I made a Frankenstone

G

gibbled

Joined
Sep 10, 2012
Messages
19
gibbled said:
I recently had to send my large Norton crystolon Jum4 back for warranty replacement. In the meantime I really needed to use that stone. A trip to the local building supply revealed the 6x2x3/4 Norton economy stones. I purchased two of these and glued them end to end and ended up with a fully functional large sized stone...

https://i.imgur.com/rD1MjFa.jpg

https://i.imgur.com/Ns0BxNs.jpg

https://i.imgur.com/CLLMZTv.jpg

https://i.imgur.com/x1Wh12v.jpg
Click to expand...
Does the seam cause any problems?
BTW, those are aluminum oxide stones, the jum4 is silicon carbide.
 
No problems so far, just a few sharpenings on it so far though. The economy stones have been silicon carbide for a few years apparently.
 
By apparent color in the picture, those do look like the older version, aluminum oxide stones. Older stones of AlOx are more a light grey (more so on the 'Fine' side), whereas the newer silicon carbide versions are darker, from a slate grey on the Fine side to nearly black on the Coarse side. And for their size, the AlOx stones are also heavier in-hand, as compared to the SiC stones.

The 'Economy' transition to SiC occurred sometime around ~2008 or so (I asked Norton/Saint-Gobain about this). But for some time after that, some vendors were still depleting stocks of the older AlOx Economy stones. For a while, I remember seeing a mix of both the AlOx & SiC versions, side-by-side, at Home Depot when they used to carry those. I made a point to cherry-pick the darker ones, when I went shopping for them.

Pic below was snipped from an older online Norton catalog. It illustrates the difference in color between an older-version AlOx Economy stone (87933) and a 6" SiC stone (87935) beside it. The darker stone is what the newer version SiC Economy stones looked like when they hit the market under the same old product number (87933).

kVVXVPV.jpg
 
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