On 21/03/2012 14:03,
kabowers@... wrote:
>
> On Wed, 21 Mar 2012 05:47:59 -0400, you wrote:
>
> >There is a bit of a misquote there. I do not glue my bubblers to the
> tank.
> >
> >I use "Bubble Wall," which is made by Penn-Plax, Hauppauge, NY, USA
> (www.pennplax.com). They are a lot smaller than a soaker hose.
> >
> >John
> > ----- Original Message -----
> > From: Bert Van Kets
> > To: Homebrew_PCBs@yahoogroups.com
> <mailto:Homebrew_PCBs%40yahoogroups.com>
> > Sent: Wednesday, March 21, 2012 3:37 AM
> > Subject: Re: [Homebrew_PCBs] Re: Rejuvenating ferric chloride etchants
> >
> >
> >
> > On 20/03/2012 19:51, sheldon_mp_cooper wrote:
> > >
> > > --- In Homebrew_PCBs@yahoogroups.com
> <mailto:Homebrew_PCBs%40yahoogroups.com>
> > > <mailto:Homebrew_PCBs%40yahoogroups.com>, Philip Pemberton
> > >
> Years ago I used aquarium aerators in FeCl with good results. I suspended
> the board over the liquid such that the bubbles/foam washed over the
> face of the board. Etched really quickly with nice sharp edges.
>
> When I started with CuCl I purchased an aerator from WalMart
> and the CuCl immediately turned it into a pile of sand 8=(.
>
> Keith Bowers WB4LSJ- Thomasville, NC
>
>
Some glues won't withstand the acids.
You can use any porous material though. I have used bits of balsa wood
as an aerator. Other woods are bound to work well too as long as they
are very light and have an open structure. Worst case you can use a bit
of sponge and a rubber band.
Bert
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