Painting a mast
In 1996, I painted my Irwin 31 Citation's aluminum mast and boom Imron beige, matching the new paint for the hull and deck. Although the boat was sold two years ago, it remains in the harbor near my new boat. The mast paint is holding up extremely well although there are spots of corrosion in a few places. Even though Imron is shiny, it has never caused problems of any visible or 'hot to the touch' problems. When painting aluminum, however, be sure to use a zinc chromate primer first-it adds to the cost but is absolutly necessary or the finish coats won't stick. When preparing the mast and boom for painting, I filled the holes and scratches with West system epoxy and micro balloons...there are no problems with it today. Incidentally, all the mast & boom attachments (including spreaders but not blocks or light housings) were also painted Imron beige-it all looks great nine years later. Good luck.