mainspring lubrication

[safrole]

anyone have and opinions on a good lubricant for using on a main spring in
a spring powered air rifle

[Geoff]

heavy tar but only a LIGHT coating

[Motorhead]

http://www.gatewaytoairguns.org/GTA/library/All_about_lubricants.doc

[nced]

anyone have and opinions on a good lubricant for using on a main spring in
a spring powered air rifle

I use Dupont Krytox GPL205 or Ultimox 226 (the international version). Works well and won't diesel if it gets pushed in front of the piston seal. Matter of fact, for a couple years now I've been using the Krytox/Ultimox for all my R9 internal and sliding surface lubing, including the piston seal.

[SpiralGroove]

Hey safrole,
As most have said, I'd use Heavy Tar as outlined in PDF witten by CTD "All About Lubricants."

[TC]

anyone have and opinions on a good lubricant for using on a main spring in
a spring powered air rifle

I use Dupont Krytox GPL205 or Ultimox 226 (the international version). Works well and won't diesel if it gets pushed in front of the piston seal. Matter of fact, for a couple years now I've been using the Krytox/Ultimox for all my R9 internal and sliding surface lubing, including the piston seal.

+1
I prefer Ultimox as well. Eliminated an issue I was having with drop in fps when temps dropped 20 to 30 degrees. Also noticed an improvement in fps standard deviations which means more consistent shot groups at longer distances. Just make sure you clean out all the old lubes.

[Kailua]

Heavy tar mentioned will take out twang and vibrations if the internal parts are not well fitted (example spring guide).

[JimL911]

http://www.airrifleheadquarters.com/catalog/item/251484/4810952.htm

[nced]

Heavy tar mentioned will take out twang and vibrations if the internal parts are not well fitted (example spring guide).

That much "tar" also makes the gun "temperature sensitive" as the lube changes viscosity with temp. I ran into this issue many years ago with my molly and tar lubed R9 at an early spring field target match. The sightin was done during snow flurries, however the temp rose 30 degrees during the match. My brother and I were squadded together and we BOTH had a 1" poi shift by the end of the match. Funny thing was that my R9 poi shift was the opposite side of my brother's. At that time I nixed heavy applications of tar and only "painted the coils black" with tar thereafter (no globs or strings).

When I did use "tar" after that episode I used it ONLY to break metal to metal contact, not to dampen spring oscillations! Fitted spring guides are MUCH better at killing "twang" for the long term!

[OleTomCat]

anyone have and opinions on a good lubricant for using on a main spring in
a spring powered air rifle

I use Dupont Krytox GPL205 or Ultimox 226 (the international version). Works well and won't diesel if it gets pushed in front of the piston seal. Matter of fact, for a couple years now I've been using the Krytox/Ultimox for all my R9 internal and sliding surface lubing, including the piston seal.

+1
I prefer Ultimox as well. Eliminated an issue I was having with drop in fps when temps dropped 20 to 30 degrees. Also noticed an improvement in fps standard deviations which means more consistent shot groups at longer distances. Just make sure you clean out all the old lubes.

Add me to the list of those that do not follow the norm....

http://www.ebay.com/itm/281071718178?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

[Motorhead]

BIG DIFFERENCE   offering suggestions to the first time or casual tuner to say an experienced guy willing to try something alternative 

[JR]

I have been using Krytox GPL206, (Krytox is non flammable) since last winter in 2 guns, both have worked just fine for me. Or you can use the old stand by lubes, just don't get carried away because they are flammable.

[safrole]

I saw some people online saying they were using cv joint grease. Has anyone had experience with that?

[mafatone]

I use white lithium grease. Works fine for me.

[JR]

Keep in mind any petroleum type grease is flammable, so it can and will burn causing detonation if it gets in the chamber. High content moly grease is around 80% moly, the Honda  grease is 60%, normal Moly bearing grease is less than 20%. The grease it's self is just the carrier for the Moly powder and can/will burn off if it gets in the chamber. As long as it stays in the spring area it's fine but it always seems to get where it shouldn't.

[safrole]

heavy tar doesn't have any hydrocarbons in it?

[nced]

heavy tar doesn't have any hydrocarbons in it?

LOL....it WILL diesel if it gets in front of the piston seal so I'm guessing that the base is some sort of "diesel prone mix" just like molly paste (molly paste has a mineral oil base).