After the proseal set up, the bond wasn't as strong as I would have liked. Proseal is not an adhesive, and having this come off and potentially jam control surfaces would be a really bad thing. I mixed up some epoxy and flox and put a nice substantial fillet on the interior. On the outside, I used epoxy and micro to make a thick paste. This is sanded down back almost to the aluminum on the middle and flared out on the sides to match the original contour.