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Old 02-05-2011, 07:44   #1
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Antifoul Paint

Greetings esteemed forum members!

I need to re-do the anti foul paint of my 40ft Fountaine Pajot (Lavezzi). I pretend to apply 1 sealant/primer and then 3 layers of paint. Question: for this size of Cat, how much gallons of paint would i need (or how much sq meters is the underwater line?)

Thank you very much,
Fair winds

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Old 02-05-2011, 07:53   #2
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Re: Antifoul paint

Pieter hi,

Not sure how much paint you will need, but the manufacturers tend to give guidelines on there websites.

However, if the hull has already been antifouled and the new paint is compatable with the old why the barrier layer? also why 3 layers, won't 2 good coats do? again worth reading the wedsites. It would save an awful lot of work and some money

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Old 02-05-2011, 20:54   #3
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Re: Antifoul paint

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Pieter hi,

Not sure how much paint you will need, but the manufacturers tend to give guidelines on there websites.

However, if the hull has already been antifouled and the new paint is compatable with the old why the barrier layer? also why 3 layers, won't 2 good coats do? again worth reading the wedsites. It would save an awful lot of work and some money

Pete
Thanks Pete for yr comments. As i dont know if the new antifoul paint will be competible, and on some spots the paint has totally gone, i decided to paint with primer first, and i guess you are right on the 2 layers instead of 3. Thanks for the return and all the best
Pieter
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Old 02-05-2011, 21:00   #4
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Re: Antifoul paint

You could contact Interlux or visit their website. I believe they have a formula to calculate the amount of paint you'll need.

Oh, and they can help you select a paint that will be compatable with your current paint.
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Old 02-05-2011, 22:49   #5
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Re: Antifoul paint

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I pretend to apply 1 sealant/primer and then 3 layers of paint. Question: for this size of Cat, how much gallons of paint would i need (or how much sq meters is the underwater line?)
www.luminacharters.com.br
Three layers of antifoul over a layer of sealant?

Overkill.
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Old 03-05-2011, 04:15   #6
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Re: Antifoul Paint

Be sure to also check how long to stir or mix the paint. This season was the first time we painted the bottom ourselves and the first coat was not mixed as well as it should have been. Fortunately according to the manufacturer (Pettit) we don't have to resand just go over it again but I don't have confidence the first coat will do it's job.
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Old 03-05-2011, 04:23   #7
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Re: Antifoul Paint

I have a 10.85 metre cat and I use 10 litres for two coats (Altex #5) that gives me a fair bit extra to give the rudders and minikeels an extra coat as well as the leading edge of the bows.

Totally off topic, anyone else bemused by the fact the French boats come from the home of the metric system but still use feet, must say something about selling into USA I suppose
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Old 03-05-2011, 06:29   #8
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Re: Antifoul Paint

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I have a 10.85 metre cat and I use 10 litres for two coats (Altex #5) that gives me a fair bit extra to give the rudders and minikeels an extra coat as well as the leading edge of the bows.

Totally off topic, anyone else bemused by the fact the French boats come from the home of the metric system but still use feet, must say something about selling into USA I suppose
44ft sounds much bigger than 13 point something metres. The French aren't stupid!

Just used 4 gallons of Island 44 for two coats on a Privilege 435.
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Old 03-05-2011, 06:48   #9
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Re: Antifoul Paint

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44ft sounds much bigger than 13 point something metres. The French aren't stupid!

Just used 4 gallons of Island 44 for two coats on a Privilege 435.
They may not be stupid but they cant read a tape measure, the Orana 44 is in fact a 43 foot long boat. But back on topic your use of 18 litres on that size boat seems to roughly fit in with my usage. It would appear that our OP may have an answer
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Old 03-05-2011, 11:58   #10
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Re: Antifoul Paint

Funnily enough my 435 is 44 ft and the 465 Privilege is 'usually' 49ft. I say usually because there asre a few basic 465s around that are 46 ft but the majority of them are the Easy Cruise version which is 49ft
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Old 12-05-2011, 16:40   #11
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Re: Antifoul Paint

Great info, and thanks a lot for the input... Overhere, the toppic of antifoul painting is usualy covered with mystique and a lot of people have their own secret (?) mixture... I decided on using Renner antifoul paint, bought three gallons, wont do the primer, as i know that in our waters i will have to beach my FP next year anyhow for a new paint... Thanks and best rgds
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Old 13-05-2011, 04:50   #12
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Re: Antifoul Paint

Down this way most of the boat owners put in half a cup of roundup (weed killer) into the anti foul; it stops barnacles in their tracks. One guy dud it as a test, used roundup on half the hull. Had to haul out to scrape down half of his boat! Should have done the whole lot and just measured growth over time.
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Old 13-05-2011, 05:01   #13
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Re: Antifoul Paint

Does round up dissolve okay in an oil paint?

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Old 13-05-2011, 05:13   #14
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Re: Antifoul Paint

Good question, it certainly must I would assume. You are talking about a very small amount, certainly worth testing. The greenies wouldn't be happy if they knew people were doing it.
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Old 13-05-2011, 05:17   #15
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Re: Antifoul Paint

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Good question, it certainly must I would assume. You are talking about a very small amount, certainly worth testing. The greenies wouldn't be happy if they knew people were doing it.
--but the undertakers will!!

Round-up, used on weeds, made a friend of mine very ill from inhalation.
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