Thread: New Coticule is here.

New select grade coticule from SRD, 75x200mm, came today. I know many you have a lot of experience with these, and I'm hoping that you can give me some input on which layer type, etc. you think it is and what characteristics you might expect from this stone. I was surprised by the weight of it.

Looks like my new one. Does the stone feel soft with a slurry? Do you see white specks on the side? If so, it's more of that new Le Verte. It cuts well and doesn't cause microchips, but it likes the slurry real thin. Congrats on the new stone.

Thanks! Yes, it does have white specks on the sides. Don't know on the slurry yet, it's fresh out of the box with those pics, and still has the saw marks on the face. I'll lap it in the morning. Thanks for the info.

Howard

Try it with just water, does metal come out from the razor in water? If so how many strokes, 10, 50,300? This will tell you how much of a polisher your hone is, the longer it takes to see metal in the water usually the more mellow and polished the edge can be. You can do the same in slurry and see how long it takes for your slurry to become dark, that'll tell you how much of a sharpener the hone is.

if your hone makes the slurry darken fast (10-30 strokes to see grey) then becareful as your hone can cause slurry dulling. Fast coticules in slurry will sharpen to a degree in the slurry but then will start to dull the edge after a while, you can deter this by diluting the slurry as you go, when and how often you will need to experiment.

If it is from the vein that I'm using, it doesn't get grey very quickly with a heavy slurry or with water. But it does do slurry dulling with a heavy slurring. The slurry can be very thick with only a couple passes with the slurry stone. I have found that I get better finishing passes with a very, very tiny amount of slurry (very diluted) versus plain water. At this point, if the blade is polished, the stone is like a magnet with a lot of draw on the blade.

This variant of coticule is very unusual, and I'm still trying to figure it out. It definitely is more fragile (softer) than a lot of coticules I have played with.

Have fun with it.

Nice looks and sounds quite similar to my bout, which was adjudged be a La Nouvelle Vein by the good folk over at coticule.be. I'm no expert but it does give lovely edges.

Here is a picture of the top of my coticule. It looks like a texture surface, but it has been lapped and is completely flat.

That definitely looks like the ones on Jarrod's site. I know he calls them "la verte" but I'm sure they're just a different layer altogether since Ardennes starting digging in a different spot, new things are sure to turn up that haven't in recent time. La verte is green/grey, these are pinkish looking, They seem to cut differently as well.

Originally Posted by Disburden

That definitely looks like the ones on Jarrod's site. I know he calls them "la verte" but I'm sure they're just a different layer altogether since Ardennes starting digging in a different spot, new things are sure to turn up that haven't in recent time. La verte is green/grey, these are pinkish looking, They seem to cut differently as well.

Here's 3 more images. I went ahead and lapped it tonight, couldn't stand it. No experience with any other coticule, but this, based on lapping, is softer than the Naniwas. 10 or 12 figure eights and it slurries up like mayonaise. Used a worn DMT 325 that had lapped 6 Naniwas, 4 Nortons, Two barber hones, and number of cleanups but was good for a smooth lap on the coticule. It's a different yellow than what I've seen in other pictures. The dark spots or striations are grayish tan or just dark tan. No pink that I can see. The slurry stone is a totally different stone and has pink and lapped very shiny and you can see that in the 3rd image. At the price, I think these are gold coticules and I almost cried seeing all that stone go down the drain.

Lapped and Wet


Lapped and Damp


Lapped and Damp w/Slurry Stone

Are there any blue lines on the side of the coticule running laterally?