Homebrew PCBs

On 3/18/2013 2:39 PM, AlienRelics wrote:
>
> OK, so keepitsimplestupid hijack's Ricks thread, and smilingcat 
> hijacks keepitsimplestupid's hijacked thread. Interesting.
>
> For those of us who are not chemists, what is HF acid?
>
> Steve Greenfield AE7HD
>
> -
>
Trust me.
You are better-off not knowing what it is.
Much, much better-off not ever trying to use it.
Good stuff to stay away from.

Roland F. Harriston, P.D.
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