Thread: Coticule after 12K?

Originally Posted by life2short1971

Anybody try a diamond slurry on their coti?

If you mean generating slurry on your coti by rubbing it on a DMT plate, yes I've done that and it works very well. You get lots of slurry. Of course the coti slurry stone works very well too.

No I have a bottle of .25 spray and I just thought I would see what happened with a spritz on when finishing.

After reading the OP, I don't think you can improve a 12k edge with any Coticule. I have many...If it's honed properly that is..I'd venture and say, that if your edge is better or smoother after a 12k to a Coti, then it wasn't honed right to begin with.
Edges off a C12k or a Nani 12k are great, They're smooth...

One way I go backwards that actually works is from Diamond paste, say .50 or even .25 to Crox. For me, the edge off diamond paste is just a tad keen. The crox kind of mellows it out...

Originally Posted by life2short1971

No I have a bottle of .25 spray and I just thought I would see what happened with a spritz on when finishing.

Coticules are non porous, That should work...? I never tried it, but as long as the spray stays on there...I'm not sure what would happen when the garnet's get released and mix with the diamond spray...

Apparantly, it's bad to do that...So, don't do that..

What results did you get....?

FWIW, Diamonds rate a 10 on the hardness scale...Garnet's rate 7-7.5
Still pretty hard stuff....

Originally Posted by Bayamontate

Call me crazy but I'm digging the edges I'm getting with 25 laps on my C12K after the Naniwa 12K.

Well, The Nani is synthetic, and the C12k is a natural...Your partial to Naturals...Nothing wrong with that....The C12k is a great stone, probably one of the most overlooked stones in eveyone's collection...It's just slow, but gives great edges...Especially with a slurry, since they are naturals, there are variances from stone to stone....Some are better finishers than others....

What's going to happen is as the blade rides over the spray and the hone the much harder diamond will abrade the coticule and cause more garnet to be released along with the rock it's embedded in and the diamond will throw off the honing ability of the garnet which will be pulverized to dust by the diamond.

I got a very keen edge with no scratches.It had a velvety look under a Veho 400 but was shiny to the naked eye.I used a les Latneuse on the faster side.

Originally Posted by thebigspendur

Everything is relative and the more hones you have the more relative it becomes.

I remember a time when the Coticule was the cat's meow around here and it was considered in grit similar to an 8K maybe a tad higher but performed closer to a 10K.

For a long time after the Norton 8K I had a Kitayama as my finisher and then I got the Coticule which gave a huge improvement in sharpness and smoothness and then I got an Escher which bested the Coticule and then came the Japanese natural which under certain circumstances bested the other two.

I give up.

Originally Posted by Bruce

I am in great need of filling in the air space between my mental grits.

We've got Chinese 12K and everybody knows thats a 12,000 grit stone, right? And then we've got those crazy coticules which nobody knows the grit of, but guesses they may be somewhere between 8-10 K's and, oh, they may be good finishers or they may be just OK, but everyone can shave after a Norton 8K.

And huzzah, huzzah we have the J-nats: those mysterious and powerfully effective hones that do it all in exemplary fashion, if they are marrried to the right nagura. I didn't even know they were bethothed. Apparently they have the right K's which means that their offspring will be stones to behold, but in the meanwhile their grits remain a total conundrum. Were that other-undums the mystery might be so much easier to understand.

I'm so confused that I believe I'll try waltzing with novaculite tonight to see if that gives me any revelations or epiphanies. Or maybe some Special K for breakfast will plumb these depths.