i use 2ton epoxy to glue my glass magnets to rare earth magnets.
I had a few of those little (10mm) rare earth magnets around, and needed
> some refrigerator note holder-uppers. So I decided to glue a few chips of
> granite to the magnets.
>
> One attempt w/ Duco Cement didn't cut it. So I decided to try the "J-B > Weld". >
> I mixed it up according to instructions, put a dab on the rock chips, and
> went to press the magnets into the glue.
>
> As the magent approached, the dab of glue actually lifted off the rock chip
> (like a sunspot) and glommed onto the magnet. I pushed the magnet onto the
> chip and waited for the stuff to dry. Before it dried, though, the magnet
> sucked the glue out from between the rock chip and the magnet, so that the
> glue coated the magnet's surface. I'm not sure there's enough left to hold
> the magnet to the rock chip.
>
> I guess there's some iron in J-B Weld. And those little magnets are pretty > strong. >
> -JBB
>
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