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Subject: Re: Best method for 2oz copper on 1/16" boards?

From: "warrenbrayshaw" <warrenbrayshaw@...>
Date: 2007-04-03

--- In Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@...> wrote:
>
>
> "d1camero" <a8723@...> writes:
> > Phil, thanks for the info. Good idea about the sandwich - I think I
> > will try that!
>
> Beware that epoxy softens when heated. If that's an issue, use
> something like J.B.Weld, which is more heat tolerant.
>

The MSDS (Material Safety Data Sheets) for J-B WELD shows that there is
10-20% iron powder in the resin and hardner. Perhaps this would not be
a good
choice for laminating PCB material with the chance of a short via the
adhesive layer.

http://jbweld.net/techinfo/index.php