall with Woolwax, I like it better because it does smell like a barn. Great test BTW.