Re: [ATM] Life on the edge

["Thomas Janstrom" <thomas@moiler.com>]

I have found an ultrasonic bath works well on small optics (sub 3"), but
finding one that will take a 10" mirror will be a real challenge.

I wouldn't worry, it won't even be a problem for the coater, cerium oxide
doesn't out gas (although the water with it does, but the plasma cleaning
will take care of that anyway).

Thomas.

-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
ArtfulBodger
Sent: Thursday, 18 October 2007 9:49 AM
To: atm@atmlist.net
Subject: [ATM] Life on the edge

The cerium slurry drools over the edge and stays there, and however 
hard I scrub, the white stains remain.  So.  Hmm.  The diamond hone 
would clean things up fine, but I'm not going anywhere near that 
mirror with a diamond abrasive.

Somebody told me I should use cratex or a great big eraser.  That 
sounded good, but it didn't work.  I have a bunch of art & drafting 
erasers around here, but none of them could touch the cerium.

I thought maybe I could put some of the polishing slurry on a tile, 
and go around the edge with that: fight cerium with cerium.  Pretty 
sure that would do it, though I'd have to be careful not to mar the 
mirror surface.

Or is there a simpler way I'm overlooking?  Or should I just not 
bother?  I'll appreciate your suggestions.


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