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  1. #1
    Join Date
    Jun 2005
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    Default Shapton 5000 Stone

    I was kindly given a Shapton 5000 stone and I have a few questions about it. It is an older purchase, how old I don't know but not recent and I wonder where the sharpening part of the stone stops. There is a warning on the bottom of it warning that it is not a sharpening surface and the sides have two distinct colours, does the sharpening medium stop at the white/pink boundary? The brown line I think is discolouration from being in the plastic case for many years. The reason I ask is I thought Shaptons were not like this, I have heard the glass stones criticised for not having a deep sharpening medium but the sharpening part of this stone does not appear to be much if any deeper if it stops at the white part.

    IMG_2127.jpgIMG_2128.jpgIMG_2129.jpg
    CHRIS

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  3. #2
    Join Date
    Dec 2013
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    San Antonio, Texas, USA
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    Default

    As far as I know they're homogeneous throughout. I have used a stone dresser to remove the imprint from the back side and have seen no difference in the edge produced.
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

  4. #3
    Join Date
    Feb 2003
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    back in Alberta for a while
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    Default

    Quote Originally Posted by Chris Parks View Post
    I was kindly given a Shapton 5000 stone and I have a few questions about it. It is an older purchase, how old I don't know but not recent and I wonder where the sharpening part of the stone stops. There is a warning on the bottom of it warning that it is not a sharpening surface and the sides have two distinct colours, does the sharpening medium stop at the white/pink boundary?
    Chris
    Shapton stones come in at least 3 grades -- professional, glass stones and the one you have.
    Professional stones are the same all the way through and can be used on either surface.
    The stone you have is NOT a professional grade stone and the sharpening medium stops at the white / pink boundary.
    regards from Alberta, Canada

    ian

  5. #4
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    Default

    Thanks Ian, that clears it up, I have the glass stones and haven't had any experience with the professional series.
    CHRIS

  6. #5
    Join Date
    Nov 2005
    Location
    Darkest NSW
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    3,195

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    They are Shapton M5 stones - I have a couple. A cheaper alternative to the solid Shapton Professional; there may be less thickness of abrasive, but nothing wrong with the quality. I have a 5000 and 13000 Shapton M5, still plenty of meat left on both of them. The guy in Japan (Stu?) used to highly recommend these, and I haven't regretted buying them.

  7. #6
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    regards from Alberta, Canada

    ian

  8. #7
    Join Date
    Mar 2006
    Location
    West Chermside
    Posts
    119

    Default

    As stated elsewhere there are different types of Sharpton stone, the glass backed stones, the professional series are the easy to find types currently available. I have most of the professional series, sans the 30000 grit which is out of my price range.

    I had one of these pink stones and it was made by shapton and included as part of a Global knife set, it was also the softest and easiest to gouge stones I have ever owned. The back is simply a medium to support the abrasive layer and does not work as a sharpening surface (I tried).This backing material seems to be little more than a hard bonded clay with minimal abrasive ability. Mine originally came in a global box with a rubber ring around the bottom edge to act as a holder. I hated mine and gave it to my brother who insisted it was user all error until he tried to use it.

    As for the glass Shapton stones only having a thin abrasive layer, a friend of mine has them and says that even though thin the layer is very slow to wear away compared to other water stones. He also flattens his stones at the end of each sharpening session. I am yet to hear of anyone actually wearing the abrasive all the way through. I would be interested to hear of any hobby woodworker actually wearing a stone out. All the best.

  9. #8
    Join Date
    Apr 2011
    Location
    McBride BC Canada
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    3,543

    Default

    The wear on a synthetic stone is mostly related to the quantity and quality of the adhesive binder.
    There's a code for that if the stone maker is willing to reveal what they do.

    Flattening my 1K and 4K waterstones took away so much abrasive (and binder) that fine sandpapers seemed cheaper.
    Plus, it was a huge amount of time and effort to repair the abrasion from many wood carving gouges.

    The Scanning Electron Microscope images of sharpened steel edges show there's little value beyond 1,500 grit
    and honing with CrOx (0.5u) or AlOx (0.25u).

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