Slurry Grit?

[singlewedge]

I am trying to suss this problem out.

Let's say you have a C12k and you use a 3.5k for a slurry stone. Would the resulting slurry be coarser or finer than the C12K slurry that would be produced with a Nagura?

[kevint]

Nagura is a softish medium grit natural polishing stone often used as a rubber so much so that it means slurry stone now.

I try to judge by the color of the slurry which stone is cutting which, but even then there could always be some large particles in there when there is large disparity between the two.

if you have a diamond lapping plate- there is your nagura

or were you asking something else?

[0livia]

Guess it would be best to use a slurry stone of the same kind as the hone.

[singlewedge]

So this is what I did and it got a killer edge on a blade.

1k wetstone
4k wet
C12k using the 4k stone as a slurry starter nice deep grey slurry.
C12k with a watery slurry
C12 with water
Pike Swaty with water.

Its like butter baby.

Did using the 4k as a "rubber" create a more aggressive slurry? Is that possible?

[0livia]

It looks just like that.
Probably got some of the 4 k on your 12 k
OR the surface became coarser.

[singlewedge]

Which in doing so reduced the grit of the 12k?

[0livia]

I would guess so.

I don't know what kind your 4 k is, but some of the lower grit stones are softer.
My 12k makes a very light grey slurry btw.

[singlewedge]

4k is an Arkansas.

I'll keep that system up and see if I can get equal results. I have one blade in particular.

[sebell]

Keep in mind that using a coarser but harder
rubbing stone will raise more of the hone's
slurry than its own. Still, I tend to use a slurry
stone of the same type as the hone.

- Scott

[Oldengaerde]

A slight moderation of Singlewedge's original question: could the lapping dust from dry lapping a cupped coticule with 180 grit abrasive mesh (provided the mesh doesn't shed any particles), be used to create an 'instant slurry' equivalent to ordinary slurry from rubbing a coticule with coticule?