[ATM] Trouble getting CeO off of bevel

[Adam Krause <krausea34@yahoo.com>]

Hello everyone,

I have made some good progress over the past few months on my 8" f/6.2 mirror thanks to the help of those on this list.  Once again I have hit a roadblock.  I am trying to figure out how to get the cerium oxide off of the bevel on the mirror.  I assume this is necessary before sending the mirror out to get coated.  I figure that I better know how to do it before going into final figuring and parabolizing.  Everything I've tried so far hasn't worked.  I have tried...

Rubbing it off with my fingers
Brushing it off with a finger nail cleaning brush
Brushing it with a toothbrush
Scrubbing it with the foam part of a sponge (non abrasive side)
Using a polishing attachment on a Dremel tool
Tried using water, dish soap and water, and acetone

So far I have only managed to get a very small bit of glass to show up and this was with a lot of work.  Information on the bevel: The bevel was finished with a combination of 400 grit sandpaper and the fine side of a knife sharpening stone.

I have some pictures to help you see where I'm at:

Thanks,

Adam Krause


Current state of bevel
http://bellsouthpwp2.net/a/d/adamlisakrause/Bevel%20cleaning%20attempt%2002-02-08/Bevel%20cleaning%20attempt-%20current%20results%2002-02-08-%20small.jpg

Tools and methods I've tried
http://bellsouthpwp2.net/a/d/adamlisakrause/Bevel%20cleaning%20attempt%2002-02-08/Bevel%20cleaning%20attempt-%20tools%20and%20supplies%2002-02-08-%20small.jpg


      ____________________________________________________________________________________
Be a better friend, newshound, and 
know-it-all with Yahoo! Mobile.  Try it now.  http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ 

_______________________________________________
ATM mailing list http://www.atmlist.net/