Re: [MV] Lead-fill body work.

From: Richard Notton (Richard@fv623.demon.co.uk)
Date: Fri Nov 24 2000 - 10:00:41 PST


----- Original Message -----
From: "Gavin Broad" <invest@portsmouth-mann.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Friday, November 24, 2000 2:51 AM
Subject: [MV] Lead-fill body work.

Gav,
>
> If one uses lead to fill tiny rust holes in a panel, will the lead
> enclosure prevent further corrosion of the steel underneath?
>
Unlikely.

> If no, what's the treatment and preparation?
>
Shot-blast or otherwise remove material back to virgin metal. It will
surely continue to corrode and likely exfoliate if you don't.

Rust is just a tiny short circuit battery formed by a speck of impurity in
the steel, add any electrolyte, water will do, and you have it eating away
by electrolysis:
Fe (steel) + H2O (water) = FeO2 (steel oxide, rust) + H2 (free hydrogen).

Richard
Southampton - England



This archive was generated by hypermail 2b29 : Sun Dec 03 2000 - 20:29:57 PST