When I bought the boat, it came with a “keel smile” right at the joint between the iron keel and the fiberglass hull. Fearing that water may have accumulated inside the hull, I drilled a hole into the starboard side. It was dry. That was a relief.
The first step was to grind out the cracks all the way down to the iron. I created a deep V and then slowly filled it with TotalBoat’s ThixoFlex Epoxy Adhesive, layer by layer. I then used TotalBoat’s TotalFair Epoxy Fairing to finish out the fill and smooth out the entire keel.