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Thread: leaf spring paint/lube

  1. #1

    Join Date
    May 2019
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    Default leaf spring paint/lube

    Soon I will be doing something to my leaf spring. I guess I will take the leaves apart- strip the old paint--
    figure out what to paint with and think about lube.

    I saw on the web there is a product called "slip plate" which is a paintable graphite dry lube. It is carried in some kind of fast evaporating carrier. Dries in such a way as it doesn't come off like grease does. Completely dry when done so it doent attract dirt-water grime...
    Anyone tried that product ?

    Other car and heavy truck guys use an adhesive backed thin UHMW tape which allows the springs to slide
    across each other. As this would be visible - and a discreet extra "part" added -- the AI might not like it.

    Im thinking of painting the leaves and using the slip plate on them then re-assy...

    Would an old fashioned zinc chromate be good for the base paint ? Powder coat ? Epoxy ?

    Ideas/comments ?

    Tim

  2. #2

    Join Date
    May 2011
    Location
    Weatherford, TX
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    Default Re: leaf spring paint/lube

    I painted mine with the same color coat as the fabric (Stewart Systems). I figured it would be flexible enough to stay with the spring as it flexes. I expect it to rub off between the leafs as they slide across each other, but that's OK with me - figure it will also 'rub off' any rust that might want to form. I really don't think any squeaks will bother me as I just expect to taxi to/from the runway,,, not planning any long cross country taxiing trips. If squeaks do start to bother me I will look into that "slip plate" - sounds good, and my IA is a push over.

    I would think powder coating would be somewhat brittle for a spring.
    Last edited by Paul Watts; 04-25-2020 at 09:07 AM.

  3. #3
    Gilbert Pierce's Avatar
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    Nov 2007
    Location
    Germantown, Tennessee 01TN
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    Default Re: leaf spring paint/lube

    Quote Originally Posted by violinmaker View Post
    Soon I will be doing something to my leaf spring. I guess I will take the leaves apart- strip the old paint--
    figure out what to paint with and think about lube.

    I saw on the web there is a product called "slip plate" which is a paintable graphite dry lube. It is carried in some kind of fast evaporating carrier. Dries in such a way as it doesn't come off like grease does. Completely dry when done so it doent attract dirt-water grime...
    Anyone tried that product ?

    Other car and heavy truck guys use an adhesive backed thin UHMW tape which allows the springs to slide
    across each other. As this would be visible - and a discreet extra "part" added -- the AI might not like it.

    Im thinking of painting the leaves and using the slip plate on them then re-assy...…

    Would an old fashioned zinc chromate be good for the base paint ? Powder coat ? Epoxy ?

    Ideas/comments ?

    Tim
    Overkill. Flat black rattle can Rustoleum does the job.

    I use Slip Plate on my 31 Ford pickup springs so they won’t squeak. If the TW spring squeaks I can’t hear it.

  4. #4

    Join Date
    May 2019
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    Default Re: leaf spring paint/lube

    I wasn't thinking about squeaking so much as allowing free movement--- and maybe it not rusting in the interfaces
    because the paint was rubbed off.....

    If I have occasion to have the leaves off my f-350---- I will definitely spray them with this stuff---

    I grew up restoring cars--- so sometimes I overkill certain things by habit.

    Thanks for the thoughts
    Tim

  5. #5
    tnowak's Avatar
    Join Date
    Dec 2007
    Location
    Hampshire, England
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    719
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    Default Re: leaf spring paint/lube

    I just sprayed my leaf springs with chromate primer, followed by grey primer and gloss black.
    I found some graphite loaded grease at work so put a thin smear of that on the leafs that touch.
    Works fine and you only need to wipe off the grease (once) that oozes out of the sides.
    TonyN

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