Plumbago was a packing compound using fibres and graphite in its normal
useage around the railroad. We used it for valve packing quite a bit..
----- Original Message -----
From: <jeralbin@aol.com>
To: <BRHSlist@yahoogroups.com>
Sent: Monday, August 04, 2003 3:14 PM
Subject: [BRHSlist] Plumbago
> In a message dated 8/4/2003 12:37:03 PM Central Daylight Time,
> BRHSlist@yahoogroups.com writes:
>
> > Technically, the "red lead" was not a true "paint". It
> > was a mixture of linseed oil and powdered red lead
> > oxide (called plumbago in the trade).
>
> I believe plumbago is one form of graphite. Probably mixed with a drying
oil
> to coat the firebox and smoke box. Jerry Albin
>
>
> [Non-text portions of this message have been removed]
>
>
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