Rafael Ignacio Zurita wrote: > What I am seeing is that the toner is removed when I am trying to > remove the copper with acid. Then, the board left ruin :(
Interesting effect :-) How long did you etch until you got this ? > http://fz.hobby-site.org/hp660lx/board-problem.jpg The solution looks very green. Maybe add a bit of 30% peroxide until the color gets more blueish. You also seem to have a lot of etching solution. You only need enough to submerge the board. If you use a hermetically sealable container, you can reuse the solution. If it gets stale, you can refresh it by adding a bit of HCl and peroxide. - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
