Request suggestions to save a dished coticule

[vgeorge]

Just wanted to close the loop about this. Few days ago, after I finished a work-related project, I was burnt-out and was looking for something to relax with. I picked up the stone (the dished one, referred above) and lapped it flat, as many people here suggested. Allow me to thank everybody again for cheerfully giving me their suggestions.

So, the surfaces are flat, but not parallel to each other (deliberately so, less lapping and less loss of creamy side). Lovely stone, nonetheless. It has red speckles, holograms, tiny manganese lines (not sure if they are, but I think so), etc.

I collected the cream-side's lapping liquid. (I lapped it partially under-water in a little tub.) Couple of observations might interest some of you.

I first tried to use the paper funnel thingie (the drip coffee funnel), but nothing could be strained out - that is, nothing remained on the paper! Everything just dripped through. I then let the lapping liquid settle, and decanted off the "whey". I have to tell you, there was also a floating creamy membrane on top of the liquid (as well as stuff that settled to the bottom). I have preserved the semi-solids in a small bottle.

I have no idea about its chemistry. I'd venture that density of the creamy side material is not very high, because it took very long to settle down. It has a lighter than water component (we know this from the floating membrane). Since it could not be filtered with coffee filter, largest particle size is smaller than the interstitial space in paper (whatever that is).

I am not sure if I will use the preserved remains from the lapping. There is something rejuvenating about making a slurry each time. But ..., we will see.

Thank you all. :love:

 

[wdwrx]

God, I hope it's not toxic! :w00t: I've been brushing my teeth with it!

(joking! )
I've never bothered to strain any of my slurry. Interesting results.I'm surprised that the filter didn't clean it right out.

 

[Emmanuel]

Just wanted to close the loop about this. Few days ago, after I finished a work-related project, I was burnt-out and was looking for something to relax with. I picked up the stone (the dished one, referred above) and lapped it flat, as many people here suggested. Allow me to thank everybody again for cheerfully giving me their suggestions.

So, the surfaces are flat, but not parallel to each other (deliberately so, less lapping and less loss of creamy side). Lovely stone, nonetheless. It has red speckles, holograms, tiny manganese lines (not sure if they are, but I think so), etc.

I collected the cream-side's lapping liquid. (I lapped it partially under-water in a little tub.) Couple of observations might interest some of you.

I first tried to use the paper funnel thingie (the drip coffee funnel), but nothing could be strained out - that is, nothing remained on the paper! Everything just dripped through. I then let the lapping liquid settle, and decanted off the "whey". I have to tell you, there was also a floating creamy membrane on top of the liquid (as well as stuff that settled to the bottom). I have preserved the semi-solids in a small bottle.

I have no idea about its chemistry. I'd venture that density of the creamy side material is not very high, because it took very long to settle down. It has a lighter than water component (we know this from the floating membrane). Since it could not be filtered with coffee filter, largest particle size is smaller than the interstitial space in paper (whatever that is).

I am not sure if I will use the preserved remains from the lapping. There is something rejuvenating about making a slurry each time. But ..., we will see.

Thank you all. :love:

Ah my friend George. I never read this post.Even is to late now,that is a knowledge for the
future:if you mixes a quantity of coticule powder a little bit plaster and the a quantity of egg yolk you have a paste that you could refill the cavity without affecting the hone capability.
After time elapsed the paste becomes hard as coticule.

Sorry
Best regards
Emmanuel

 

[vgeorge]

God, I hope it's not toxic! :w00t: I've been brushing my teeth with it!
(joking! )
...

Chris, I think your bone-marrow is Coticule slurry now ... :

... knowledge for the future:if you mixes a quantity of coticule powder a little bit plaster and the a quantity of egg yolk you have a paste that you could refill the cavity without affecting the hone capability.
After time elapsed the paste becomes hard as coticule.

That is very useful information, Emmanuel. I would never have guessed the egg yolk trick! Thank you, my friend.

Best regards,
George

 

[wdwrx]

Indeed it is an incrediable idea.:thumbup: And it makes perfect sense. tempura paint is also made from eggs, less the slurry. And lasts for hundreds of years, IIRC. How waterproof is it Emmanual? Will that type of repair stand up to the dampness of honing? Is it removable?

George and I were recently talking about semi-permantantly filling a void; this seems like a perfect solution.

 

[vgeorge]

My thoughts exactly - I was just about to write you a note.

Another thought too crossed my mind. Will the egg yolk allow bacteria to grow inside crevices?

 

[dnullify]

I'm glad you got that stone nice and usable.

I wonder how it ever got that dished in the first place. you'd think that at some point it would get dished to the point where it isn't usable, and no further cause you can't continue to use it until it's flattened.

