I used 5200 for two applications. The bulkhead bead shrunk, cracked and leaked, but a second application fixed the problem. I glued on a "temporary" skeg with it also, and it worked well. In fact, that was 3 years ago, and it's impossible to remove now without a chisel. However, neither of those applications has any force on it for long periods of time. So I would say it's fine for bulkheads, but I wouldn't trust it under the force of bungee cords, straps or other hatch closure devices.

: Has anyone out there had any expearience with marine sealants like 3M 5200 or
: similar?

: On the back of the tube it says it is a permanent polyurathane glue that
: dries rock hard but apparently does not foam up like gorilla glue, you can
: lay down a bead and it stays that way.

: My quandry is this; my boat is almost finished, I`m almost out of epoxy, and
: I have yet to glue in the hatch lips and bulkheads.
: Is there any reason not to use some kind of glue in these areas instead of
: the much more expensive epoxy?