[Noisebridge-discuss] soldering copper sheet metal

Cere Davis ceremona at gmail.com
Sun Nov 1 03:08:37 UTC 2015


So ur just trying to solder copper to copper?
On Oct 25, 2015 4:37 PM, "jim" <jim at well.com> wrote:

>
>     I've soldered electronics and plumbing and
> am stuck trying to solder copper sheet metal.
> I've used a soldering iron and a propane torch.
> I've used alcohol, acetone, and paint thinner
> to clean the copper as well as fine and coarse
> sandpaper to clean the surfaces. I'm using
> electronic flux (haven't yet tried plumbing
> flux).
>     The soldering is not working: solder does
> not flow or adhere to the copper, and there's
> a brown residue that appears after heating.
> Using a torch for forty or fifty seconds
> results in flame that does not immediately
> expire.
>
>     Anybody got tips?
>
>
>
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