Thread: chinese 12k

I am soaking my new 12k and I had a quick question. I have 600 grit and 1000 grit sandpaper. I would like to use my 600 grit and finish off using a 1k king to lapp the stone instead of 1k sand paper. Would this cause any problem?

I don't think it'd cause a problem, provided the stone is perfectly flat. You may find it better to use the paper & a sheet of glass though. Experts along soon though, no doubt!

I should have put this in the lapping equation thread but thanks for the answer...I just want lots of opinions.

I would PM randydance062449. He has a lot of experience with lapping hones with sandpaper. A PM would assure that he sees this post and replies one way or the other.

You want to use the King to finish the C12k; is that correct? I don't think it will work out. I have a King 1k and the C12k. The King is a pretty slow stone and is way softer than the C12k. I try to use stones that are closer in hardness; when I was taking the scratches out of my C12k I used a Swaty. Any barber hone should do the trick (assuming the barber hone is already lapped).

You should be able to get a super smooth surface with the 1000 grit sand paper.

Soaking the chinese 12k is a waste of time, though. It doesn't absorb anywater whatsoever. Wet the stone and the put the tiniest bit of dish soap on the surface, and the water will stay for quite a while.

Yeah i noticed that it held no water. I will try the sandpaper instead. I have already started with the 600 grit paper.

Originally Posted by Ben325e

You should be able to get a super smooth surface with the 1000 grit sand paper.

Soaking the chinese 12k is a waste of time, though. It doesn't absorb anywater whatsoever. Wet the stone and the put the tiniest bit of dish soap on the surface, and the water will stay for quite a while.

+1n here. I cut a lot of these Chinese 12k's to make slurries. As an experiment, I soaked one for an hour before cutting it. the water did not penetrate the stone at all...I don't think i'd use a King to lap it. I use DMT's and wet/dry sandpaper....

While I don't have a lot of experience lapping Chinese stones, I found that starting with 320 grit wet/dry sandpaper on a flat granite tile (my countertop) worked pretty well and didn't take too long. I finished with 600 grit but may try going to 1k to see if there is much difference.

If anyone has opinions on what grit one should use last when lapping a Chinese stone, I'd love to hear it.

Thanks

As I said above, I finished mine with my Swaty. Estimated grit... 8-10k I guess.