> This sticky copper tape for glass work, is it not way too thick for
> PCB traces? i mean will it etch?
>
I have a feeling it might be too thick to give reliable etching. I
have ordered some copper sheets used for guitar pickup shielding just
to see what it is like.
> The glue-backing is a serious problem. Even if there is no kapton you
> won't be left with a clear glass PCB. You'll be left with a sticky
> mess PCB.
> I see only two solutions: Wash away the glue somehow (possibly
> impossible without removing traces as well), or use clear as glass
> glue (might be hard to get a really flat surface).
> Maybe some plain copper tape can be stuck on with 2-component epoxy.
> There are some FR4 types that are very translucent already.
>
> ST
>
Well, I shall have to see. It is true that the glue might create a
mess. It might dry nice though or it might just wash away during etching.
ST, do you have any links to translucent FR4?
Trev