Thanks for responding. This is what I was needing to know. I am wanting
to give it a try on small items just for fun. I was planning on getting
a small blasting cabinet for it. I thought the dust would be contained
but probably not. So it will become a backyard thing to do. With a
dustmask, that works.

Do you have any experience with the glass etching goo sold in craft stores?

wrote:
I've done a little glass blasting-- I used the fine sand-- Masked the
glass off with three or four sheets of plastic shelf liner & used a
knife to cut my design. With sand blasting, make sure you use a booth
for the blasting & do it in a well ventilated area with dust mask--
(read the warnings on the sand bag) The silica dust is REALLY bad for
you-- The glass I did this on was red flashed glass ( red on one side)
-- worked really well & left a frosty surface.