[meteorite-list] Iron slice etching questions

From: Matson, Robert D. <ROBERT.D.MATSON_at_meteoritecentral.com>
Date: Thu, 16 Jun 2011 18:32:18 -0700
Message-ID: <9180F6B27399C541B10663E21C8BDE92020B322A_at_0461-its-exmb09.us.saic.com>

Hi Shawn,

PC board etchant works ten times faster than nitric, so you need to
watch the etch as it progresses and be ready to shut it down the
instant you "like what you see". No harm, of course, if it goes
too far -- you can always repolish and re-etch until you get the
result you want. Just letting you know that the etchant solution
acts VERY quickly compared to nitric. --Rob

-----Original Message-----
From: meteorite-list-bounces at meteoritecentral.com
[mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of Shawn
Alan
Sent: Thursday, June 16, 2011 6:27 PM
To: Michael Mulgrew
Cc: meteorite-list at meteoritecentral.com
Subject: Re: [meteorite-list] Iron slice etching questions

Michael M and Listers

As for the Radio Etchant solution do you apply it in the same manner as
you would with nitric acid and once you see the desired etch you stop
the process? As for a lacquer finish if you have that on a slice can you
use acetone to remove it or sand it off?

Shawn Alan
IMCA 1633
eBaystore
Received on Thu 16 Jun 2011 09:32:18 PM PDT