Homebrew PCBs

On Thu, 06 Aug 2009 18:52:07 -0700
Matthew Andrews <matt@...> wrote:

> I have fairly good
> results with respect to toner adhesion though I definitely need some
> improvement, but what's worrying me most is that I end up with what
> looks like a plastic layer from the paper stuck to the board that will
> not come off without heavy scrubbing with something like a scotch brite
> pad.

That looks similar to problem I had (with Epson gloss paper). Try using a
tooth brush while the board is still wet. Or, when dry, try to pass a not
too hard (paint) brush over it. In my case, those deposits could be
removed that way. The toner was quite resistant to the brushing.
The 'plastic' is probably a gelatine-like substance which absorbs ink.

Also, I wouldn't hold the iron in one place, but move it around a bit. I
think it will heat the surface more evenly that way.

> 9) drop in hot soapy water for 5 min.

Soaking may need a little longer, depending on the paper. Don't be afraid
to leave it 10' or more, if that helps.