Yes, the material is called Armour Etch Glass Etching Cream, and it
works nicely, etching a very fine surface. It is a bit expensive, on
the order of $25 for a 24oz bottle, but you could etch several large
piece of glass with this amount. Armour Etch appears to be readily
available as I have found it at several places, including hobby
stores and arts/craft stores. I have not seen it at Wal-Mart, though
it may be available in those stores at some locations.
To use, first clean your glass well and allow it to dry. Apply the
etching cream with a brush as per the directions, brushing on first
on one dimension, then on the other. Apply a very thick coating.
Allow 10-15 minutes for the etch to work, then remove it with a scrub
brush and running water and try to remove all of the cream as quickly
as possible to avoid streaking.
If the surface shows any streaking after washing and drying, repeat
the procedures.
Work with gloves to keep the hydrofluoric acid from your skin.
Works very well for making fine ground glass.
Sandy King
>This note is for the earlier question about ground glass and producing an
>acceptable surface.
>There is a product used to etch patterns on glass sold at most arts/craft
>stores and I've seen it at Wal-Mart. I think it's called Armour-Etch and
>know that it wouldn't cost much and very little work! I've seen the surface
>that it makes and it's fine and smooth though I've not tried it to see how
>well it would produce an image in the camera.
>Jim
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