Using coti slurry on another stone (solution to dished coti)

[kayvee]

Hi there,
I recently got a 7 x 1.5 dished vintage coticule. It's about 11 mm on the thick end and 8-9mm in the middle. I feel I'll be wasting a lot of material if I flatten as is and wondering if I could use coticule slurry on another base stone. This way I could use coticule cutting power on another stone until the coti is almost flat. 3mm is a lot of coti - and I wonder if what I'm planning is even practical in my lifetime.

I've seen other references to coticule powder and actually this topic itself (coti on ark). I figured I'd restart the conversation since earlier attempts didn't get anywhere.

 

[Empire straights]

Coticule slurry will work on other stones(I've used it on arks and a couple others) but if it's an old hard one you probably won't get it glad that way. You could flatten it drywith a diamond plate and save the dust, or do it wet and save the slurry and dry it. I've put powder from really fine coticule on canvas strops before really lightly but I can't say one way or another if it did much.

 

[captaincaed]

One other compromise option is to bisect the stone and flatten each half to remove less material overall. It becomes a travel/focused sharpening stone (with a matching slurry stone no less). I probably wouldn't do it if it were my only coti, but it's an option if you have a stable and want another option.

To be fair, 8mm of coti layer is still fairly good, even if you flatten at full length.

Got pics?

 

[JPO]

8 mm is allot of coticule if you just plan on using it for razors. You would need to hone allot of razors to burn through that. I would just lap it flat .

 

[kayvee]

Here are some pics. Pics with yellow side on bottom to show dishing

It appears to be backed by BBW - glued, not natural.

I tried using one side to slurry on another coti - feel it’s fairly hard.

 

[Christian1212]

I'd just lap it. There are plenty of slurry stones out there. I don't see coticule slurry being so special I didn't lap the rest of the stone flat. Might be able to save the coticule dust/slurry as you lap it. Then if you get a stone with a small crack you could try a glue/coti mix to fill it.

 

[Empire straights]

Here are some pics. Pics with yellow side on bottom to show dishing View attachment 1729850View attachment 1729851View attachment 1729852

It appears to be backed by BBW - glued, not natural.

I tried using one side to slurry on another coti - feel it’s fairly hard.

That big red streak in the bbw makes me suspect you got a decent one, you should try that side out too. I don't really like using the glued ones, it seems the really good ones are naturally bound to coticule layer.

 

[Wid]

Here are some pics. Pics with yellow side on bottom to show dishing View attachment 1729850View attachment 1729851View attachment 1729852

It appears to be backed by BBW - glued, not natural.

I tried using one side to slurry on another coti - feel it’s fairly hard.

Plenty of stone left on both sides. Lap it and enjoy

 

[kcb5150]

Just lap it

 

[silverlifter]

Just lap it

 

[David]

I agree, lap it and use it. The average person will never go through that much yellow coticule in a lifetime honing razors.

 

[kcb5150]

Yep... Go for it... Lap it good... I am the nutcase that would drizzle some water thin ca into the seams as well and clean up the sides too so it all looked perfect but I also have no shortage of stone so I can indulge my ocd...

 

[Legion]

Lap it. One option, depending on how you lap it you can try can catch the slurry and dry it out.

BTW, that ain’t dished!

 

[David]

am the nutcase that would drizzle some water thin ca into the seams as well and clean up the sides too so it all looked perfect but I also have no shortage of stone so I can indulge my ocd...

No doubt. I always CA any cracks, gaps, voids before initial lapping.

 

[David]

Lap it. One option, depending on how you lap it you can try can catch the slurry and dry it out.

View attachment 1729934

BTW, that ain’t dished!

View attachment 1729935

Legion gets pulled over by the cops.

“It’s coticule powder officer I swear!”

 

[Legion]

Legion gets pulled over by the cops.

“It’s coticule powder officer I swear!”

What is the going rate for an 8 ball of coticule?

 

[David]

What is the going rate for an 8 ball of coticule?

Depends. What vein is it?

 

[kayvee]

How does one thin CA?

 

[kcb5150]

You can buy it thin like water and in different thickness up from there

 

[Darth Scandalous]

You can thin it with acetone but it's way easier to just buy it in the viscosity you want.