If you don't mind me asking, what formula of chemicals are you using?
Dick

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Richard H. Neighbors
Building and repairing fine billiard cues for real pool players at
affordable prices.
Over 35 years exp. Located in Cincinnati OH
ph.# 513 233-7499
e-mail
web site http://www.dickiecues.com
"Ignoramus32654" wrote in message
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I made a basic electrolytic derusting setup and am using my welder

http://igor.chudov.com/projects/Weld...berTig-Welder/

to run the current.

I am derusting a very rusty old railroad tie plate that spent a while
laying in my yard.

After a while of derusting at about 15 amps, 37 volts or so, the
surface of it turned black.

Should I expect it to become shiny metal after a while, by itself, or
is it my responsibility to clean off the black crud?

Could it be that I am basically done with derusting and simply need
to clean the black crud with a wire brush or some such?

I am taking pictures as I go.

thanks

i

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