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Old 18-09-2013, 08:50   #1
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Do i really need antifoul paint ?

I have a hookah dive system, that I use to clean the hull and change anodes , i clean the hull every month or so and change anodes each year underwater.

I have not applied antifoul paint for two years now and I was getting round to paying for a lift out to do this when I got to thinking WHY!?

OK the antifoul on the hull now is more or less shot, but as i am cruising in warm waters, a quick trip over the side each month is no problem.

I think it is force of habit making me think of lifting her, afterall, all antifoul does is try to keep the beasts and weed away, its not as if it is a barrier coat, right?

We live aboard full time, so the saving if i do not bother painting her is not insignificant.

Am I mising something? Or does this sound like a good plan?

Charlie.
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Old 18-09-2013, 09:01   #2
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Re: Do i really need antifoul paint ?

When your monthly dip fails to keep up with the growth that you see accumulating, then it's time to yank her out & give her a fresh coat. In the mean time, ride the old bottom paint for as long as it serves your purpose. At least that is my opinion.
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Old 18-09-2013, 09:01   #3
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You'll need to scrub closer to weekly as the paint really dies
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Old 18-09-2013, 09:07   #4
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Re: Do i really need antifoul paint ?

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You'll need to scrub closer to weekly as the paint really dies
Yup. In three weeks I had a solid ring of barnacles.

To the thread starter, I think you'd need to do it every week.
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Old 18-09-2013, 09:11   #5
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Re: Do i really need antifoul paint ?

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...does this sound like a good plan?
No, it does not sound like a good plan.
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Old 18-09-2013, 09:15   #6
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Re: Do i really need antifoul paint ?

Quote:
Originally Posted by Sulaire View Post
I have a hookah dive system, that I use to clean the hull and change anodes , i clean the hull every month or so and change anodes each year underwater.

I have not applied antifoul paint for two years now and I was getting round to paying for a lift out to do this when I got to thinking WHY!?

OK the antifoul on the hull now is more or less shot, but as i am cruising in warm waters, a quick trip over the side each month is no problem.

I think it is force of habit making me think of lifting her, afterall, all antifoul does is try to keep the beasts and weed away, its not as if it is a barrier coat, right?

We live aboard full time, so the saving if i do not bother painting her is not insignificant.

Am I mising something? Or does this sound like a good plan?

Charlie.
I have often pondered the same thing. Todays AF paint works very slowly and doesnt really stop the growth. The barnacles die once they reach 1/4 to 3/8 diameter.. but they are still stuck to the hull. Brand new Trinidad AF became so covered in barnacles in the DR after sitting 4 weeks (3 months since new) that it took most of a whole day to remove them to leave.
I really wonder if AF is worth it anymore... use the money to pay a diver. In some places you are going to have to clean more often than monthly though!
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Old 18-09-2013, 09:24   #7
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Re: Do i really need antifoul paint ?

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I really wonder if AF is worth it anymore... use the money to pay a diver. In some places you are going to have to clean more often than monthly though!
I will not speak for anywhere other than California, but I know from personal experience that boats with no, or ineffective, anti fouling paint become essentially uncleanable within a short period of time. You literally can't clean them often enough to keep ahead of the growth.

I will say with certainty that boats that live in saltwater (regardless of where in the world that is) need anti fouling paint.
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Old 18-09-2013, 09:24   #8
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Yep, sometimes each month is just a quick brush over with a scrubbing pad, but other times the scraper is required!

Last time was surreal , i got us into an anchorage with 0.5m under the keel in white sand and water clear as gin and stood on the bottom, cleaning away quite happily. A school of fish hovered over my shoulder grabbing any tasty bits!!

If it was always like that, then i would take it up as a hobby!!

C.
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Old 18-09-2013, 19:21   #9
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Re: Do i really need antifoul paint ?

I think a monthly scrub is a minimum when the paint is gone.

b.
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Old 18-09-2013, 21:06   #10
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Re: Do i really need antifoul paint ?

I had my boat in water for four summers and three winters. NE USA. Starting third summer I had to dive every three weeks, forth summer, I had to dive every two weeks to keep the bottom in somewhat sailable condition.
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Old 18-09-2013, 21:11   #11
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Re: Do i really need antifoul paint ?

cheechako - i've been using pettit trinidad for the past twenty plus years here in florida/bahamas and have gotten 3 to 4 years easily, and that's without bottom scrubbing. not sure why your results were so much worse in the DR.
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Old 19-09-2013, 00:33   #12
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Thanks for all the advice, i will get another couple of layers of paint on her early next year and see how long I can last, by scrubbing when it needs, hopefully 2or 3 years.!

When I was in the usa, trinidad impressed me alot. When i got the boat back to the uk and med ( where we are now) , i could not source it. Wish I had bought an extra few cans!

Charlie.
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