It depends....
There are several factors to consider:a) will the boat be mostly in the water or on the trailer?b) will you be in fresh water or salt?c) how much do you want to spend?The best bet for all-round use seems to be Micron CSC, although there a lot of people (myself included) who use VC17 and there is a wide variety of other paints, depending on your answer to a). I would suggest that you go through the archives, as this subject has been discussed several times in the past. I would also suggest that you consider a barrier coat before the antifouling, if your boat is going to be in the water most of the time. Good luck!PeterS/V Raven