[meteorite-list] Iron slice etching questions

[Michael Mulgrew]

Yup, like Rob said, with the etchant it's literally dab-dab-dab-rinse,
how does that look? dab-dab-rinse-done.  You don't want to soak the
iron in the etchant like you do with nitric, but rather use a foam
brush to apply.

On Thu, Jun 16, 2011 at 6:32 PM, Matson, Robert D.
<ROBERT.D.MATSON at saic.com> wrote:
> 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
>
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