 

[Bart]

Emmanuel, your resourcefulness is just amazing.:love:

Does their go water in this recipe? Could you be more specific about ratio of ingredients?

Thank you,
Bart

 

[Emmanuel]

George,Chris and Bart. This knowledge coming from ancient Hellenes. Knossos Palace in Crete island constructed 3500 thousands years ago and displays colors and structural materials of which the binder is egg-yolk. You can see in the pictures ,how seem to day ,even a large amount of time elapsed..

Yolk is a awesome binder. If lasts ,or if keeps bacteria and if becomes cracked ,this confirmed by the post photos , and not forget applied 3500 thousands years ago.So far any time I mixed any powder with yolk I took a hard ,solid and waterproof none pores material. To day the most of hagiographer monks in Athos ( Holy mount Greece) use yolk with different oxides powder ,like crox ( for dip green) for their hagiographies. Perhaps Bart has in the back of his head to rebuild a coticule by the surplus powder of stones cutting .However has a good access to the company.
Now ,Bart, concerning the dosage ratio. I suggest 1) A quantity of coticule powder plus 15% by volume artistic plaster ,plus yolk until the paste is soft and workable depending of the usage purposes. I perform this method to refill some cracks on my vintage BBW and can assure that so far after twelve years remains solid and almost invisible without affection on the honed blade.
Your friend
Emmanuel

 

[vgeorge]

Thank you Emmanuel! For the lovely pictures! And for the recipe! So, simple, so good! Artist Plaster is same as Plaster of Paris, right?

Thanks, my friend. :thumbup:

 

[Emmanuel]

Yes is Plaster of Paris.However Plaster is a kind of chalk or in greek gypsum. Gypsum as Bart confirmed in a previous post ,doesn't contains harder particles than steel so if the surface cuts ,that comes from coticule powder .
Best regards
Emmanuel

 

[vgeorge]

OK, here is some additional information.

Notwithstanding thousands of years of history about egg yolks' use as a binder, being mildly paranoid and a slight hypochondriac, I asked a medical professional about the danger of bacterial growth. I was told not to worry about it. Barring one or two exceptions, it will be difficult or impossible for most types of bacteria to survive at room temperature for long term in spite of nutrient rich environment.

Denny's cats should be safe too, unless they lick it before everything is dried and hardened. Bacteria thrive at around body temperature.

DISCLAIMER: Please do not take this as the last word.

 

[Emmanuel]

Eh George ,once the mass hardened doesn't exist food for bacteria to thrive is easily understandably my friend.
Best regards
Emmanuel

 

[Emmanuel]

Emmanuel, your resourcefulness is just amazing.:love:

Does their go water in this recipe? Could you be more specific about ratio of ingredients?

Thank you,
Bart

Bart ,water isn't binder although i didn't try it. You can try it but i am afraid that you'll spend cotpowder which is valuable.
Best regards
Emmanuel

 

[vgeorge]

Emmanuel,

May I ask you this? I need to fill a not-too-small, but not-too-big, crevice between yellow and blue in a vintage stone.

Rest of the old glue seems to be holding quite well at the moment (stone came in contact with water quite a bit while I was cleaning and lapping it). Therefore, I would prefer not to force it apart.

I would also think it would not be a good idea to use a permanent glue (like epoxy) in the crevice between yellow and blue.

I was thinking of using your suggestion of yolk + coti powder + plaster for the crevice, then I remembered that it is for the surface.

For an interstitial crevice, for a semi-permanent filler+glue, do you suggest: (a) the same, or (b) just yolk + plaster (without coti powder), or (c) something else?

Will the heat from the plaster do any damage?

Thanks, Emmanuel, and whoever has comments on this.

 

[Emmanuel]

If never edge will contact this surface you can use a epoxied adhesive ,or if you like something
strong and natural yolk +cement .Quantities :until a workable paste.
Best regards
Emmanuel

 

[vgeorge]

Thanks, Emmanuel. Do you mean construction cement, used in concrete, and also called "Portland Cement"?

I am looking for something that is not overly strong, given rest of it is most likely vintage glue. It should also be a "filler". Razor edge will NOT come in contact because this will be between the cream and blue layers.

 

[Emmanuel]

Ok George Well, you can use plaster with yolk adding any water soluble color or tempera to simulate the natural color.Will be for ever . Don't tell me about bacteria it is best to check the sausage in your fridge.
Best regards
Emmanuel

 

[SliceOfLife]

I was told not to worry about it. Barring one or two exceptions, it will be difficult or impossible for most types of bacteria to survive at room temperature for long term in spite of nutrient rich environment.

I'd find a new doctor.