Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

lcdpublishing wrote:

> No, no stain remover, but I have plenty of old clothes that would
> probably look better with a few stains :-)
>
> Chris
>

I find diluted (1:0) hydrochloric acid removes ferric chloride stains in
minutes. Just apply a drop directly to the stain, then rinse.

Marketers have a habit of re-labeling and selling rudimentary products.