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Re: [Shop-talk] Source (or alternative) for Phosphoric Acid

To: JAMES STONE <jandkstone99@msn.com>, Shop-Talk List
Subject: Re: [Shop-talk] Source (or alternative) for Phosphoric Acid
From: Doug Braun <doug@dougbraun.com>
Date: Thu, 20 Sep 2007 19:48:57 -0700 (PDT)
I have used a product from Home Depot called "The Must
for Rust".  It is maybe six bucks for a quart spray
bottle, and is exactly what you need.

Doug

--- JAMES STONE <jandkstone99@msn.com> wrote:

> I have a set of gas tanks that I am cleaning and
> re-sealing.  I intend to use
> Hirsch Gas Tank Sealer, which comes highly
> recommended.  Based on
> recommendations from a friend, I cleaned the tanks
> using muriatic acid, which
> worked like a charm: 40 year old tanks came out
> looking like they'd been
> sandblasted.  However, it is necessary to wash out
> the acid with water, which
> then caused the tanks to immediately flash rust. 
> That was expected, and I had
> a pint of Hirsch's Gas Tank Etch
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