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Thread: Chosera 1k drying time

  1. 04-19-2014, 03:05 PM #21
    Geezer
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    Quote Originally Posted by Lonerider View Post
    Here is what this seller of Chosera stones says...
    Japanese Waterstones: Naniwa Chosera
    "IMPORTANT NOTE on storage and lubrication: Chosera sharpening stones are bound with magnesium and so have more cutting particles per unit of surface than resin-bound stones. But magnesium-bound stones are much more sensitive to prolonged exposure to water as other types of stones. So Chosera stones should NOT be left to soak in water for prolonged periods and must be stored dry. If this advice is not followed the stones can develop hairline cracks or the binding material can be leached out of the stone. It is more than enough to pour a little water on the surface or briefly dip the stones in water, they do not need to be soaked. If you are not sure that you can keep this always in mind, perhaps because you have a number of different kinds of sharpening stones, it may be better to opt for the more tolerant Super Stones."
    This explained the fine cracks and the leaching of the white material (magnesium) from the stone I own. No hot water folks!
    ~Richard
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  3. 04-20-2014, 05:05 PM #22
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    Just had a thought..Thanks to Glen. The source of the stones' manufacture and perhaps changes in composition may be the culprit:naniwa chosera | eBay
    Mine is a newer hone I bought a year ago, Glen's is years old. I did also have crazing trouble with one batch of Ice Bear/King stones which i returned and received new ones.
    I guess it is 'follow instructions' with the newer hones.
    ~Richard
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  5. 04-20-2014, 05:18 PM #23
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    Default Chosera 1k drying time

    Quote Originally Posted by Geezer View Post
    Just had a thought..Thanks to Glen. The source of the stones' manufacture and perhaps changes in composition may be the culprit:naniwa chosera | eBay
    Mine is a newer hone I bought a year ago, Glen's is years old. I did also have crazing trouble with one batch of Ice Bear/King stones which i returned and received new ones.
    I guess it is 'follow instructions' with the newer hones.
    ~Richard
    I noticed it says soak for at least 3 minutes. It will be interesting to see what Naniwa comes back with. I sent an email asking about the subject.
    Last edited by Lonerider; 04-20-2014 at 05:21 PM.
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