[R-390] Polishing

Tue, 08 Apr 2003 19:32:44 -0400

From the "Yeah-But Department"

YEAH, go ahead and remove the rest of it, BUT, be careful.  While virtually
harmless when intact, that MFP stuff has some nasty ingredients, so we're
told -- like maybe some mercury compounds and other things you should not
breathe in or ingest even in trace amounts.  Don't use a wire brush or
sanding wheel.  Keep it wet with cleaner so it doesn't go airborne.

Anybody remember "mercurichrome"?  It was the lower-intensity, user-friendly
alternative to iodine.  Technically speaking, I suppose none of us should be
here. Could be many bad things got worse over the last half century -- maybe
one of those paradigm shifts.

Barry

----- Original Message -----
From: "rbethman" <[email protected]>
To: <[email protected]>
Sent: Tuesday, April 08, 2003 6:12 PM
Subject: RE: [R-390] Polishing

> That "yellow" coloration is the "MFP" or Military Fungus Protection.
>  Unless you plan on operations in a high humidity environment, just
> polish till your happy!
>
> Bob - N0DGN
>
> -----Original Message-----
> From: David P. Goncalves [SMTP:[email protected]]
> Sent: Tuesday, April 08, 2003 6:27 PM
> To: [email protected]
> Subject: [R-390] Polishing
>
>
> My R-390 power supply chassis is blackened from a fire under the
> rectifier
> tubes. I've removed most of the soot with water and a Q-tip.
>
> Today I got the idea that I was going to use NEVR-DULL to remove the
> rest.
> Well, that it did, but it also removed the chassis 'yellow'. Now I
> have a
> part yellow, part silvery chassis.
>
> What is this yellow color?
> Does it (usually) come off whenever polished?
> Is there a need to keep it on?
>
>
> David Goncalves
>
>
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