Thread: Coticule - Diamond plate

Thanks everybody.

Had some visible scratches on the BBW & Coti side of my stone,
raising a slurry and a few rubbings quickly and easily removed them.

It does make sense that the surface garnets are damaged by using the diamond plate, but it cleans up very nicely with the slurry stones.

Thanks for the thread! I bought a coticule a while ago, lapped it, finished a few razors on it and wondered what the fuss was about coti’s. I don’t have a rubbing stone for it. You think burnishing would have the desired effect? Or better just to get a rubbing stone?

Originally Posted by jfk742

Thanks for the thread! I bought a coticule a while ago, lapped it, finished a few razors on it and wondered what the fuss was about coti’s. I don’t have a rubbing stone for it. You think burnishing would have the desired effect? Or better just to get a rubbing stone?

I think a slurry stone would come in handy, I luckily have a few that came with mine;
but I think other (maybe harder) stones could possibly also work to release the damaged garnets. (although I can't tell you for sure how efficient that would be, but I wouldn't see why not?)


In any case, I cleaned my La Grise with the slurry stone and re-finished my razor on it, this time on oil though; but the edge came out very sharp, but very very smooth.

I wish I had tried running water as previously to make a direct comparison, but I think there is truth to the damaged garnets theory.

The sensation was the same now than when I honed on it before, but I could immediately feel on the strops that this edge was much smoother and the shave confirmed this.

Originally Posted by jfk742

Thanks for the thread! I bought a coticule a while ago, lapped it, finished a few razors on it and wondered what the fuss was about coti’s. I don’t have a rubbing stone for it. You think burnishing would have the desired effect? Or better just to get a rubbing stone?

Personally I would get a rubbing stone.

Slurry contains released abrasives(garnets) and cuts faster. I may be wrong but burnishing the Coti sounds counter productive to me, to get a nice finish /polish I use either dry or under running water and then strop on fabric and then leather.

Stropping makes a huge difference to a coti edge.

Just my opinion based on only a few weeks with my Coti.

Originally Posted by STF

Personally I would get a rubbing stone.

Slurry contains released abrasives(garnets) and cuts faster. I may be wrong but burnishing the Coti sounds counter productive to me, to get a nice finish /polish I use either dry or under running water and then strop on fabric and then leather.

Stropping makes a huge difference to a coti edge.

Just my opinion based on only a few weeks with my Coti.

I wouldn't say that it's counter productive, but given the rate they release slurry it's not going to be the same effect as what you'll see with an Arkansas stone. I only suggested it as a method to get the stone to release any grit from the diamond hone or rough/damaged garnets. Using a slurry stone, small Arkansas stone, or something similar and rubbing it under running water to clear the debris should suffice to clean up the surface and is about the limit of how far I would 'burnish' the stone. I guess 'dressing' it would be a better description? But at this point I'm wandering off into the weeds.

I’ve read reports of diamond plates releasing grit that gets trapped in the stone. That could impact the edge you get.

The suggestion was to use the diamond to true your stone’s surface and then use a rubbing stone to clean it up before honing a razor.

I’ve only ever used a diamond plate to generate slurry on a synthetic stone.

I’ve found rubbing two coticules together to be a preferable way to flatten each. Fortunately, I have two that I could do that with. After that, using the slurry stone that matches each coticule keeps them in shape.

I’ve also got past the compulsion to rehone frequently as I find my coticule edges last quite a while with good stropping and the occasional refresh with chromium oxide or a few weight of the razor passes on a coticule.

Use a well worn Diamond Plate

I shouldn’t have said burnish. I have plenty of well worn plates. I’ll go back and try an older plate.