"Ed Huntress" fired this volley in
:


"Maxwell Lol" wrote in message
...
"Ed Huntress" writes:

It appears that hydrochloric reacts noticeably with some glasses but
not others. It will leach out metallic ions from several types of
glass, leaving
a lightly etched, often irridescent surface on the glass.

I've seen pattens in glass what will only appear if you breathe on
the glass - the vapor in your breath causes the image to appear.

Any clues on to the acid to use, and techniques to apply the acid?

If you're asking me, Max, I have no clues. That one sounds pretty
exotic.

If dilute enough, and applied only for a short time, hydrofluoric acid
will lightly enough etch glass so the pattern is only an area of
increased porosity.

Hydrofluoric acid is the standard for glass etching of any depth.

About twenty years ago, I was given a bottle of Glenfiddich Special
Reserve for Christmas. The bottle came in a (metal content!) metal
cylinder, and wrapped in a large tissue with the Glenfiddich Stag emblem
in line-contrast black.


Hmmmm.... (More Metal Content!) My guns were looking for a classier
home, so I transferred the stag to a sheet of glass, along with the
"Glenfiddich Special Reserve" banner around it, and etched it on the
backside of the glass.

Then, of course (no metal here) built a new wooden gun cabinet around the
glass.

Classy... I don't have one, but it looks like it belongs in an old
Winsor manor's den.

LLoyd