Clear PCB Etchant results

[Keith Winstanley]

Today I have mostly be etching MS20 boards!

Well I have tried out the sodium persulphate clear etch and love it,
much quicker and generally a much more pleasant experience than ferric 
chloride. I dissolved it at about 50 degrees and etched an MS20 main board 
and filter board as it cooled in a developing tray, probably took longer than 
if I had a heated tank but still much quicker than the ferrous stuff. I think 
that the etching is more precise too, a much neater result and you get a 
beautiful blue solution at the end of it all  :)

Thanks to all those who recommended it to me, well worth trying out.

cheers...


Keith Winstanley
http://dspace.dial.pipex.com/town/street/sl67/