Pettit Zinc Paint. The zincs are all in such great shape that we did not have to replace any before the boat was launched. And in the marina we are in, this is a good testament to the electrical work we have done inside the boat. I don't expect a lot from this paint, although there have been many at the yard that swear it works very well. We will have to wait until next fall to see, but after the total failure of the HawkSpeed we applied last season (we are still waiting to hear from the manufacturer), we figure it can't be a whole lot worse. The Chesapeake will also be a good testing ground for the ablative paint.