Undercoating?? - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 11-19-2012, 01:58 PM Thread Starter
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So, I live in Northwestern PA. I've always been a fan of doing some type of undercoating on my vehicles to help resist the winters and road salt. I am curious what others do.

My current strategy, which worked well on my last 2 Tundras:
1.) When new - I take some oil based tractor paint - black - from Tractor Supply and I coat as much as I can underneath. I do this during the first week of ownership.
2.) I use FluidFilm and undercoat frame and sheet metal, and spray inside panels, doors, tailgate, etc. I just bought a sprayer and use tubing to blast where I need and in nooks and crannies.

I guess I may be OCD about rust...but I hate it. My last Tundra had 90,000 miles on it and looked awesome underneath when I traded it. That was through 5 winters. Personally, I also think that when you go to trade or sell, people can appreciate that you probably are taking good care of the vehicle if they look underneath and it looks good.

Curious if/what others do...

2012 F350 CCLB 3.55 ELD with 20s. Lariat package, Chrome, FX4, Clearance Lights, Rapid Heat, Two Tone, Upfitters, HD Alternator, 5th Wheel prep, Truxedo Lo Pro Tonneau. Linex. On board air and shocker XL train horns.

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post #2 of 4 Old 11-19-2012, 02:02 PM
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We always get ours undercoated. My 2010 got coated with like a flat black stuff that always looks dirty and crappy but no rust so I guess I would rather it look dirty than rust. Our new 2012 got under coated and it is more of a gloss and looks really good. Doesn't hold dirt either.

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post #3 of 4 Old 11-19-2012, 03:05 PM
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I hear it is a great product. My 6 cans just came in today.
Would be very durable too.

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post #4 of 4 Old 11-19-2012, 04:51 PM
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I get my vehicles treated by a company called Rust Check. I have been using them since 1996 and have not had any rust issues living in Montreal, Canada and Northeast Ohio (both areas use heavy salt in winter). The coating is a light oil with rust inhibitors. According to Rust Check the light oil penetrates seams and hard to access areas to drive moisture out and keep oxygen from interacting with the steel which causes rust. The drawback with Rust Check is you have to have the vehicle retreated every 12 to 18 months to keep the lifetime warranty.

Overall I have been happy with Rust Check but it is not perfect. I still get surface rust staining on uncoated fasteners on the suspension parts after a few years. This is probably due to suspension part exposure to high velocity water and slush which will power off the rust check. I have started spot treating these parts with a can product from Rust Check called "Coat and Protect." It has the same rust inhibitors but is applied with a thicker oil that holds up better to the undercarrage environment. I have not used the spot coating long enough to see if it will protect the exposed suspension parts better. More info on Rust Check can be found at:

RUST CHECK - Rust Proofing Worldwide

Good luck with your battle against rust.

Turbo Joe
2012 F250 CCSB 4x4
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