See what age does to memory. The stuff we used came in a rope form.
----- Original Message -----
From: "John D. Mitchell, Jr." <cbqrr47@yahoo.com>
To: <BRHSlist@yahoogroups.com>
Sent: Monday, August 04, 2003 11:10 PM
Subject: Re: [BRHSlist] Plumbago
> True plumbago is NOT graphite. It IS a lead compound.
> The name comes from the Greek word for LEAD. It has
> the same root word as plumber, i.e. one who works with
> lead. The chemical symbol for lead is Pb. Many
> products used to contain lead as packing, etc. but
> powered lead was originally called plumbago. Later,
> the graphite, in "lead" pencils, etc., began to be
> erroneously called "plumbago". I too, have used
> plumbago as a sealite on O2 bottles and that was
> powered red lead.
> John
> --- Don Ross <don0731@gte.net> wrote:
> > 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..
> >
------------------------ Yahoo! Groups Sponsor ---------------------~-->
Buy Ink Cartridges or Refill Kits for Your HP, Epson, Canon or Lexmark
Printer at Myinks.com. Free s/h on orders $50 or more to the US & Canada.
http://www.c1tracking.com/l.asp?cid=5511
http://us.click.yahoo.com/sO0ANB/LIdGAA/ySSFAA/8ZCslB/TM
---------------------------------------------------------------------~->
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
|