Homebrew PCBs

Leslie Newell wrote:
 >
 > The last place I worked at used to have a tank made of glass glued with
 > silicone. This technique is very common on fish tanks and they seldom
 > leak. Unfortunately after a couple of years the acid weakened the
 > silicone. One night it collapsed, dumping at least a gallon of etchant
 > on the floor. The room below now has a big yellow/brown stain on the
 > ceiling that no amount of paint will cover up.
 >
 > Les
 >
 > Andrew wrote:
 > > Those tanks are actually molded from two peices and
 > > glued together. I have had several over the years.
 > >
 > > Some HAVE leaked at the glue seam. Now I am using
 > > an acid based etchant the latest tank I have is
 > > developing crazing and slow leaks in the walls.
 > >
 > > I do store it ALL in a large HDPE box though so
 > > leaks are not catastrphic.
 > >

Glad to know this as I was thinking about the home made custom aquarium 
tank.
Thanks,
Dave