Re: ATM Coating Stains

[hclaus@clausing.com]

Pete,

      What you gave me was the recipe for stripping pure Chromium.    I was doing that 
way back when I was just a kid   :-)   ( Really !!!!    I grew up around this place & 
started coating when I was about 12 years old ! )   I truly appreciate your suggestion,  
but it won't work in this case.  Thanks for trying to help !

    I know what we are dealing with.  It is residual Aluminum Oxide.    I have seen this 
before on commercial optics ( and the occasional telescope mirror) .   The Oxide is very 
stable & resistant to Acids.    The only good solution to the problem is polishi
ng.

    The good news is that the Oxide normally exhibits poor adhesion.    Polishing should 
only take a few minutes.   If properly done,  the figure is preserved. 


    It shouldn't be all that difficult.  The only problem is,  he just ran me through the 
shredder with some rather vicious postings.   Someone should tell him that stuff doesn't 
leave his vendor ( the guy who can help him out )  in a very good frame of mind  :-)


    I am currently considering the situation.  Any solution will be in strict accordance 
with my established company policy.


    I always enjoy our friendly competition !


Best Regards,

H.C.

http://www.clausing.com