FR-4 doesnt have to be green colored? Correct ?
Other question .. for making etchant ..
I saw 2 parts peroxide to one part muriatic acid ( 34% hydrochloric acid )
and I saw 3 to mix as well ..
Is it crucial ? I mean I guess the only thing that it would change is the
etching
times .. and the fumes LOL .. ??
Randy
Other question .. for making etchant ..
I saw 2 parts peroxide to one part muriatic acid ( 34% hydrochloric acid )
and I saw 3 to mix as well ..
Is it crucial ? I mean I guess the only thing that it would change is the
etching
times .. and the fumes LOL .. ??
Randy