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Boat Forum / Building / June 2008Aluminum bottom anti fouling
I have a small aluminum boat that I use to get from my half tide dock to my mooring. When the summer rains are heavy and a lot of fresh water is flowing into the harbor (north Atlantic) the slime build up on the bottom can reach 1-1/2 inches thick. I'm looking for an anti fouling paint that can be applied to the aluminum boat that doesn't cost more than the boat. By the time I buy Interlux' or Pettit's Cleaner, Primer and Paint I'll spend at least 2x what the boat cost. Any suggestions would be appreciated. Boden > Any suggestions would be appreciated. > > Boden Could you use a piece of coarse rope and run it from front to back ? No idea if it would work . > I have a small aluminum boat that I use to get from my half tide dock to > my mooring. When the summer rains are heavy and a lot of fresh water is [quoted text clipped - 9 lines] > > Boden Maybe some teflon (tm) powder added to some enamel paint???? A $40 experiment... paul oman progressive epoxy polymers inc >> I have a small aluminum boat that I use to get from my half tide dock to >> my mooring. When the summer rains are heavy and a lot of fresh water is [quoted text clipped - 15 lines] >paul oman >progressive epoxy polymers inc Paul's outfit also sells coated copper powder at $15/ lb. He may not have mentioned it from fears of electrolytic corrosion. It's fair to say however, that copper is THE marine growth inihibitor - maybe it's outlawed because it can be toxic to useful marine life too??? Brian W I am assuming you cannot flip the dink on the halftide dock. Right? Den 48YF http://www.densnet.com > >> I have a small aluminum boat that I use to get from my half tide dock to > >> my mooring. When the summer rains are heavy and a lot of fresh water is [quoted text clipped - 23 lines] > > Brian W Copper is a no no on an aluminum bottom. Electrolosys will eat the bottom away. I tried some on an aluminum lower unit of an outboard once and it almost destroyed the outboard. >> Paul's outfit also sells coated copper powder at $15/ lb. >> He may not have mentioned it from fears of electrolytic corrosion. [quoted text clipped - 7 lines] >bottom away. I tried some on an aluminum lower unit of an outboard >once and it almost destroyed the outboard. Yep, I can see that. Paul's stuff is apparently coated, so to get the marine growth inhibitor action, you have to scuff the surface, so it is just possible it might work out.... Brian W >> I have a small aluminum boat that I use to get from my half tide dock >> to my mooring. When the summer rains are heavy and a lot of fresh [quoted text clipped - 15 lines] > paul oman > progressive epoxy polymers inc What about a barrier layer of 2 or 3 coats of epoxy paint and a final coating of an admixture of a paint (epoxy?) and copper powder as suggested by Brian? Boden > I have a small aluminum boat that I use to get from my half tide dock to > my mooring. When the summer rains are heavy and a lot of fresh water is [quoted text clipped - 9 lines] > > Boden EPaint is a bottom paint that is made with a Biocide instead of metal so it is compatible with aluminum. I have a bunch of it that I bought for my boat and I have a surplus of it that I sell for $75 a gallon. The regular price on this stuff is $200 a gallon. But I live in South Texas and it is pick up only as the Post Office wont handle it. >I have a small aluminum boat that I use to get from my half tide dock to >my mooring. When the summer rains are heavy and a lot of fresh water is [quoted text clipped - 7 lines] > >Any suggestions would be appreciated. Creosote? Casady If you use copper on an aluminum boat, you can run your radio and other things off the electricity it produces while it is eating your boat away. Because you just made a battery! > I have a small aluminum boat that I use to get from my half tide dock to > my mooring. When the summer rains are heavy and a lot of fresh water is [quoted text clipped - 9 lines] > > Boden > I have a small aluminum boat that I use to get from my half tide dock to > my mooring. When the summer rains are heavy and a lot of fresh water is [quoted text clipped - 9 lines] > > Boden Pull it out of the water onto the dock. Hoist it out of the water on davits. Pull it out of the water and turn it over and scrub it off every two weeks. Wax the bottom. (But you can't paint it after) Use a rattle can and spray paint it with aluminum primer and then a cheap shiny aluminum paint so the crud can't get a grip. Just thinking out loud. |
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