The ring forms from Buehler that Owen mentioned work very well.  I have
used for 10 years with no issues.  They work for both EMPA and Ion Probe
mounts.

-Jack

On Fri, Oct 20, 2017 at 8:44 AM, Owen Neill <[log in to unmask]> wrote:

> Our lab also uses the Struers mounts, and they are quite effective. You
> can use vaseline as the mould releasing chemical - coat the walls of the
> mould in vaseline, pour or arrange your grains on the bottom, and pour the
> epoxy in over it. The only drawback is you can't use hot-cure epoxy like
> Petropoxy because the moulds will melt at those temperatures.
>
> That said, the rings you're looking for are, I believe, still sold by
> Buehler - part #208151100, https://shop.buehler.com/ring-
> forms-plastic-1odx34
>
> Good luck,
> OKN
>
> On Fri, Oct 20, 2017 at 8:18 AM, Aylward, Wanda <[log in to unmask]> wrote:
>
>> Our labs regularly make the epoxy mounts using materials from Struers.
>> The below is forwarded on John Hanchar's behalf:
>>
>> "Struers sells them made of polyethylene but they need to be lined with a
>> mould releasing chemical  (silicone oil also from Struers) that dries and
>> keeps the epoxy from adhering to the walls. Note, they are 25 mm diameter
>> and not one inch (25.4 mm) which is preferred for most EPMA, LA, and SIMS
>> applications."
>>
>> Cheers
>>
>> Wanda
>>
>>
>> -----Original Message-----
>> From: JEOL-Focused Probe Users List [mailto:[log in to unmask]] On
>> Behalf Of John H Fournelle
>> Sent: October-20-17 9:30 AM
>> To: [log in to unmask]
>> Subject: [PROBEUSERS] in search of 1" diameter cylinders for epoxy
>> mounting grains for EPMA
>>
>> Last time I checked, all the suppliers were no longer carrying these
>> cylinders. Someoine just asked me so I pass this on to the list; do you
>> know of a supplier (at reasonable cost) of these cylinders (fiberboard I
>> think they were). Please respond to the list if you know of a supplier.
>> Otherwise the solution is finding the proper OD tubie/pipe and cutting it.
>>
>> Thanks.
>>
>> John
>>
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>
>
>
> --
> Dr. Owen K. Neill
> Manager, Electron Microbeam Analysis Laboratory
> School of Earth and Environmental Sciences
> 2007 C.C. Little Science Building
> Phone: (734) 615-6657
> Web: https://sites.lsa.umich.edu/emal/
> **** JEOL Probe Users Listserver
>
> Moderator: Anette von der Handt, [log in to unmask], Electron Microprobe
> Lab, University of Minnesota
>
> Post a message: send your message to [log in to unmask]
>
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>
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>
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>

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