i just bought a scope at a yard sale, it has an adjustable objective lens for distances, which moves smoothly, but very stiff. i also have a quite old redfield, that has been in the rings since the late 70's - early 80's, and the magnification (zoom) ring is getting quite stiff. i know there are o-rings in these, and i would like to try a drop of lube on them to see if it would help. but i also know that some lubricants can eat o-rings. so if anyone knows what to use, i would like a recommendation please. thanks!
scope lube?
- Thread starter x_wrench
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wgaynor
Member
I'm interested in this for the same reason. I have an old scope that requires more effort than necessary to adjust the magnification.
anothernewb
Member
I can't see why a good penetrating lube wouldn't work.
rcmodel
Member in memoriam
Because it would eat the seals.
The only thing I could suggest would be a drop of silicone spray lube.
It is safe on auto rubber door seals and such and shouldn't hurt the scope seals.
rc
The only thing I could suggest would be a drop of silicone spray lube.
It is safe on auto rubber door seals and such and shouldn't hurt the scope seals.
rc
anothernewb
Member
you are right, most penetrating oils will likely trash seals over time.
silicone spray should work too.
In addition 0 weight synthetic oil perhaps? might be light enough to flow easy, and hasn't hurt any rubber in my car that I know of yet.
I've ween white lithium in very fine applicators, been using that in cars on rubber parts for years with no issues so far.
perhaps powdered graphite? should work it's way in there well, and not eat the seals either.
silicone spray should work too.
In addition 0 weight synthetic oil perhaps? might be light enough to flow easy, and hasn't hurt any rubber in my car that I know of yet.
I've ween white lithium in very fine applicators, been using that in cars on rubber parts for years with no issues so far.
perhaps powdered graphite? should work it's way in there well, and not eat the seals either.
rodinal220
Member
I use Super-Lube Silicone Dielectric Grease on old scopes on the threads and O-rings.Great for old school aluminum flashlights like Kel-Lite,Bianchi B-lite,Maglites too.
http://www.super-lube.com/
FAQ:
Can Super Lube® be used as an o-ring lubricant?
Yes, Super Lube® Grease is an excellent lubricant that prevents wear between metal, plastic, and rubber parts. It is compatible with Buna, Nitrile, Viton, Neoprene and Silicone rubbers. Super Lube® Silicone Grease is also available for compounds that are not compatible with hydrocarbons.
http://www.super-lube.com/
FAQ:
Can Super Lube® be used as an o-ring lubricant?
Yes, Super Lube® Grease is an excellent lubricant that prevents wear between metal, plastic, and rubber parts. It is compatible with Buna, Nitrile, Viton, Neoprene and Silicone rubbers. Super Lube® Silicone Grease is also available for compounds that are not compatible with hydrocarbons.
Sun Tzu warrior
Member
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If you try the graphite thing, and it gets wet then dries you may have worse problems.
I once bought a old pair of Carl Ziess bino's that were locked up like that for $40.
Some water and a lot of elbow grease later and I traded them for a nice BDL Savage 110LH in 7mm magnum. (which I shot once and traded off, kicked like a gov't mule)
I once bought a old pair of Carl Ziess bino's that were locked up like that for $40.
Some water and a lot of elbow grease later and I traded them for a nice BDL Savage 110LH in 7mm magnum. (which I shot once and traded off, kicked like a gov't mule)
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