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I have just purchased a china Guangxi 12,000 grit polishing stone. I need advise. Do I need an additional sluri stone, to polish hone my Bergischer Lowe? If so, what is it called, where do I purchase it, and how much will it cost? I already have a Norton water combo stone 220/1000, and a Norton water combo 4000/8000 stone. STRAIGHT RAZOR 13.
No, you don't need an additional slurry stone. The only time that I know of that any were available was when Chrisl took it upon himself to cut up a few of the Chinese 12Ks to make both slurry stones and narrow hones that were each 1/4 of a whole stone. As far as I know, they have all been purchased and I'm not letting mine go!:D
The use of the slurry stone greatly increases the versatility of the hone but it is not needed in order to use the hone as a final polisher.
If you have just purchased this hone, hopefully you know that you need to lap it. A search of this forum will yield numerous discussions about lapping this hone. A more general description can be found in the honing sticky entitled "Welcome and honing FAQ."
You don't really need one, but if you have one it will cut down on the number of laps you have to make on the hone to achieve the same effect - the slurry makes it work quicker, possible at the expense of reducing the grit rating a bit. A small diamond plate like knife sites often advertise will do as a slurry stone, or you could cut a slip off the end of your own stone if you have a decent blade on a grinder - a diamond blade on an angle grinder would do.
Regards,
Neil
If you have any flavor of a DMT stone, you can use that to raise a slurry, too. My Chinese 12k stone has a couple of defects in it that I don't run the blade over, so I raise the slurry on the other side of the defects with either a DMT or a slurry stone, then squeegee it over to the other side of the defect. Slurry with the 12k will dramatically increase it's cutting speed.