Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Lez <lez.briddon@...> wrote:

Greetings all, I am new here and have read a few posts on using 
hydrocloric acid instead of ferric chloride, I used ferric chloride 
from Radio Shack once or twice back in the '70s, I haven't etched a 
board since, is it safe to use hydrochloric acid on pcboards?, I 
purchased a galon a few years back and poured an ounce or two on 
concrete to make it porous and it ate it up, I gave the rest to a 
friend.
I'v been using perfboards to make my prototypes but it would be nice to 
make pcboards again, I was thinking of purchasing a cnc machine but 
they are pricey, I think Radio Shack is going to discontinue to sell 
ferric chloride.
What I purchased was Muriatic acid.