Would rustproofing keep bushings soft? | FerrariChat

Would rustproofing keep bushings soft?

Discussion in 'Technical Q&A' started by Massimos360, May 14, 2023.

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  1. Massimos360

    Massimos360 Rookie

    Nov 4, 2022
    Waterloo, Ontario
    Full Name:
    Massimo Z
    Hey everyone,

    I just had a full service in the fall for my 360, new bushings, seals, she’s good to go for a few years. I store it in a heated garage and only put 1500-2000km a year. I realize this will probably dry out my bushings. Has anyone ever considered rust proofing / krown their car, not for rust prevention, but to keep seals and bushings from drying out?
  2. Doctor Mark

    Doctor Mark Formula Junior

    Dec 15, 2005
    Full Name:
    Mark Gronsbell
    I may be incorrect but rustproofing agents are often petroleum based which is not good for rubber..
    05F430F1 likes this.
  3. moysiuan

    moysiuan F1 Rookie
    Silver Subscribed

    Nov 1, 2005
    I have wondered the same thing, I think the compounds like Krown are alleged to be safe on rubbers, but they are I believe petroleum based which is generally a no no for rubber so I would not risk it.

    Putting some silicon plumbing grease, or DOT 5 silicon brake fluid which is rubber seal safe on the exposed bushing surfaces would help reduce oxidation degradation, but will attract dust and grit which might have its own downside. Given the low kms, the silicone fluid wipe onto bushings every once in a while would seem useful.

    Stored in a climate controlled garage in itself will go along way to reducing the bushing wear. But time and compression use are not kind on rubbers generally.
  4. 05F430F1

    05F430F1 F1 Rookie
    Silver Subscribed

    Oct 22, 2005
    Fort Lauderdale, Florida
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  5. 360+Volt=Prius

    360+Volt=Prius Formula 3
    Silver Subscribed

    Sep 1, 2013
    Western Mass
    Full Name:
    Good question. I’m considering using this. I have used it in the past. I have spray gun and flexible snaking hoses for it. I have used it as an undercoating for various cars but must be applied yearly maybe every other. I was going to use it on my suspension parts and flamblocs. And just apply every year with maintenance. Site says may swell rubber, but any emolument , petroleum or not, would do the same to rubber. It’s basically lanolin from sheep wool.


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  6. PaulK

    PaulK F1 Rookie
    Silver Subscribed

    Apr 24, 2004
    Full Name:
    I have Fluid Film on my truck. It is safe for anything that is in contact with petrochemicals. It is NOT safe for things that aren't. There is a guy on Youtube that has done a lot of work on the subject and notes that the rubber weatherstripping underneath his door has gone soft.

    My suspension bushings are making noise now that I have sprayed Fluid Film, but that's about it. Oh and the car retains "dirt" under there.

    I advise you to not put it on your Ferrari. The car is aluminum and really doesn't need it and, bushings are a wear item and you'll eventually replace them anyway (especially on a 360).
    EastMemphis likes this.
  7. 360+Volt=Prius

    360+Volt=Prius Formula 3
    Silver Subscribed

    Sep 1, 2013
    Western Mass
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    Thanks for the input. As far as the dirt I agree. And the frame of the 360 is beautifully coated in a thick rubberized undercoating so I’d worry about softening this and making a goo.
    Even the company says rubber can swell. Perhaps I’ll just spray the new bushings and BJ boots with a little silicone spray lubricant yearly. Any other suggestions?

    I’m not worried about the aluminum parts now I have coated them with cerakote. As far as prior, they surely can get narley, my never driven in rain, in the 12 years I’ve owned it and this is what I found.

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    After bead blasting and cerakote

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  8. JohnMH

    JohnMH Formula 3

    Jan 28, 2004
    Dubai / Bologna
    A 360 frame is alloy, so would undercoating it with Krown make sense?

    I have some rubber protective liquid I use on the seals on my convertible top to keep them sealing, purchased from Pelican Parts if I recall correctly. Seems to work.
  9. mx1

    mx1 Karting
    Rossa Subscribed

    Feb 16, 2022
    Full Name:
    Marine 303 . For anything rubber, including serpentine belts etc , absolutely #1

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