Have you ever wondered why, not even the best boats are built as one piece?
I have. I'm not saying there's not a good arguement for epoxying it together, I just can't think of one. If there was no other way to seal it effectively, that would be a good reason, but that's not the case.
thanks Joe, and i hear you... it'd definitely be less risky/stressful.
there are a couple reasons i've been leaning toward epoxy: full cure and strength.
first, the poor fit of the deck to the hull in my boat, especially at the stern corners where there is quite a span to be filled, means i'll be filling to a much greater depth than the 1/8" recommended by 3M for full cure of 42/5200... and that's the crux i guess... don't want to stretch the applicability threshold of the material just because it's easy... if the material stays soft over the long term due to non-cure, then you've got a situation where there's no adhesive qualities, and you've just got high-priced, uncured caulk spanning a greater distance than it was designed to... and in this condition does it seal around the rubrail fasteners adequately? of course, if the joint had a nice tight tolerance where you could get the rims of the deck and hull to meet firmly around the whole joint, then it'd be a no-brainer.
secondly, from what i've read, i figured a quality epoxy will make the joint, properly prepared of course, the strongest it could possibly be- with tensile strength of the epoxy adhesion in the neighborhood of 2000psi, the shear strength even greater, the original deck or hull layup would probably give before the joint... and that's before the rubrail bolts even get stressed. the tentative plan is to use west system with the high-density filler.
and oh yeah, no matter how i join it, i'm never, ever, ever, separating this boat again... i'll be moving up to another boat before that urge strikes.
as far as why boats aren't made as one piece, i've always taken that as more of a practicality/cost of construction rather than a design enhancement issue.
good article: (sorry wouldn't link properly)