What is fluorinated grease?

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Even easier than posting a thread here, I typed the same question into Google:


Fluorinated grease is a synthetic lubricant that's made from fluorine chemistry and is used when other lubricants aren't effective enough:


CharacteristicsWhite, odorless, inert to many chemicals, and insoluble in water and most solvents
UsesLubricates bearings, chains, slides, and other components made from steel, stainless steel, aluminum, copper, ceramics, polymers, and elastomers
AdvantagesStable to oxidation, resistant to high temperatures, and compatible with many materials
ApplicationsOriginally developed for space exploration, fluorinated grease is also used in the military and aerospace sectors
 
I am guessing they repack Krytox grease of some kind, which is why it is so expensive. A 2 oz tube of the stuff is ~$70.
 
Ilikesharpstuff said:
Even easier than posting a thread here, I typed the same question into Google:


Fluorinated grease is a synthetic lubricant that's made from fluorine chemistry and is used when other lubricants aren't effective enough:


CharacteristicsWhite, odorless, inert to many chemicals, and insoluble in water and most solvents
UsesLubricates bearings, chains, slides, and other components made from steel, stainless steel, aluminum, copper, ceramics, polymers, and elastomers
AdvantagesStable to oxidation, resistant to high temperatures, and compatible with many materials
ApplicationsOriginally developed for space exploration, fluorinated grease is also used in the military and aerospace sectors
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I was hoping someone would say they got a line on a grease just like the CR grease but cheaper and better applicator. :cool:
 
I bought a syringe of it off the big river site, but a quick search came up with many other items than what I bought. See below:


www.all4cycling.com

Finish Line Extreme Fluoro grease - 20 gr

Extreme Fluoro Grease is made with 100% pure DuPont® fluorinated ingredients. Recommended for precision parts, especially bearings (including ceramic). Perfect for those seeking a significant drop in friction and maximum protection against extreme pressures and/or extreme rotational heat. Also...
www.all4cycling.com www.all4cycling.com
 
Bdtry said:
I am guessing they repack Krytox grease of some kind, which is why it is so expensive. A 2 oz tube of the stuff is ~$70.
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Price of this 0.5-ounce Krytox GPL 202 seems to fluctuate but really at this point should average under $30 for a .5oz tube

CRK Fluorinated Grease @ .5 grams = 0.17 ounces
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jjg6319 said:
I bought a syringe of it off the big river site, but a quick search came up with many other items than what I bought. See below:


www.all4cycling.com

Finish Line Extreme Fluoro grease - 20 gr

Extreme Fluoro Grease is made with 100% pure DuPont® fluorinated ingredients. Recommended for precision parts, especially bearings (including ceramic). Perfect for those seeking a significant drop in friction and maximum protection against extreme pressures and/or extreme rotational heat. Also...
www.all4cycling.com www.all4cycling.com
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Finishline is what I bought. If it's good enough for $10,000+ racing bikes, it's good enough for my knives. Funny, I don't think I used it on a knife yet.
 
Bdtry said:
I am guessing they repack Krytox grease of some kind, which is why it is so expensive. A 2 oz tube of the stuff is ~$70.
Click to expand...

If you are referring to CRK's lubricant I can say with confidence it is not Krytox. I'm pretty familiar with the stuff from my mechanical keyboard hobby, for once Krytox doesn't separate, it's more solid while the CRK stuff is runny despite being similar viscosity. It also seems to last a LOT longer between applications, and doesn't dry out or attract gunk. Both my CRKs were manufactured 2-3 months before they got to me, and the grease on both was dry as a desert. I use Krytox 205g0 on my keyboard switches, decided to try it out on my Inkosi one night out of curiosity and it worked out a lot better than I expected, I haven't had to reapply for well over a year, still smooth as the day I cleaned it, and it's one of my most carried and used knives. I HIGHLY recommend it 205g0 for CRKs, a 9 gram tube will last a lifetime. I also apply it on detent balls on frame/liner locks, I prefer slowly rolling the blade out and it makes the action a tad better.
 
Kryme said:
If you are referring to CRK's lubricant I can say with confidence it is not Krytox. I'm pretty familiar with the stuff from my mechanical keyboard hobby, for once Krytox doesn't separate, it's more solid while the CRK stuff is runny despite being similar viscosity. It also seems to last a LOT longer between applications, and doesn't dry out or attract gunk. Both my CRKs were manufactured 2-3 months before they got to me, and the grease on both was dry as a desert. I use Krytox 205g0 on my keyboard switches, decided to try it out on my Inkosi one night out of curiosity and it worked out a lot better than I expected, I haven't had to reapply for well over a year, still smooth as the day I cleaned it, and it's one of my most carried and used knives. I HIGHLY recommend it 205g0 for CRKs, a 9 gram tube will last a lifetime. I also apply it on detent balls on frame/liner locks, I prefer slowly rolling the blade out and it makes the action a tad better.
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Have you tried the Krytox GPL 202? I don't think it is popular with keyboard enthusiasts.

And reading here I found one poster saying he thought it was a near match, and he felt that the 202 was what CRK was repackaging.

The 202 is quite different in viscosity than the 205 you mention.

1728776412541.png
 
oceanrider said:
Have you tried the Krytox GPL 202? I don't think it is popular with keyboard enthusiasts.

And reading here I found one poster saying he thought it was a near match, and he felt that the 202 was what CRK was repackaging.

The 202 is quite different in viscosity than the 205 you mention.

View attachment 2684172
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Yeah on paper it seems far less ideal for keyboards. I wouldn't put it above Chris Reeve to go above and beyond even with the lubricant, but sadly the factory stuff is pretty sub-par. It dries out and it dries out fast, the keyboard I'm typing was lubed with the same Krytox in 2017, as of 6 months ago when I last popped it open it was still good, meanwhile CRK grease dries out in months. If I remember correctly GPL grease has the same chemical structure, they just dilute it with 100, which is basically the carrier for the PTFE. Even the cheap non-branded PTFE grease I bought from our local version of ebay for $10 (200g tub) works better than CRK. Actually, now that I think about it, my first exposure to this forum was looking into alternatives to the CRK grease, it lead me to a really old thread here recommending Finishline PTFE grease, since I'm also into mountain biking I actually already had the stuff on me, and it worked really good too. I mean grease is grease, as long as it's not too thick, doesn't dry or separate it will work for knives. I'm actually considering trying out DT Swiss's special grease, they use that grease to lubricate their freehubs's mechanism. Seems about the right viscosity and it looks just like Nano Oil's red grease, has a really bitter smell to it (I wonder if Nano Oil grease stinks too), but it's made for metal on metal application so fits the bill perfectly.

PS: We could use a "Lubricants" sticky, sorry for derailing this thread lmao.
 
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