Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...> wrote:
> 
> --- In Homebrew_PCBs@yahoogroups.com, "Leon Heller" <leon.heller@d...>
> wrote:
> > Some of the low-cost bubble etching tanks are made from PVC.
> 
> I have had some long conversations with my local plastics guy over the
> past few days, and he tells me that lexan, plexiglas, polycarbonate
> are not good in constant contact with chemicals.
> 
> That PVC and it's variants, and styrene have good water, alcohol, and
> chemical resistance.

And the best methods to making them watertight are welding or the
appropriate solvent based cement.

Steve Greenfield