http://m.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/
Question. First off I'm new to pcb etching. Always used perf boards. Tried this solution and love it! First few boards I etched took minutes with a fresh solution. I had to make another solution and dropped a board in it. It took nearly 20-30 minutes to etch a small board. Tried to mix another solution like instructable says and same thing. Slow etch. Why? Should the board be dry after rubbing paper off or could paper from the laser etcher still be on there slowing etch time down? Also, light? Could light really slow it down that fast? Heating? Can that speed it up? And I know about agitating it. Thanks!
Oh, this is using muriatic acid and hydrogen peroxide
Question. First off I'm new to pcb etching. Always used perf boards. Tried this solution and love it! First few boards I etched took minutes with a fresh solution. I had to make another solution and dropped a board in it. It took nearly 20-30 minutes to etch a small board. Tried to mix another solution like instructable says and same thing. Slow etch. Why? Should the board be dry after rubbing paper off or could paper from the laser etcher still be on there slowing etch time down? Also, light? Could light really slow it down that fast? Heating? Can that speed it up? And I know about agitating it. Thanks!
Oh, this is using muriatic acid and hydrogen peroxide