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Rust Preventative Products Evaluation ... Fluid Film Wins

Discussion in 'Garage' started by dexter, Jan 14, 2020.

  1. dexter

    dexter Senior Member

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  2. CVX20

    CVX20 Senior Member

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    Hmm.
    I think I'll stick with Krown.
     
  3. Halligan

    Halligan Member

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    I fluid filmed my truck for the first time this year. It's a 2015 and I've never done any undercoating until this year. My frame, suspension, and skid plated have has some surface rust but no rot. The underside of the body and bed seems ok at this point. I figured I would Fluid film it every year going forward to extend the life of the under carriage.

    I sprayed the underside myself with a Kellsport spray gun I purchased specifically for this purpose. I bought the fluid film in a gallon container and used maybe a 1/2 gallon. Once I use up this gallon I may try a product called WoolWax which is very similar to Fluid Film but supposedly smells better, or less bad depending how you want to slice it. It's also a little thicker and may resist wash off better.
     
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  4. CVX20

    CVX20 Senior Member

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    What about the inside of your body panels.I worry more about holes in the sheet metal than under carriage damage.Krown applies product to pretty much all exposed metal and the inside of all the panels.
     
  5. Halligan

    Halligan Member

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    The Kellsport gun I purchased come with flexible wands you put on the spray gun to get inside the rocker panels and access to the inside of the boxed frame through holes in the frame. I used a regular aerosol can of fluid film with the red plastic straw to get inside the doors because the holes are so small on the doors. Fluid film has good creep properties and will continue to creep even after applied.

    I'll tell you all now if you decide to do it yourself like I did wear safety glasses and a dust mask to avoid breathing in the over spray.
     
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  6. canadiankodiak700

    canadiankodiak700 Senior Member

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    Lol, I feel sorry for you. Inferior product, and the fact that they drill holes instead of using factory holes. They will drill right beside a factory plug, why? Pull the plug, spray inside, replace plug.... Why do and expose more steel. So stupid. I've had my last 2 vehicles undercoated with fluid film. I was surprised to see the detail that krown never did. Inside all body panels, up behind wheel well liners, firewall, battery terminals, inside frame and bumpers, every latch, underside of hood, even behind the insulation.

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  7. chrisbh17

    chrisbh17 Senior Member

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    Did projectfarm test Krown, NH Oil Undercoating or Corrosion Free RustCure?

    Im pretty sure they would be found to be superior products, vs fluid film. Ive used both and far prefer Corrosion Free.

    No "wet sheep" smell, no need to stir it into oblivion to keep it liquid, does not drip. A little more expensive but I still prefer it.

    Canadian government actually tested a bunch of corrosion protection products to choose a standard for all of their vehicles. CF won. I know they tested Krown as well, not sure what others.
     
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  8. canadiankodiak700

    canadiankodiak700 Senior Member

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    Yes he's tested Krown and nhoil, I know for sure and neither did very well. Nhoil fairs not much better than motor oil.
    Canadian government didn't use fluid film because there hadn't been a dedicated fluid film undercoating company. That's changing now, they are popping up everywhere. We have a great one here in Sudbury Ontario, he's some my fluidfilm undercoating.

    You only get angel from fluidfilm while spraying it, can't notice it in the vehicle or near it. It didn't drip, which I can't say about Krown, that dripped all over our shop floor every night for about a week.



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  9. Halligan

    Halligan Member

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    I will attest that fluid film once applied does not drip on ground. Yes it smell's like Bigfoot's grundle while being applied and you smell it for the first couple of drives as it burns off the exhaust and engine. other than that no long term smell.
     
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  10. js12278

    js12278 Junior Member

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    Kellsport has nozzles and tubes available to reach anywhere on the body of the truck.
    I did my truck last week. I used the Woolwax brand, similar to Fluid Film, and covered the entire undercarriage and "interior" panels that you're concerned with.
    Our trucks have numerous access holes for the rocker panels and frame rails. I used a 360° spray nozzle to get inside these areas.
    I used black on the frame and anything visible. I used the straw color, basically clear, on anything "interior". I used aerosol cans to get inside all the doors and pillar posts.
    I've used these products on my card and lawn equipment for years. It's fantastic stuff.
    First, initial, application might use a full gallon too cover all areas. I keep a gallon of straw on hand for any metal protection I need to do around the house and for touch ups on truck.
    Initial cost, $185. Each year, $49/gallon

    I do recommend waiting a week after spraying before using any sort of undercarriage wash.
    Other product I might use is Cosmoline RP-342.

    Just my $.02



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