On Sun, 27 Feb 2005 10:49:08 -0700, "TT" wrote:

Is there a chemical method to removing mill scale? I'm working with 14ga and
removing mill scale is just time consuming and generally not a fun job. I
hit it with a stone disc to get the majority of it off & then flapdisc to
desired finish. Among other problems is that heat generated from the stone &
flapdiscing will sometimes warp the piece.

Anyone know of a chemical method? How about muriatic acid? Do they make a
"stripper" chemical for steel?

Alternatively, I hope to buy a blasting gun & cabinet soon, what kind of
media should I use to remove mill scale? Would walnut shells do the trick or
will I need something harsher?

Thanks to those who responded to my clearcoating question.

-Tom

I've asked the same question. The answer: A solution of vinegar and
salt. Use excess salt. Dissolve as much as you can in the vinegar.
If done right there'll be a layer of it in the bottom of the
container.

Regards,

Orrin