Mikkel C. Simonsen wrote:
Ross Matheson wrote:

: I don't know how you could possibly re-use it, but scortching it hard
: and fast with a blowtorch will make the traces easy to peel off. The
: real trick will be applying new traces.

Thanks Kevin - I don't want to apply new traces. I want to re-use it with
inserted rivet-tags (for want of a better word to describe them - I've
scored a ~500ml jar full of silver-plated double-tag eyelet things) or
turrets, in my own pattern of holes, afterward. With heat, I'd want enough
to just loosen the traces (which may be thick enough to "peel") but not
scorch the board. I may try a heatgun first, and if that fails, use etchant.
Obviously the heat method would be *far* cheaper:=})


Cheaper? In money perhaps, but not in time. Ferric cloride (or whatever
it's called in English) is very cheap.

Another option, not quite as cheap as ferric chloride (but a lot less
messy) is ammonium persulphate. It's what I use when I need to make PC
boards.

When using either reagent, the process is greatly accelerated if the
etchant bath is heated to around 60 Celsius.

Cheers,
Fred

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