I read up on this already since my cats knocked my over and it cracked and broke where the slide goes in. I heard super glue then I heard it can release bad vapors if its heated up. I've heard that it generally means game over once its broke.
you can use glue, but yea like dude said, if its where it can heat up? dont use it if its china, game over if its good glass, take it to a local head shop and see if they can help you. i mean, ask them first at least hahaha dont take a dirty bong to a headshop but ive seen people glue bongs back together, but it wasnt anywhere near the slide