camerart
Well-Known Member
Hi,
I've just made a bubble tank for etching circuits, including heating element.
I am about to etch a double sided PCB with tracks that pass between DIP Chip pins.
In the past I've used Ferric chloride and Sodium Persulphate/sodium Bisulphate. I found the Ferric Chloride a bit dark and stains my old tank, making it difficult to monitor the etching results. The sodium Persulphate mix is clean, and from memory I didn't get good results, but I'm willing to try again. Is anyone who uses bubble tanks got their favourite etchant? or are there any suggestions for a good etchant please?
Camerart.
I've just made a bubble tank for etching circuits, including heating element.
I am about to etch a double sided PCB with tracks that pass between DIP Chip pins.
In the past I've used Ferric chloride and Sodium Persulphate/sodium Bisulphate. I found the Ferric Chloride a bit dark and stains my old tank, making it difficult to monitor the etching results. The sodium Persulphate mix is clean, and from memory I didn't get good results, but I'm willing to try again. Is anyone who uses bubble tanks got their favourite etchant? or are there any suggestions for a good etchant please?
Camerart.