I am going to restore an old Hobie 16. One of the tasks I have set myself to is to paint the hulls. While I was sanding the first one I discovered some cracks on one of them. They are located on the straight end of the lip where the lower hull joins the decks. The damage is in the white, chalky material sandwiched between the fiberglass of the hull and the fiberglass of the deck.

Of course, before moving on, I'd like to repair those cracks. I was wondering what material I should use to fill those cracks. My first guess was epoxy, but I'm not sure.

Any advice from you all? Let me know if I need to clarify.

H77