Krytox - The Dog's Dooh-dah's?

[Hsing-ee]

If a chap, and more specifically a chap who like springers, was to purchase a quantity of this miraculous ointment, where might he dab it for best effect?

The same places that he has been dabbing his Molly b'Denim grasse d'voiture?

[Airsporter1st]

Krytox can be used anywhere that you would normally use grease - including metal to metal contact and elastomers.

It is non-flammable so can also be used in front of the piston seal. A small quantity goes a long way.

[TonyL]

A few people have now tried the Finish Line bike grease, Alistair. Apparently very similar, but loads cheaper.

And John, Snooper, concocted his own special formula......"SNOOP GLOOP" .....Best of both worlds...the Finish Line bike grease with extra fine moly mixed in.....luvverly, slippery stuff!!

[vobster]

I use kyrtox oil on the piston seel and either krytox grease or moly grease everywhere else. Just remember, krytox and standard oil/greases should not come in contact with each other. I use oil on the seel as the run-in time is about a million times quicker.

[mand]

What actually happens if Krytox comes in to contact with normal oil or grease?

[PKFusion]

It produces milk!

I had just finished degreasing and Krytoxing my break barrel. Just at the end I put a couple of drops of Krytox oil on the pivot where the barrel hinges. i forgot that it still had oil there. It has been producing a milky substance ever since! Had to think if any lubrication is till being provided.

[Snooper601]

Just to clarify this Guys, the problem with mixing Krytox with other lubes does not apply to adding Moly powder.

The problem occurs mixing the different 'carrier mediums' it's a bit like mixing normal engine oil and Castor oil, like Castrol R, you get a reaction between the two types of oil and a load of sticky gunk that bungs up the oil ways in an engine.

Moly powder is just pure mineral Molybdenem Disulphide, ground into a powder and doesn't react with the carrier in the Krytox or similar grease, it just enhances the load bearing properties.

Cheers

John

[mand]

Got it, thanks.
Thorough degrease needed then.

[PKFusion]

Just for info:
Krytox is a huge range of oils and greases. Most are only available in large quantities and massive prices!

What most of us are referring to is GPL105 which is an oil of medium viscosity. It happens to be the stuff recommended and branded by Volkswagen to lubricate the special rubber seals on the EOS. So it is available in a small dropper bottle. The whole range is something like GPL101 - GPL109; getting increasingly viscous.

They then pack it full of extra fine PTFE to make the greases. GPL201 - GPL209 Again, the only one available in the small tubes is the GPL205 mid viscousity one.

They do have a range with molybdenum disulfide mixed in for high load slow moving application which is the GPL21x range. OK if you want a tube costing £1000 !!!

And many more specialised ones.

If you are as anal as me then look them up on the Dupont website.

[vobster]

Krytox doesnt actually react with other greases.

from the hourses mouth

http://www2.dupont.com/Lubricants/en.../FAQs.html#mix

[severnsider]

Got it, thanks.
Thorough degrease needed then.

Yes. I gave my TX200 a good soak and wipe with acetone, then used GPL205 (obtained in a syringe from *bay). Seems to adhere nicely to all the sliding/pivoting surfaces. It's certainly cleaner than using moly grease. Any other advantages? Perhaps subjective, but I thought the action felt smoother with Krytox. Or was that just wishful thinking?

[Snooper601]

Just for info:
Krytox is a huge range of oils and greases. Most are only available in large quantities and massive prices!

What most of us are referring to is GPL105 which is an oil of medium viscosity. It happens to be the stuff recommended and branded by Volkswagen to lubricate the special rubber seals on the EOS. So it is available in a small dropper bottle. The whole range is something like GPL101 - GPL109; getting increasingly viscous.

They then pack it full of extra fine PTFE to make the greases. GPL201 - GPL209 Again, the only one available in the small tubes is the GPL205 mid viscousity one.

They do have a range with molybdenum disulfide mixed in for high load slow moving application which is the GPL21x range. OK if you want a tube costing £1000 !!!

And many more specialised ones.

If you are as anal as me then look them up on the Dupont website.

That's why I made my own Moly enhanced version. It's a lot cheaper than £1000 a tube.

Cheers

John

[pjinoz]

Hi this is my first post so please be nice! Have been shooting air guns for over 50 years, a research and development scientist for about 40 years and yes you can breakdown krytox in a air gun but there is no doubt in my mind that its breakdown to TOXIC by products is related to compression temperatures. We all know that a drop of oil in the compression cylinder will cause dieselling (and this indicates very high temperatures), and usually the more powerful the air gun then the greater diesel effect. Here in Australia we do not have a 12 fpe limit and any air gun must have a licence (and I am impressed what you folks can do with sub 12 fpe air guns) but now shrouded air guns are illegal (unless it was a shrouded gun licensed up to a year or so ago) so thus my interest in spring guns of high power and quietness (compared to most pcps of commensurate power). I have spent over a year working over a UK built Webley Patriot in .25 cal (yes I know it's big, heavy and hard to cock (I'm 68 years old with arthritis) but it's simple to work on (5 minute tear down) but it "tears apart" Krytox especially noticeable if shot inside or on a wind free verandah. You leave quick! It is much worse than Chlorine gas and that is bad enough for your lungs. Using kryox and Moly with .25 cal H&N FTT I observed and average velocity of 853 f/s; switching to all Moly lube 858 f/s (and smoke or fumes unlike krytox). I'll stick to moly especially since my mv's are now above 900 f/s with this pellet. Yes the velocity data is correct as both my Oehler and CED Mk2 agree and yes I can hit the broadside of a barn. So, is kytox for you? If you cannot notice even the slightest smell (inside/low airflow) then stick with it.

[Weasle]

That's why I made my own Moly enhanced version. It's a lot cheaper than £1000 a tube.

Cheers

John

John - what Finish Line bike grease do you recommend and for what location - I've got an 80 ready to go back together and our local Bike shop stocks the whole range of Finish Line bike products.

Cheers

Steve

[Snooper601]

John - what Finish Line bike grease do you recommend and for what location - I've got an 80 ready to go back together and our local Bike shop stocks the whole range of Finish Line bike products.

Cheers

Steve

It's the ptfe one, I bought a large bucket.
I use it on the piston and seal but use ordinary hd moly on the spring and guide and sometimes red rubber grease on the spring to sap a little power if required.

The ptfe mix is great for the piston as it doesn't diesel if you get a little in front of the seal.

Cheers

John