Fiberglass is stronger, but I have 2 coats of truck bed liner under the 6 coats of epoxy and all internal corners are slightly rounded so I don't think the fiberglass was neccessary.If I was to do it over again I would fiberglass the inside, at least in the corners.b-man said:hey Guinness
can you post some info on the epoxy your using? i'm debating a lil project for myself. its a toss up between epoxy and fiberglass. both of which i have no experience with either