For sailing in Lake Superior, your fouling is minimal, compared to other waters, and you probably spend more time sitting on boat stands then you do in the water. With different technologies, there are different methods. You don't need a high dollar, high copper load for your boat. First, cruiser or performance is the first question. If you paint with a hard paint, you don't need the top of the line. Something with 40% copper oxide should cover all your needs for multiple years. Boats in Lake Superior are getting on average 3 years with value priced hard paints before having to recoat. On a hard paint, after winter storage, scrub the surface with a scotchbrite pad to open up the surface of the film. All boats that sit on stands for 6 months during winter, and paints that have copper OXIDE in them, seal up. So on a hard paint, you must scuff with scotchbrite pad. On a Ablative type paint, a hose with a stiff bristle brush should get you going. There is a great article from Powerboat reports, (I know) that tested all brands of antifouling paint in Lake Erie this past year. Even though it was powerboat reports, and not practical sailor, the test was performed with all brands of antifouling paint, and all types, from hard, ablative, performance, etc.
If you recoat every year, you are putting on too much paint. So, if you are painting every year, at least use an ablative. You can probably get minimum 2, possibly 3 years out of a recoat in your waters, for the short time the boat is in the water.
If the boat goes into saltwater during winter doldrums of the midwest, then you have a different scenario all together.
Do NOT use Micron 66 in fresh water. It seals up and becomes ineffective. Interlux sells a lot of Micron Extra, and Micron CSC for ablative in the great lakes. They sell a lot of Fiberglass Bottomkote for Hard. And of course VC17 Extra.
Pettit sells a lot of Vivid, for hybrid. For Hard we sell a lot of Unepoxy. For ablative, Hydrocoat, or Ultima SR. For performance, SR21.
Paint technologies are changing everyday, so always look at new effective, green, performance based coatings. Every water is different, every need is different.
Does that confuse it even more?
Pettit Marine Paint
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