[ATM] Polishing staining

["Douglas Arion" <darion@carthage.edu>]

Hi everyone,

I'm doing my bi-annual ATM class here...and having a
problem I've seen once before that seems to be
inexplicable: Polishing plate glass 6" blanks on Gugolz 64
using CeO from Salem, several of the students get a thin
filmy coating on their mirros which seems to be removable
with acetone and hard, and I mean hard, rubbing (we're
using surgical cotton), which does optically affect the
glass (which is then polished out with the next session).
Any ideas what's causing this? Was to eliminate it? Not
everyone gets it (I have fifteen mirror makers at the
moment), and no one who gets it sees it all the time, just
intermittently.

Thanks,
Doug

 
 

_________________________________
Dr. Douglas N. Arion
Hedberg Distinguished Professor of Entrepreneurial Studies
Professor of Physics
Head Coach, Ice Hockey
Carthage College
2001 Alford Park Drive
Kenosha, WI 53140
262-551-5864
262-551-6208 (Fax)
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