Guys, I am not an expert with Fiberglass and epoxy resins so I need some help.

Is there a difference between Polyester Epoxy and West System Epoxy? I thought I read that Polyester is the "stinky" stuff and West System-that I use, has very little odor so it is different.

What is the Epoxy - 5 minute and 30 minute sold at the LHS or stores?

My main question is - if my fuselage was constructed with Polyester Epoxy will the "regular" LHS 5 and 30 minute Epoxy and West System Epoxy and fiberglass work okay or do I need to use a special epoxy?

Thanks for your help

Keith