Forum: PCB Design & Technology Sponge method for etching PCBs?

von Don S. (Company: doole) (excepter)

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When I make PCBs I place the PCB in an etchant bath and agitate the 

I saw a video on line for making PCBs and in the video they poured just 
a small amount of etchant over the PCB and rubbed the board with a 

Has anyone used this method? Does it work?

Seems there would be a lot less waste using this method.

von Dardan (Guest)

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Yes this works very well.
But be carefull, you can simply scratch the protecting mask which is 
over the copper.


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