Bottom painting requires serious consideration
Greg Pecaut wrote:"Mac's are know for blistering."How many cases are there for qualifying this statement, I have not heard of any myself (except for Chad below with an older classic and fresh water), actually there are more cases to qualify that Macs are known for not blistering in my experience. I trailered my first year, 3 months in a slip the second year, 4 months slip the third year, and this year will be about 5 1/2 months slipped, all without barrier or bottom paint and no problems with blisters so far (Salt water-Pacific Northwest). I can't say the same for marine growth though since I have to pull it out every 4-6 weeks for a pressure wash to get the critters off. This year I am trying Aurora Marine's VS721 bottom wax, they make some pretty substantial claims about it, I'll soon find out if it lives up to the claims. Two years ago I found myself falling victim to the fear mongering of barrier coating so I stopped at the Interlux booth at the Boat Show to inquire about it. The representative there told me that as much as he'd like to sell me on his product, I really did not need it being a trailerable boat with seasonal mooring. He explained that barrier coating was more for boats that would spend years in a slip, not months and that I was likely over-reacting to the barrier coat hype that gets bandied about. So I don't barrier coat, nor do I bottom paint, but I do spend an inordinate amount of time and effort with waxing. Now, if I was to choose the bottom paint route, I would likely barrier coat first since I am already prepared for the big job of bottom painting, might as well go all the way and do the barrier coat too. I have discussed the bottom painting with a few other owners who have bottom paint and they find the maintenance of the bottom paint to be fairly onerous and recommend that if I have not painted yet that I should refrain from doing so (albeit they may not be too familiar with the onerous task of waxing). I can't really say which is the lesser evil, waxing or bottom paint, since I only have experience with waxing, but I would put some serious thought into it before making such final decision, since once you start the paint route you are committed, whereas with waxing the options are still open.