Would rustproofing keep bushings soft?

I may be incorrect but rustproofing agents are often petroleum based which is not good for rubber..

 

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.

 

I think lanolin is good for preserving rubber. Maybe try something like this:
http://www.dymarkindustries.com/product-range/cleaners-lubricants/protech-lanolin-lubricant#:~:text=It%20is%20safe%20to%20use,exposed%20to%20adverse%20environmental%20conditions.

 

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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.

https://www.fluid-film.com/frequently-asked-questions/


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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).

 

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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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.

 

Marine 303 . For anything rubber, including serpentine belts etc , absolutely #1