[KenB]

I agree with shrimp but I think there is some 1708 that is more malleable, which might work with epoxy.

My plan is to coat the back of whatever poly I plan to cover with epoxy first before laying down mat and resin... I think epoxy with less that a few days of cure will bond to fresh resin. (old poly bonds to epoxy, which bonds to new resin... old epoxy will not bond to new resin...right?)

Dumb idea? Only one way to find out!