Applied Duplicolor Self-Etch Metal primer to aluminum where it had been sanded. After cure, wet sanded with 400 grit and then began applying coats of Duplicolor primer filler to both fiberglass and aluminum. The filler didn't do a good job filling and smoothing contours. When it's time to paint for real, it will all have to come off and more epoxy and sanding will be needed. For now, good enough for corrosion protection. I finished up the priming on Christmas Day.
Trim Tab where surface corrosion had been present on skin
