The last time Powerboat Reports ran a comparison test before they went out of business, Collinite Paste wax was rated the most durable. It'll probably last a year since you're so far north, but in S. Fl. it's only good for 6 months at best.
PBR also tested the liquid coatings, and Polyglo beat ALL the waxes by a good margin! It's not cheap . . . last time I checked a kit was about $65, but it's enough to do a 20' boat a couple of times. Not quite as good but still much cheaper than a new urethane paint job! Will make old chalky gel coat look great, last 2-3X longer than wax, and MUCH less work than the wet sanding/compounding/buffing/ wax routine! Other members on here have also used it with good results. I'll never wax again!
|