Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Never tried acid etching myself. This might be worth noting:
If your PCB is lying flat in the bottom of the etch container, the disloved copper will leave a film on your PCB. This effectively acts as a barrier between the PCB and etchant. The answer is to agitate the PCB or as mentioned, use something like a paint brush. Also mentioned is highter temperatures which usually speeds up chemical reactions - sometimes to a mad gallop. :-)

Peter
Shetland Islands.

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