CRK fluorinated grease ??

C

clockman

Joined
Jan 14, 2009
Messages
3,176
Im ordering an umnunzaan from NGK next week. Is CRK flourinated grease

really that much better on your crk knives ? What other products do you use

with great results ? Ive read comments on the crk forum about crk f.g.!

Thanxs for any advice.
 
I've used Tetra-gun fluoro gease in my Sebbies since they were new.
Very good results.
 
i tried mineral oil.

it does not last long by comparison to a bit thicker substance for lubrication but its not all bad.
 
IIRC the fluorocarbon in most lubricants is referring to P.T.F.E., which is Teflon of one type or another. Any lubricant that contains good amounts of Teflon will work very well. Tetra and CLP Breakfree are very good Teflon containing lubricants. There are many good ones out there. I prefer either Tetra, CLP, Militech, Eezox, or TuffGlide on moving parts of my knives and tools. Mineral oil is used on the food prep blades.
 
I always used miltec 1 with really good results. I did order a syringe of the CRK F Grease and it really does work well, and not just on the Sebbie! Was thinking about getting another run of it when my sebenza comes in.
 
SOLEIL said:
IIRC the fluorocarbon in most lubricants is referring to P.T.F.E., which is Teflon of one type or another. Any lubricant that contains good amounts of Teflon will work very well. Tetra and CLP Breakfree are very good Teflon containing lubricants. There are many good ones out there. I prefer either Tetra, CLP, Militech, Eezox, or TuffGlide on moving parts of my knives and tools. Mineral oil is used on the food prep blades.
Click to expand...

That would not be this. A grease containing Teflon particles would never be called a "fluorinated grease". My best guess is that CRK sells one of the Krytox greases from DuPont.

DuPont makes a series of fluorinated greases which they market under the trade name "Krytox". We sometimes specify their use at work. These materials are made up of molecules that contain fluorine as opposed to a Teflon particle in a standard hydrocarbon grease carrier, which is what SOLEIL described above. The advantages compared to hydrocarbon (oil) based lubricants are:
- very pure - never any contaminants
- insoluble in solvents
- remain active at very high temps
- very high lubricity, higher load carrying capacities than hydrocarbon grease.
- very inert. It does not break down over time.

The stuff is significantly more expensive than a hydrocarbon grease. Like using 6-4 Ti instead of CP Ti, it follows the CRK pattern of using the finest possible materials. Whether it is better for your knife than a regular grease, I could not say. But it is not Teflon-loaded grease.
 
itz hype i have 2 tubes and though is is good,most of the time i reach for a light oil or liquid graphite.......
 
I just use Fluid Film for everything. It is food safe and I figure that if it is good enough for use on the Space Shuttle, it is good enough for me. ;)
 
The CRK grease is good stuff. If you are willing to throw $400 at a knife, $15 isn't bad for a little grease. That was my reasoning, anyway.

The reality is that a little goes a really long way and that $15 will likely last you for years. I've used it on several of my knives and the results are sometimes spectacular. Sometimes, I don't see any improvement at all.

Ironically, I haven't applied it to my own Umnu. (No need yet.)
 
THE PUNISHER said:
Food safe?????????:confused:
Click to expand...

Yup.

FLUID FILM “AS” AEROSOL
DATE PREPARED: 08/06
PRODUCT DATA “AS” # 207 TECHNICAL BULLETIN & MSD SHEET
FOOD GRADE APPROVED NATIONAL STOCK NUMBERS
STOCK # 570 57g CARDED 12/CTN. AEROSOL “AS”:
STOCK # 850 57g 24/CTN. AEROSOL “AS”:
STOCK # 1450 145g 12/CTN. AEROSOL “AS”:
STOCK # 3300 333g 12/CTN. AEROSOL “AS”: 8030-01-387-1131
STOCK # PC354 354 ml 12/CTN. NON-AEROSOL PUMP “NAS”: 8030-01-381-6357
STOCK # 3700 3.5L 4/CTN. NON-AEROSOL BULK “NAS”: 8030-01-386-3871
STOCK # 4300 20L PAIL NON-AEROSOL BULK “NAS”: 8030-01-387-1070
STOCK # 4500 208L DRUM NON-AEROSOL BULK “NAS”:
FLUID FILM Aerosol (AS) and Bulk (NAS) meet and greatly exceed mil spec # C 16173
(Army/Navy), and mil spec # C 81309, C 85054 (Military Aviation). Boeing spec # MB0110-020.
FLUID FILM “AS” & “NAS” LUBRICANTS, PENETRANTS, CORROSION PREVENTION.
Belongs to a family of FLUID FILM products that are Environmentally Friendlier, solvent free, non-toxic,
long lasting, thixotropic liquids that have been used for over fifty (50) years in the highly corrosive marine
environment of ships and offshore drilling rigs. More recently they have been introduced and successfully
utilized in the aerospace, aircraft and automobile industries as well as for home maintenance. Facilities where
they are used include the following: Government facilities, commercial fishing concerns, gas compan ies,
agriculture, salt plants, municipal plants, power plants, manufacturing plants and pulp and paper mills.
FOOD GRADE APPROVED
 
knarfeng.......thanks for the explanation on CRK grease! I always thought it contained teflon particles which is why I did want to use it. Have been using Hi-temp water proof wheel bearing grease, but it still washes out with hot water and dish soap. Gotta get some CRK lube.
 
knarfeng said:
That would not be this. A grease containing Teflon particles would never be called a "fluorinated grease". My best guess is that CRK sells one of the Krytox greases from DuPont.
Click to expand...

Ingredient list, from the literature that came with my tube of CRK Fluorinated Grease:
Perfluoroalkylether
CAS#60164-51-4
PTFE
CAS#9002-84-0

As I understand, perfluoroalkylether is Krytox, and PTFE is Teflon. I suppose this is a Krytox-based grease with a little Teflon mixed in?

ETA: Also, are Krytox or Teflon toxic? With these ingredients, is CRK FG food safe or not?
 
Those are the ingredients listed in the MSDS of at least one grade of Krytox.
http://www.duniway.com/images/pdf/pg/MSDS-KRYTOX-Grease.pdf

Krytox comes in various viscosities, from thin liquid to grease. The lower the viscosity, the less PTFE in the blend.

Krytox is used in the food industry. The dosage required to generate toxic effects is pretty high and you only use a drop on the knife.
 
You must log in or register to reply here.
Back
Top