[GreenKeys] Sweet teletypes

[Sam Stinson]

I’ve used it on old car parts, it works but takes many days to work. A faster option is Oxalic acid. I used it on a rusted typewriter and it worked well, removed all the rust in a few hours and no noticeable corrosion or paint damage. It’s available in a hardware store as “wood bleach” and is inexpensive.

https://www.jalopyjournal.com/forum/threads/tech-using-oxalic-acid-to-remove-rust.248198/

> On Jul 5, 2018, at 07:38, Nick England <navy.radio at gmail.com> wrote:
> 
> Has anyone tried this rust removal technique on TTY gear?
> 
> Nick
> 
> ---------- Forwarded message ----------
> From: nn8b.oh at gmail.com 
> Date: Thu, Jul 5, 2018 at 6:53 AM
> Subject: [radiotelegraphy] Removing Rust
> 
> I recently saw some conversation about removing rust from key parts
> I once wrote an article for World Radio's Wires and Pliers section about
> using molasses as a rust remover.
> 
> I tried a commercial rust remover (Evap-o-rust) which worked quite well,
> but was/is expensive if you have lots of stuff to de-rust.
> 
> I searched around for a cheaper way to remove rust and found that old
> car buffs use molasses and water in large containers to remove rust
> from car parts. 
> 
> The formula I used is one bottle of black strap molasses in a gallon
> container and fill the rest with water. I heated the molasses carefully
> in a microwave to get it to pour better. Heat it slowly, about 10 seconds
> at a time till it gets pour-able. Mix the solution and start de-rusting.
> 
> I tried straight key arms and other steel parts first and compared the
> results to the commercial stuff and the results looked the same to me;
> and much cheaper.
> 
> The de-rust process is called chellation or chelation. The molasses 
> reacts with the iron oxide and absorbs it leaving the base metal.
> I used a wire to suspend the part into the solution and checked it
> every day to see how it was doing. It is a slow process but it gets
> into every nook and cranny of the part and removes the rust.
> 
> Just wash the part with water to see the progress. I have put entire
> brass keys into the solution and it does not bother the brass.
> 
> The solution is biodegradable, so you can just pour it down the drain
> if you wish.  I have used the same gallon of solution now for 8 or 10
> years. I should probably make a new gallon hi hi.
> 
> One caveat; the solution is a natural ingredient and it will form a green
> scum after a while. I just scooped it off and it soon stopped producing it.
> 
> Try it; it's cheap, doesn't smell and it lasts a long time. Try it on some
> unimportant parts or tools or other steel items till you are confident
> of it's capabilities. I use it for tools all the time.
> 
> 73
> Don, NN8B 
> 
> __,_._,___
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