I''m in the process of painting the mast on my Islander 30 as I type. Using International two part Interthane. I''ve done this before on a previous boat (12 years ago) and it still looks like new. It is a tough paint to apply right but the finish is great. The solvents and paints (prime wash, primer and finish) smell real bad. I''ve pretty well finished the boom, mast step and spreaders, starting next week on the 40 ft mast in the garage (keep the doors open through the laundry room and into the workshop!). The paint is expensive as are the thinners. I calculated that the entire paint job will cost be about $300.00. But it is an enormous amount of work. The mast is 25 years old and badly corroded. Lots of sanding and filling, let alone trying to get the stainless fittings off (can you say grinding and drilling?!?) And then while it''s down the wiring will be replaced, the halyards put inside, new lights and new rigging to go with the Harken furler. Lots of fun (and money!). Good luck.