Greasegun Cartridges for Polyurethane Bushings

A

Accumulator

Well-known member
Poly bushings can be sensitive; not every lubricant is appropriate for them. I recently used up the last cartridge in my greasegun and need to buy more.

Much as I like ES`s Formula 5, they no longer offer it in greasegun cartridges and there`s no way I`m gonna transfer it from a plastic tub into any of my guns.

Who makes a good, Polyurethane-compatible lube that comes in cartridges?

I have one remaining tube of Griot`s Super Impact Grease, but when I called and asked them about it, their Customer Service Representative...

[WARNING, rant follows...]

[OH...Original Post DELETED..]

Had nothing of use to tell me even after I finally convinced him that it really was a GG product (I was reading off its GG label and this [individual] still argued with me, with statements and vocal inflections that were insulting).

So I don`t know whether it`d be OK to use that or not and I`m not taking any chances.
 
I use super lube synthetic grease. Absolutely polyurethane compatible. I used it on the bmw after installing poly bushes. I am in the process of installing poly bushes on the camaro. I just ordered a new cartridge of the super lube because i ran out. I haven’t had a problem with squeaking, or stiction with it.


funny that you posted this today. I had just ordered som from spohn dot com . Then cam over here to read what was going on. They are located in PA.so should be a quick way to get it for you.
 
Coleroad- Heh heh, from my mouth to God`s ear :D Perfect timing, huh?!? Somehow, Spohn sounds familiar to me too. Thanks!

Maybe if I order the lube I`ll get back on the Crown Vic Project one of these days...at least I`ll have one less excuse :D
 
Sphon is a family owned business with great customer service. They make most of the products they sell. Of course super lube isn’t but still supporting a family business.
 
Mobil 1 and Valvoline both make synthetic greases that work well on polyurethane bushings. I’ll need to look but the cartridges I have now were Mobil 1’s synthetic aircraft rated grease. Back in the day it was well recommended for firearm parts it hangs around in high heat environments and kinda where I stumbled across it ($10-$12/cartridge). It simply seems to never go away on sway bars and control arm bushings. I’ve used it on poly bushings for years without issue. The Mobil 1 version is a little bit sticky, kind of like a marine grease but as long as you’re not applying gobs of it you’ll be good. For the most part a heavy duty, high pressure grease that isn’t petroleum based should do just fine on polyeurothane.
 
I know guys use a marine lithium grease a lot. Personally I would check into that a bit b4 using tho.
 
Dr Oldz said:
I know guys use a marine lithium grease a lot. Personally I would check into that a bit b4 using tho.
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lithium grease is compatible, but it melts at such a very low temperature. It ends up melting and runny out real quick during use. I like lithium grease, but not for this application. The marine stuff does have much better water resistance than regular lithium grease though.
 
Ah, I appreciate all the contributions, more info is always good in my book!

And I kinda figured that Firearms might come up in a discussion of synthetic lubes ;)

GearHead_1- I`d blown off the Mobil1 (and didn`t think of the Valvoline) because they don`t have it in cartridges at my local place.

I do wonder about the thick/"sticky" lubes as I question whether they`d get into the areas where they gotta.
 
Accumulator said:
I do wonder about the thick/"sticky" lubes as I question whether they`d get into the areas where they gotta.
Click to expand...


I hadn’t really thought about before. I could see that maybe being true on ones that aren’t fluted, or knurled on the inside. If they are fluted or knurled I wouldn’t think it would be a issue. Those grease gun really do force a lot of pressure.

it’s a good question. It would be nice to hear from someone who has tested it out.
 
Coleroad- Yeah, one of those situational things; I wouldn`t worry on some things at all, but others are a different story.

No practical way to test it on the bits I`m concerned about either, gonna err on the side of caution.
 
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