JB weld safe for pipe?

[dr.sativas.patient]

I have used TFSE, but without much success on this subject. I currently do not have money to spend on a bong or pipe, however i have the means to make one. I have several glass pieces that would make an effective pipe, and some jb weld. JB weld is supposed to be heat resistant up to about 500*F, and also non toxic. Would this work for constructing a pipe? Or is there a better heat-resistant epoxy that I have not discovered yet?