Help. What will Resurface moonstone??

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DaveHb

Joined
Oct 18, 2021
Messages
106
Does anyone know what Case’s old moonstone was made out of?
A 220 grit diamond diamond cut spyderco ceramic like hot butter and was done in 10 minutes.
On the moonstone I’ve been working off and on for weeks. Work a while get tired and wait a few more days. I’ve already wore a small 320 diamond plate out. 220 won’t hardly touch it either.
Used it for around 20 years. Want to restore its bite.
Best stone I ever had and hate to throw it away.
https://imgur.com/a/c1sYB2i
 
cudgee said:
I'll be interested to find out also. :thumbsup::thumbsup::thumbsup::cool:
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I found it’s supposed to be a type of ceramic, but my goodness takes ages to get anywhere on it.
When it’s clean and flat it I used to use it to hone edge for shaving.
 
I use to use bar keepers scouring powder and a scouring pad and scrubbed the heck out of it. That helped but there are probably better methods to clean it. I tried to clean it after each use also.
 
veltic2 said:
I use to use bar keepers scouring powder and a scouring pad and scrubbed the heck out of it. That helped but there are probably better methods to clean it. I tried to clean it after each use also.
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I used it so many years it ended up getting a bit of dip in center, after wearing out one diamond plate almost there. Also gotten fats in it from being in the field with me too so gonna try soaking in acetone or then blowing off with high pressure see if that’ll help.
That was one good hone they made. Sad they quit making them.
 
The link should have gone to this image but I guess that WorthPoint blocks external linking. Copied/pasted it to Facebook instead so the img url will break in about a month or two but should suffice for the purposes of discussion.

254093631_10225605656276674_7300537586164847489_n.jpg
 
Thanks.
Anyone know what would be best grit to use for final finish after flattening? If I can get it there.

I don’t know what the grit of stone was, I think I read 3or4,000 once.
Case definitely made a good product.
 
DaveHb said:
I used it so many years it ended up getting a bit of dip in center, after wearing out one diamond plate almost there. Also gotten fats in it from being in the field with me too so gonna try soaking in acetone or then blowing off with high pressure see if that’ll help.
That was one good hone they made. Sad they quit making them.
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Might try some Bar Keeper's Friend, in powder form, mixed to a paste with water. Let it 'soak' on the hone for a few minutes, if not longer, then rinse it away. If the hone is clogged with many years' worth of swarf, this would be the easiest way to remove that. The BKF utilizes oxalic acid, which dissolves iron and the oxides thereof. It won't hurt the ceramic, so no worries there. I used this method to clean some ceramic rods that were heavily clogged with years of swarf. I let that 'soak' for quite awhile in a Zip-Loc bag, maybe a couple hours or more. Worked well.

It is possible, maybe likely, that your stone is also glazed from all those years of use. More likely, if some of that use involved sharpening very wear-resistant steels with hard carbide content. The hard carbides in some steels will be harder than the ceramic itself - so the net effect is, the stone will get 'polished' (glazed) by the carbides. That'll render the stone ineffective on most anything, after that happens. If that's the case here, then resurfacing with the loose diamond grit should restore it, as suggested earlier by FortyTwoBlades. :thumbsup:
 
The grit you use for final conditioning will depend on the finish you want the stone to produce, but the finish produced by a stone conditioned with a given grit rating will be many times finer than the grit rating used in the conditioning process, so bear that in mind. You can condition both faces of the stone to different grits and effectively have two levels of cutting aggression from the same stone.
 
FortyTwoBlades said:
The grit you use for final conditioning will depend on the finish you want the stone to produce, but the finish produced by a stone conditioned with a given grit rating will be many times finer than the grit rating used in the conditioning process, so bear that in mind. You can condition both faces of the stone to different grits and effectively have two levels of cutting aggression from the same stone.
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Thank you for that information.
 
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