: I suspect that you're correct. Commercial manufacturers that make
: laminated products using epoxy typically "post-cure"
: them at temps over 100 degrees, which increases the strength of
: the epoxy considerably. Given that, it makes sense that lower
: temps would produce lower strength. It can also dramatically
: increase curing times, pushing them out to weeks or even months
: for a full cure.

One gunwale had a bit of twist because the cut parallel to the chine wasn't perfect (happens with students). Once the clamp was removed it held for an hour or so then let loose. Suspect if the joint had been allowed to cure longer it would have held fine, but there are time considerations with a class.

Glued it today with 5 min. epoxy but the fabric was holding it pretty securely. The second joint that failed I couldn't pry apart with a screwdriver, the fabric held it "that" tight. Once the deck is installed the epoxy is pretty much not needed, which happens tomorrow.

Bill H.