There's a test the Gov labs do to a honeycomb laminate
called the Peal-ply test ; they glue one side down, and
measure how much force it takes to remove the exposed side
from the honeycomb panel. Optimum skin weight for peal resistance
is 10oz skin or better. Adding more thickened epoxy
to disperse the energy to the cell walls, will add more weight.

I totally trust my Exxtacy to Not De-laminate while
i'm flying. But if it's Water i'm asking the honeycomb
to deal with than i'd keep the lamination width limited
to 1 inch strips to isolate the tears in a De-lam panel.

Remember they use honeycomb in the fins of Very high
speed rockets and also in some fighter-jet structures, and
it holds up Well ; i would Never trust my life to the stuff
on a boat , unless special precautions were utilized !!!

Bille