Re: How to patch keel before applying abalative paint?
You can also mix epoxy with fumed silica or Cabosil, wood flour or simply chop up some fiberglass & mix it for a structural repair. If you go with chopped up some fiberglass you still might want to add a little fumed silica to the mix. You want to end up with a peanut butter like consistency & really mix the epoxy well. When you think it's mixed enough mix it some more. A handy product that I've had good results is Fiber Glass Coatings Superbond Epoxy. It's already thickened & is easy to use.