[ARCHIVED THREAD] - Greese Question

Posted: 6/14/2005 3:18:31 AM EDT

I read somewhere on the forum that you shouldn't use lithium greese in the assemlby of an AR - e.g. to greese the threads of barrel nut. I'm curious. What is the problem with lithium greese. Why is molly greese better for this application?

Posted: 6/14/2005 4:59:45 AM EDT

[#1]

Lithium grease doesn't hold up to high temperatures.

This is what I use... works like a charm on the barrel nut, cost me $1.99 at the auto parts store, should be enough for building hundreds of rifles, and is good to 1600 deg F.

- AG

Posted: 6/14/2005 4:36:36 PM EDT

[#2]

I thought that there was another explanation for not using lithium grease besides not holding up to the service temperature. Does anyone have any thoughts or recolections?

Posted: 6/14/2005 6:56:06 PM EDT

[#3]

If I remember right the lithium adversely effects the aluminum lower reciver.

Posted: 6/14/2005 8:10:11 PM EDT

[#4]

It's graphite that can have an effect on an aluminum and steel mating.
Avoid anything with graphite in it for installing your barrel nut.

Posted: 6/16/2005 10:41:25 AM EDT

[#5]

The best I could find locally was lithium-moly blend grease (although with all of the chasing around I've done I could have ordered on line and had delivered by now). Is this ok for the barrel nut? Other than graphite (which is in a large number of general purpose bearing greases), are there any other ingredients that I should watch out for? I don't want to crap up my first build.

[ARCHIVED THREAD] - Greese Question

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[ARCHIVED THREAD] - Greese Question

[ARCHIVED THREAD] - Greese Question