What grease for Remington 7600 slide (the O-Ring)

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Potashminer

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I have a Remington 7600 disassembled and many years of grunge, "spray stuff that attracted dirt, then dried", deer hair, seeds and grasses have been cleaned out. The red thread locker on rear end of inner slide tube was still working, so I do not believe the rifle had ever been dis-assembled before. The front end of that inner tube of the slide has an O-ring - seems to be in perfectly suitable condition. I have cleaned out all the old stuff - pictures on U-tube show this is to be lubed with a grease (no mention of even accessing this part in Owner's Manual from Remington). I have read much discussion on Internet about dangers of using petroleum distillate-based greases (like Kleen-Flo White grease) on rubber O-rings. Remington's manual makes multiple references to using Rem-Oil for everything on that rifle - when I checked the MSDS, Rem-Oil is 72% petroleum distillate.

So, assuming that several dozen Internet posters can't all be wrong (Ha!), I am thinking of a trip to town to find some silicone grease - since the rifle will be used in November in Western Manitoba, it will likely be used in some minus 20 or lower temperatures. I would appreciate if any experienced 7600 people can advise on what is the proper grease to use for that O-ring?
 
I know back in the day of working on C.T. trucks with the air brake systems we used a
special o-ring grease.
It sort of resemble vaseline in it's slickyness.
Not sure how vaseline will work in extreme cold temperatures?

I wonder if light oil like 3'n1 would be up to the task?
 
That o-ring is probably not natural rubber, which certainly will be affected by petroleum products. The most common o-ring materials are Buna-N/nitrile and Viton/fluoroelastomer (which is what is used for Remington 1100s and 11-87s). Either of these has good petroleum resistance.

Use a thin film of whatever grease you have handy.
 
I will take your word that the G96 will work fine. An observation from the G96 MSDS - 25% of the contents of the can are the propellant - propane and/or butane. 49% of the contents of the can are petroleum distillates, which works out to about 65% of the "juice" in the can. The balance of the "juice" apparently contains 12% mineral oil, 1.3% DMPS (dimethyl polysuloxane - a silicone), and 21% "propriety blend of non-hazardous oils". I will pick some up next time I get to a store that carries it.

In the mean time, the local NAPA store had some Permatex "silicone formula" brake parts lubricant that followed me home, listed for use as "grease" and as "compatible with all rubber and plastics". It's MSDS is particularly enlightening (not!) - contains over 90% "synthetic based oils (trade secret)", and then no mention of the other 10%!!
 
I agree with Guntech on the G96 as being my "go to" gun juice. started using it 45 yrs ago and have found no reason to change...all that being said I do keep a tube of ulta thin viscosity Reel Grease that used to come in every Outers cleaning kit on the bench (usually using it to lube a spot that I don't want powder residue to penetrate any farther than necessary such as cylinder/axle pins on revolvers). If you think your O-ring requires grease that is what I would use.
 
Well, I do not know if the O-ring actually requires grease. It had quite dirty "grease" looking stuff on it when I disassembled the sliding tubes, especially forward of that o-ring. As mentioned, the Remington Owners Manual makes no mention at all of a user accessing this part - in their section on "lubrication" they appear to reference "Rem Oil" for everything they listed. And, again on U-tube, several images of the tubes going back together with what looks like a grease smeared around that o-ring, but no mention of what was used. I was hoping someone might know what Remington recommends??
 
Well - Its been a while, but you need to determine the material of the o-ring. Buna-n is a rubber derivative, and is vulnerable to petroleum products. Viton is well-suited for petroleum...
 
I decided to send in an inquiry to Remington - got a one-line reply this morning from Remington Customer Services: "Just wipe the O ring clean and re-install. They don't require any lubricant." Seems odd to me, but it is what they said. I have read several Internet comments about these forearms becoming noisy and "rattly" that was resolved by replacing a damaged or missing o-ring - I imagine it is viewed as a "wear" part to be periodically replaced, but no mention of that in the owners manual. Possibly the crap I cleaned off was residue of whatever had been sprayed into the screw opening on the front end of the forearm - I had noticed lots of spray residue in the black plastic recess for that front 1/4"-ish slotted head screw that holds the wooden forearm to the action tube, but not on the screw head itself - just guessing that someone had been removing that end screw and spraying stuff into the tube from the end, and the build up that I removed was the residue...
In the end, I put a small wipe of the Permatex silicone grease around the o-ring, and used a small artist size paint brush to "paint" everything (inside of action, bolt assembly, action bars) with Mobile One 0W20 synthetic oil - probably less than 10 drops used in total. Operates very, very slick now. The trigger assembly got a hosing of Seafoam Deep Creep penetrating oil to flush out dirt and bits of grunge, then thoroughly blown out with compressed air.
 
Potashminer said:
I decided to send in an inquiry to Remington - got a one-line reply this morning from Remington Customer Services: "Just wipe the O ring clean and re-install. They don't require any lubricant."
Click to expand...

That's why I recommended G96 Gun treatment... it is silicon based and helps prevent rust from forming inside out of sight and lightly lubricates the metal ... the O ring is smaller in diameter than the inside of the tube that covers it... it doesn't wear out, it usually cracks and breaks away with age.
 
I use the Swiss Automatenfett on all my guns,rifles,semi or bolt and on handguns as well,contains moly and does not seem to be affected by temperature.
 
ive refrained from using grease on that Oring. a few cold mornings in the goose pit taught me that. if its cold enough it will slow things down enough to cause problems
 
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