Damaged stone. Is this a problem? (scuff marks and chip)

[Onimaho]

Hi all

Got a question. I received a second hand stone and I have flattened it. There were stone superficial scratches that have all been removed but there is a chip and some scuff marks on the side. My question will this damage the razor?

My gut feeling says yes in which case I'll be buying some low grit paper and just go ham until all damage had been removed. My estimate is dat will be 0.3 to 0.7 mm of work. This is not insignificant and I wanted to sanity check with the knowledgeable people here.

 

[rhgg2]

To me the ones on the left look fairly shallow and easy to lap through. The chip to the right looks bigger and personally I would not lap the whole thing out. I would use sandpaper locally to make sure it is smooth and well below the honing surface, or maybe make a wider shallower bevel on that side to bring to edge in beyond the chip.

 

[Legion]

Chamfer the edges below the level of the surface face. No big deal.

Or just sand the corners of the chips until they are a tiny bit below the face. Even easier.

Anything that is even a little lower than the surface of the hone should not bother the edge.

 

[Onimaho]

And this is why sanity checks are a good thing! Thank you!

 

[captaincaed]

Nice find! Those Belgian blues can be nice mid range stones. Sandpaper wrapped around a pencil gets into those corners nicely, and will save you time and stone.

 

[Gamma]

I wouild lap the stone flat until all the distractions in the top (not edges) are flush. Then I'd lap the chamfer in until the chip on the right is all chamfer and not showing any chip. If there is a fissure under the chip area (common) hit it with nail polish.
Just lapping all the noise out is fine too, I've decided to take a mm or 2 off for peace of mind. I don't see the loss in dimension, in this case, to be a bother.

 

[marv]

If I were you, I wouldn't waste the stone. Use a small piece of sandpaper for the cracked part on the right. Just work on that part with a little sandpaper. Same for the part on the left. If you chamfer the edges with sandpaper, you won't have any problems. It won't hit the edge.

 

[Onimaho]

Nice find! Those Belgian blues can be nice mid range stones. Sandpaper wrapped around a pencil gets into those corners nicely, and will save you time and stone.

It was sold as a thuringen whetstone for razor finishing. But if it were a Belgian blue I wouldn't cry about it. I bought this stone along with another hone for 30 euros from a guy who restores razors. According to the net he is trustworthy so I decided to gamble.
My thought process was that even if the stone is coarser then I could use it as middle hone.

 

[Onimaho]

I did as you guys suggested and took a round pencil and went at it. Then I smoothed it a tad with my finger.
Below a picture of the stone now as well as the other that came with it.

 

[Wid]

I did as you guys suggested and took a round pencil and went at it. Then I smoothed it a tad with my finger.
Below a picture of the stone now as well as the other that came with it.

View attachment 2025538

Looks like it could be a thuri to me.

 

[Legion]

Looks like it could be a thuri to me.

On my phone it looks like a BBW in the first pic, and maybe a Thuri (or other type of slate) in the second.

 

[Darth Scandalous]

What color is the slurry?

 

[psfred]

Lap it flat and you will be fine. Cell phones do terrible things to color and contrast in photographs, it sure looks like a BBW in the first pic, but definitely slate in the second.

Get all the scratch marks out and it should work.

 

[Frank Shaves]

The remaining scratch marks do look like they could be a problem. I would use a pencil to put hash marks on the face and lap until they and the scratch marks are gone.

 

[Onimaho]

What color is the slurry?

The smaller one is a dark red slurry while the large one is harder to say. Mostly grey. There might be some blue or green in but that is uncertain.

 

[Onimaho]

Lap it flat and you will be fine. Cell phones do terrible things to color and contrast in photographs, it sure looks like a BBW in the first pic, but definitely slate in the second.

Get all the scratch marks out and it should work.

The remaining scratch marks do look like they could be a problem. I would use a pencil to put hash marks on the face and lap until they and the scratch marks are gone.

Got everything out. I'm actually thinking they were put there by my 400 grit diamond plate. Today I first got everything out using wet and dry grit 600 and then u finished up by rubbing them against each other.

 

[Frank Shaves]

I have seen scratch marks from my 400-grit Atoma plate. For each grit, finish with only the weight of the stone. This will minimize the depth of the scratch marks from that grit, making them easier to remove with the next grit.