lol, now you should pep the Halo 2 or 3 marine helmet Great work on hte one you have!!!! Way better than my first pep (AR that is so flimsy I can't even hold it)
fiberglass resin is the resin we talk about. You put that on the outside, after that dries put fiberglass mat/cloth on inside and dab some resin over it. The fiberglassing process is what makes it hard. Make sure you wear a respirator, I work in paint and stinky crap all day long and resin still makes me feel like crap if I even just get a whiff of it.