Roger Long wrote:
I just did a quick search for information on secondary bonds. I don't
know how authoratitive the one site I saw is but it quoted 2000 psi for
epoxy on old polyester. New polyester itself was only quoted at 500.
So, 10 square inches could lift the boat except that the polyester would
give up first. It would have taken 40 square inches, 6.32 inches on a
side, to lift her the way she was built originally. I'm sure it's not
that good in practice but even if it's way, way, off....

2000 psi is about the right ballpark for epoxy in shear. My concern
is that the tabbing is probably compromised by the damage. If the
tabbbing just mostly peeled, it might be o.k. If it was my boat I'd
probably take a grinder to the tabbing and re-do it with biaxial and
epoxy.

It took me about a week to redo ALL the tabbing on my last boat, a 30'
mono with a lot of lockers and compartments. It was not that big a job.

Evan Gatehouse