Should Aluminum F150s be Undercoated?

Should Aluminum F150s be Undercoated?

This is a discussion on Should Aluminum F150s be Undercoated? within the F150 Ecoboost News forums, part of the Ford F150 Ecoboost category; Much has been said about the 2015 and 2016 Ford F-150s being made of aluminum. Parts of the truck are still high grade steel. Ford ...

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Thread: Should Aluminum F150s be Undercoated?

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    Press Pass TorqueNews's Avatar

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    Should Aluminum F150s be Undercoated?

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    Much has been said about the 2015 and 2016 Ford F-150s being made of aluminum. Parts of the truck are still high grade steel. Ford has done extensive testing on the new trucks but questions like this one from a Canadian truck fan remain, “Did you get your new truck undercoated, not sure if I should with the body being aluminum? “ The next question is “What is the best undercoating to use?” The following is reprinted from TorqueNews.com and written by Mary Conway, discussing undercoating aluminum Ford F-150.




    There are at least a dozen fan forums set up to address this issue and hundreds of different answers. The questions come from all over the U.S. and Canada. J.B. asks “I just purchased a 16 SuperCrew about a week ago. I live in Ohio where salt is used on the roads during the winter and I'm curious if I should get the truck undercoated. I've heard the trucks come treated from the factory, but I don't know if that's accurate. Is it worth getting undercoated? I really don't want to see rust underneath in two years.”


    A truck owner named Rick from south east Michigan sounds like his information is direct from Ford. Rick says, “For corrosion protection, the entire frame is immersed in an e-coat solution and an electric charge is applied. The result is a durable protective shell that bonds with the steel and inhibits rust, even in hidden areas. Ford engineers went to great lengths to inhibit galvanic corrosion, which can occur when steel (and some other metals) comes into contact with aluminum along with moisture. Specially coated bolts, clips and isolated body mounts prevent steel and aluminum from coming into contact.”


    Rick adds, “Extensive corrosion testing was also done to ensure the tough adhesives used in the body can stand up to the elements and extreme temperature.”
    Aluminum doesn’t rust but it can corrode, getting white spots on it. Steel obviously can rust and often does regardless of the corrosion protection, especially is high-salt areas.

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    Gold Supporting Member usmarine475's Avatar
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    Okay so is that a yes or no? Haha

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    2016 Ford F150 XLT (FX4/ Sport) 2.7 ecoboost

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    Eco-Beast Sherman's Avatar

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    I would for the road noise mitigation anyways. corrosion resistance is a bonus.

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    Gold Supporting Member eracer's Avatar
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    2016 XLT, 3.5L/3.55EL, 4x4 Sport SuperCrew, Shadow Black, 145" WB, 302A, 7000 GVWR Tow Package, Boss Trail Suspension Pack 1 (Icon UCA,) Borla S-type Catback, Full Race Intercooler w/TurboSmart BOV, Full Race Throttle Body Spacer, Reische 170° Thermostat, GT Turbo Upgrade, MPT 93 PR-X Tune, SPD Performance Flange Kit, Full Race CAI, UPR Catch Can, Anzo LED Switchback Projector Headlights, Recon LED Taillights, Rigid D2 Fog/Driving Lights, Raxiom Integrated Multi-Gauge, BakFlip F1, Nitto Ridge Runner LT285/65R18, Fuel Anza D558. Dyno: 435 RWHP/ 456 ft.lb.

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    Eco-Beast WooBoost's Avatar

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    Nice to finally get an answer that the metal to aluminum has been addressed. That was a question I had before truck cam out.

    what this guy said is good: A 2016 F-150 owner who goes by FoxTrot says, “I just ordered a Gallon of "Fluid Film Undercoating" and the equipment to spray it. This stuff never dries so it won't trap moisture. It does need to be re-applied ever year on exposed areas. And it creeps into the seams, nooks and crannies.”

    That's how I do it. with a spray gun. Get inside the frame and all.

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    Ecoboost Jr Member R code's Avatar

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    I had mine me under coated when I bought it.
    2016 XLT oxford white super crew 3.5 302a with max tow with 3.55 gears.

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    Ecoboost Veteran Jerryr's Avatar

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    Quote Originally Posted by Sherman View Post
    I would for the road noise mitigation anyways. corrosion resistance is a bonus.
    The only time I had a car undercoated it created rust!!! The shop sprayed undercoating where it had clogged weep holes on the door rocker panels. A few years later I noticed the rocker panels were blistering. I touched the blister and my finger went through the panel and water poured out. They had rusted out from inside out. The repair estimate was $1,000. I found out my lifetime warranty only reembursed me up to the original cost of the product application.

    With my experience with aluminum aircraft i like thin film preventive like Corrosion-X or Boeshied T-9. They both will not clog weep holes, will fill lap joints and actually will stop corrosion if it has already started.
    2016 Magnetic Gray, XLT, 2WD, Crew Cab, Sport Appearance Package, 3.5 EcoBoost, 3.55 gears, 53C Max Trailer Tow Package, Navigation, AirLift RideControl Air Bags w/Wireless Air Compressor, Rugged Cover Tri-Fold Tonneau Cover, Ford Bedrug Bedliner, DeeZee tailgate Assist Shock; towing a Grand Design 2800BH 32 foot Travel Trailer


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    Ecoboost Jr Member 16ecoboost's Avatar

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    I had them spray my rear fender wells when they did the line-x on my bed. I think it looks better not seeing the body color under there as well.

    2016 -150 4x4 Lariat supercrew, 3.5 ecoboost, white platinum metallic with caribou accent, 20" machined aluminum wheels w/ silver pockets, 36 gal tank, 501A equipment group, Ford tri-fold tonneau cover, spay-in bed liner and rear wheel wells, Husky under seat storage box, 20% tint
    2007 GT500 vert, 785 rwhp, 703 rwtq, built by BA Performance, tuned by Lund Racing

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    Eco-Beast noodles's Avatar

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    This one should've been rust proofed. 2015 Platinum premature rust.
    13 SuperCrew Ruby Red 302A, 4x4 6.5 box, 3.31, Roush 22's. Twin catch cans, "leveled" with Bilsteins (-2 front, -3 rear), AirLift, SCT. Other's may have displacement on demand... I have an endless supply of torque at my right foot's demand.


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    Eco-Beast WooBoost's Avatar

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    Quote Originally Posted by noodles View Post
    This one should've been rust proofed. 2015 Platinum premature rust.
    Those are metal sections that rust naturally and not the aluminum body itself though. I am more interested in aluminum long term.

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