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Anybody have experience with this? Heard it was even better than CrOx - partially b/c .25 micron abrasive particle size vs. .50 micron size in the CrOx. Does it behave very similarly to CrOx? Also best as a finisher after sharpening (honing or pastes?)? Can it be used as a refresher? Thanks everyone.
I've never used it personally, but I have a razor finished on it by Glen. It is really really nice
:)
I actually really like this stuff and keep a poly webbed strop pasted with it. I would not say I like it better than Chromium Oxide, but it works just as good in my opinion. I actually have used it after Chrom Ox with good results too. It will work for a refresh as well.
Have fun,
Lynn
Hmm - so is it six in one, half dozen in the other? Could you tell the difference in a blind test? (Just got me thinking - could you shave blind? Blind with that cigar still in your mouth? I could imagine some fun, and dangerous contests and hilarious pictures and videos....) Maybe certain razors like one or the other?
Double checking....Quote:
Originally Posted by Mijbil
Name: Cesium
Symbol: Cs
----
Name: Cerium
Symbol: Ce
Cerium Oxide is the fine abrasive used
in things like 3M film (0.3 micron).
CeO is used as polishing compound for optics, such as lenses mirrors etc.
The smallest I have seen is 30nm diameter.
Here they rate is as 200-10 nm
Cerium
There are differences in this stuff the same as there are differences in CrOx... But using both of these in the 99%+ pure powder forms yes there is a huge difference in feel on the leather strops.... the CeOx is way smoother then the CrOx again there are many variables on pastes so YMMV...
Edit: If you are asking if you could tell the difference in a blind shave test ??? I doubt it, but if you are asking can you feel the difference on the strop the answer is yes....
It might be interesting to try this in combination with a Japanese natural (preferably suita).
Why suita?Quote:
Originally Posted by Pyment
Whoops on the element - I stand corrected. Cerium it us.
ALso, +1 on the last reply: why, in particular, do you suggest a japanese natural/suita?
Cerium Oxide is also used in lapidary work where it is considered a high end polisher for that final polish. I used to use it by the pound in my college days in the Geology Lab.
I use Cerium Oxide on denim wrapped tightly around a 1/2" piece of balsawood. It does a nice job but don't breathe it.
I have a few pounds left over from my lapidary stock. For some reason, it puts a polish on certain materials (like obsidian) that diamonds always leave hazy. I wish I understood the science behind it.Quote:
Originally Posted by thebigspendur
Its a matter of the particle size of the stuff and the relative hardness of the polishing medium compared to the stuff you are trying to polish. That's why many lapidary polishes are mixtures of different materials in an attempt to give the best of many worlds. You can use (for example) Chrome Ox to polish material like Quartz and things of that approximate hardness but as you start dealing with harder material it doesn't work so good.
Because of the Su. Some of the Cerium would get caught in the su and could give you the honing power of the suita with the fineness of the cerium.Quote:
Originally Posted by mainaman
Are you thinking that this will improve the slurry?Quote:
Originally Posted by Pyment
It almost makes sense to have a baby jar with a wet H2O paste
of CeOx or even CrOx. A touch of the finger would pick up
some and you might have an instant but very fine slurry.
By adding a drop of surfactant to the paste it might also
help clean the hone.
And CeOx is clean (unlike CrOx...) I guess if I had some handy I would try it.
Wait, I might... that very fine white polishing compound for ceramic cook
tops....has something white in it that polishes glass.
Very Intereresting - the "Su'? Why wouldnt that work with other fine hones that rely on a slurry - coticules, barber hones, synthetic waterstones, etc? Or, even if you couldnt get the exact same effect, what would be the effect of doing so with other hones like that?Quote:
Originally Posted by Pyment
The su are kind of cool because the particles stay in them until floated out by water (if I understand correctly). So, with the suita the effect might be prolonged.
As for Japanese naturals from the Kyoto region in general, part of their fineness relies on the natural abrasive particles being ground down in the honing process (these are called chert and, I believe, come from the remains of radiolaria). I would think using the cerium oxide would hasten the breakdown into finer particles. Making them become finer and faster than normal.
One could use the cerium oxide with any hone and I think Sham has a video where he uses Chro-ox that way. I just think that, because of the way the natural Japanese hones work, it might be particularly interesting with them.
People use Carborundum too, but CeO should be finer and might work better.
YouTube - knife sharpening using Maruka finishing stone with SiC slurry ( #30,000 green carborumdum)
Any type of contamination on Jnats is pretty much degrading the quality of the hone. There is a good reason why Jnats don't have a grit rating system and that is because the don't cut in the same fashion as other hones.
If you were to take a piece of butter and run a fork through it, that would pretty much be the same scratch pattern as any of the synthetics and most any other hone that isn't a Jnat finisher. If you ran a micro plane over the same butter at some point you would have something that looks flat, that is the Jnat effect so pretty much anything else after the Jnat is probably making your edge less sharp and any contamination would have a negative impact on the edge. So keep Jnats clean.
Assuming you finish with an Asagi or similar after your Suita, what would you see as the advantage of doing this or are you using a super fine Suita as a finisher ?Quote:
Originally Posted by Pyment
It was more of a "this is interesting to think about" than a "I need to try this" kind of thought. Currently I am using (Okudo?) Shiro suita to Nakayama Namito to Nakayama Asagi after my Aoto or Ohira Tomae.
I see.
I use buffing compounds on Scotchbrite wheels for resto work rather than just the wheels alone. Seems a nicer polish. Maybe similar thinking.
LOL. I use an almost identical finishing progression except my Suita is a Shobudani stone.
my suita is either Shoubudani or Okudo. The seller was mostly sure it was Okudo.
It is an amazing hone.