[TheForge] Chemical Questions ?

Wed Oct 16 07:32:00 2002

The electrolysis method is pretty simple, although the size of your panels 
will make it a leetle bit more difficult...

The idea is that you place a piece of metal that is rusted in a tub (non 
conducting, like plastic) with a bunch of water and baking soda. (The 
baking soda can be replaced with washing soda)  The ratio is usually listed 
as 1 tablespoon of baking/washing soda for each gallon of water.

Then you take a battery charger and connect the negative lead to the piece 
you are trying to de-rust. The positive lead goes to a piece of scrap 
metal. They both go into the tub but in such a way that they don't touch.

Also, do not submerge the positive lead in the tank when you place the 
scrap piece in... Otherwise the positive lead will be eaten away instead of 
the scrap piece.

Most recommendations say to use a 2 amp charger, but I've found that a 
small .5 amp charger does work... maybe just more slowly. For the size 
you're doing I would probably recommend the 2 amp at least.

The baking/washing soda will be used up after a bit, so feel free to dump 
some more in if it seems the reaction has slowed.

Aaron Silver

At 01:31 AM 10/16/2002 -0500, you wrote:
>Could you elaborate?
>dave m
>
>----- Original Message -----
>From: "Terry L. Ridder" <[email protected]>
>To: <[email protected]>
>Sent: Wednesday, October 16, 2002 12:43 AM
>Subject: Re: [TheForge] Chemical Questions ?
>
>
> > hello  dave;
> >
> > i would suggest the electrolysis method of cleaning them.
> > i have good success with the electrolysis method of cleaning
> > off rust and it does a good job at removing paint also.
> >
> > On Wed, 16 Oct 2002, lama wrote:
> >
> > dave>
> > dave> I have a couple of old (1930) and very delicate iron
> > dave> panels that need refinishing.
> > dave> The pieces are 10 feet tall, 3-1/2 feet wide and weigh
> > dave> 175 pounds each.
> > dave> These panels were put on display in a room that has
> > dave> an indoor swimming pool.
> > dave> The heavy concentration of chlorine in the atmosphere
> > dave> of the closed room caused the iron panels to rust very
> > dave> rapidly and heavily.
> > dave> I need to:
> > dave> 1. Chemically neutralize the chlorine.
> > dave> 2. Chemically remove the rust, old paint, etc.
> > dave>
> > dave> Any advice greatly appreciated,
> > dave> Dave Mudge
> > dave>
> >
> > --
> > Terry L. Ridder ><>
> >
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