"Tim Williams" wrote in message
...
"Ronnie" wrote in message
oups.com...
Thanks for all the great info. When you use Muratic acid, do you just
dip the piece or soak it...for how long?

'Til it stops bubbling hydrogen gas. Don't worry about flammability, it
dissipates quickly (being so light) and is hardly a high volume thing.

Oh, yeah, I forget about "how can you tell?" The zinc will get blotchy and
then it will disappear completely, or nearly so. It's lighter in color than
the acid-soaked steel.

--
Ed Huntress