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Posted by Ignoramus31588 on May 19, 2008, 12:34 pm
Please log in for more thread options > Ignoramus31588 wrote:
>
>> I have a few zinc plated steel retainer brackets that are of no
>> general value. 3/8 by 1" in cross section, slieghtly bent.
>>
>> I wanted to use them for welding practice, but I need to remove zinc
>> first. Is there some easy thermal or chemical way to do it, like maybe
>> put in a barbeque for an hour, or acid or something like that?
>>
>
> Lye removes zinc. The stronger and hotter the quicker. The cool thing about it
> is that while the part is in the lye solution the zinc works to derust the
part
> too, so your part should come out looking shiny and new but no longer
> zinc-plated. The bad news is that Red Devil lye went out of business so now
it's
> quite a bit harder for us home shop guys to buy lye.
I think I have some lye based drain cleaner. I will check. Cool idea.
By the way, lye did not work too well for me to clean drains, and I
used sulfuric acid instead to great effect (and a lot of smell).
I will use eye protection and chemical gloves.
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> general value. 3/8 by 1" in cross section, slieghtly bent.
>
> I wanted to use them for welding practice, but I need to remove zinc
> first. Is there some easy thermal or chemical way to do it, like maybe
> put in a barbeque for an hour, or acid or something like that?
>