It is with great sadness I'd like to announce Dr. Hanneman passed away on December 12, 2020. His legacy will live on forever!
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 Post subject: USFG Forum - MDR #30 polish lap question
PostPosted: Mon Sep 07, 2020 12:07 pm 
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In case any of you are members over at the US Faceting Guild Forum (I'm not - just a lurker) and can pass this on, someone asked about a #30 MDR polishing lap.

https://usfacetersguild.org/forums/topic/mdr-30-alloy/

According to MDR's "the Book of Gem Cuts (vol. 2), the #30 is type metal, usually composed of tin, lead, and antimony.

Thank you!

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 Post subject: Re: USFG Forum - MDR #30 polish lap question
PostPosted: Mon Sep 07, 2020 8:05 pm 
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Fyi, I relayed the message along with some info I had from my MDR literature.

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 Post subject: Re: USFG Forum - MDR #30 polish lap question
PostPosted: Mon Sep 07, 2020 11:43 pm 
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Thank you!

I really should renew with the USFG...

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