: Hmm, let's see... it's glass... just like the stuff that's been in
: buildings for three hundred years.... (longer in EurAsia)...
: eventually, it'll slink down into a puddle... after all glass is
: a supercooled liquid... but that'll be oh, fifty thousand
: years... I think you'll be ok with it

The glass itself will be fine, but it's got to be kept clean. If it's clean it'll be fine.

Bill H.