Re: HCI h2o2 issue

Posted by Silver Blues on Sep 13, 2020; 8:17pm
URL: http://guitar-fx-layouts.238.s1.nabble.com/HCI-h2o2-issue-tp49160p49161.html

The etchant that you say failed to remove all the copper from the board, what did it look like? Was there a bunch of brownish solid floating around in it?

Your new batch, did it turn green when you performed the etch?