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Best sterndrive antifouling paint

Old 01-10-2010, 02:23 PM
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Default Best sterndrive antifouling paint

I purchased new Volvo aluminum sterndrives for my boat that resides in the water throughout the year. Marine growth is a never ending problem. Based on THT experiences, what is the best antifouling paint for sterndrives?
Old 01-10-2010, 04:17 PM
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I am bumping this one since the only place I get growth in on my outboard's mounting brackets. Would love to eliminate that.
Old 01-10-2010, 04:21 PM
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Trilux is what most use, but its nowhere near as strong as you'd wish. Even with Trilux, you'll get barnacles and other marine growth.
Old 01-10-2010, 04:22 PM
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I use the interlux trilux outdrive paint (Chesapeake Bay) with good luck if properly applied. In addition, operating the boat at least 1 to 2 times per week is important as well.
Old 01-11-2010, 06:13 AM
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When I heard that the tin based ones were being phased out, I bought every can that West Marine had. Once that was all used up, I switched to Trilux Prop n Drive, which worked pretty well on the drive itself, but the gimbal housing still got a little bit of growth. I miss TBT paint.
Old 01-11-2010, 06:55 AM
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On my 290 legs, I use the same paint on the drives as I do on the bottom..Petit Vivid Free..No more 1" border between drives and paint..And the price per gallon is pretty good...Some of the tough areas to get to, I spray with Trilux...
Old 01-11-2010, 07:49 AM
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Originally Posted by rebel112r View Post
On my 290 legs, I use the same paint on the drives as I do on the bottom..Petit Vivid Free..No more 1" border between drives and paint..And the price per gallon is pretty good...Some of the tough areas to get to, I spray with Trilux...
I know that vivid free is copper & tin free, so what does it use for a biocide?
Old 01-11-2010, 07:57 AM
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I use Trilux in a spray can. I use the entire can on 1 drive. I did not have any barnacle problems, but by July I had a salad on the drive. I cleaned it with a brush and all was well for another month or so, and repeat the brushing.
Old 01-11-2010, 08:34 PM
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I read on the back of the can of Trilux 33 that it has tin and they recommend it for aluminum drives. West Marine also had an aerosol can of something called Trilux Prop & Drive. The application instructions said not to use it with tin based paints like Trilux 33. I'm not sure which products will be most effective. One responder said he got good results with Petitt Vivid free on his 290 legs. I never thought of using that, but it's good info.
Old 01-12-2010, 04:14 AM
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Originally Posted by LarryGaddis View Post
I purchased new Volvo aluminum sterndrives for my boat that resides in the water throughout the year. Marine growth is a never ending problem. Based on THT experiences, what is the best antifouling paint for sterndrives?


I have been using Aquagard Alumnigard II on my drive with good results.
Old 01-12-2010, 05:57 AM
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I have not had success with Trilux spray. I hear that the 33 works well. It runs about 80 bucks a quart though.
Old 01-12-2010, 06:05 AM
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Whatever you use don't use Aquaguard. I used the clear on my Yami brackets. Terrible results. I complained to the company and they sent me a complimentary can. Applied that and the results were not much better.

I'll be using the Interlux product this spring !
Old 01-12-2010, 06:26 AM
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I bought a quart of trilux 33 and it has lasted 3 seasons for two drives. Mine and a friends. Brush it on and get much better results than the spray can.

The best price around and free shipping

http://www.wholesalemarine.com/pc/IL...tom+Paint.html
Old 01-12-2010, 10:24 AM
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I would be thrilled if my drives stayed barnacle free for three years. Did you apply Trilux 33 with primer first? Also, did you apply over the drive's factory paint? Some recommend sanding down to bare aluminum first which is extremely difficult.
Old 01-12-2010, 11:58 AM
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Originally Posted by BW23 View Post
Whatever you use don't use Aquaguard. I used the clear on my Yami brackets. Terrible results. I complained to the company and they sent me a complimentary can. Applied that and the results were not much better.

I'll be using the Interlux product this spring !



I used the Black in a quart and I brushed on two coats
Old 01-12-2010, 12:47 PM
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Originally Posted by LarryGaddis View Post
I would be thrilled if my drives stayed barnacle free for three years. Did you apply Trilux 33 with primer first? Also, did you apply over the drive's factory paint? Some recommend sanding down to bare aluminum first which is extremely difficult.
Keep in mind he problably hauls his boat out for winter every year, no paint on the market will let you sit in the water for three years with no growth. I think he meant the quart lasts for 3 repaints.
Old 01-12-2010, 06:54 PM
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Originally Posted by PMaine View Post
Keep in mind he problably hauls his boat out for winter every year, no paint on the market will let you sit in the water for three years with no growth. I think he meant the quart lasts for 3 repaints.

You are right.

What I meant was the quart lasted three years. I recoated the drive every spring. I scuffed the drive with a scothbrite pad and painted. No primer. You do not want to go to bare aluminum as you would remove the factory paint and that is the best coating you can get. I removed the boat and powerwashed the drive and all the chit came off. No barnacles. Just slime. I scrub the drive in the spring and recoated. It is an ablative and you can haul and relaunch without problem.

Don't listen to all the people about the sterndrive melting like a lolipop in salt. Mine is ten years old in the water 9 months a year and shows no corrosion at all. Keep up on anodes mercathode if Equipped No stray current from shore power and your drive will outlast the motor. i average 300 hours a year and have not had a single problem due to the dreaded sterndrive in salt water. Most of the horror stories come from lack of maintinence. Also from my friends brothers uncles third cousin twice removed heard of a guy with a sterndrive that melted in four hours of salt water.
Old 01-19-2010, 08:50 AM
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If you are looking at Petit Vivid, remember that there is Petit Vivid, and Petit Vivid Free..
Old 01-24-2010, 08:04 AM
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Trilux on mine too.
I get growth/grunge on the trim tabs.
I brush it off and run it WOT at least once a week, even when there is skim ice on the water.
Old 12-14-2010, 07:56 AM
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Last season I use the trilux spray can. I followed the directions and put two full cans of this stuff over a properly cleaned and painted outdrive. Boat was in the water for 6 months. I dove down on it mid season and had to scrape some crud off. Most of the drive was fairly clean but I did get barnacles in low-flow areas and nooks and crannies. There were more than I liked. At the end of the season there was again more growth. It was not really bad but the boat bottom itself was really clean but the drive and tabs had more barnacles and growth than I can tolorate.

I am going to move away from the spray can and take the drive off and really prep it well and coat with several coast of the the interlux 2000 epoxy primer and then paint it black with Trilux 33 . I will use the clear spray to hit the bellows and paces I can't get to with a brush. We will see how it goes. I plan to do the same thing on the SS tabs. We shall see. I miss TBT, that stuff actually worked.

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