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Old 28-10-2013, 14:38   #1
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Bottom Paint Questions

I found out that my sailboat had some Naval Industrial Bottom Paint applied. Commercial and what not. How long does this last estimated little to no use just sitting. I am taking it out of water on Thanks Giving and re-applying the paint regardless.

Next Question: A paint that will last a year or two and prices any thoughts on what to go with? Trying to avoid 300$plus per gallon . Thanks.
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Old 28-10-2013, 14:45   #2
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Re: Bottom Paint Questions

If the boat just sits there most of the time I'd use a hard paint. An ablative will not work as well. Look for high copper content. A hard paint will work better as, no matter what you use, if the boat sits a lot you'll need a diver every few months.
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Old 28-10-2013, 14:53   #3
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Re: Bottom Paint Questions

So something like this? 39% Cuprous Oxide

INTERLUX MicronŽ Extra Antifouling Paint at West Marine
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Old 28-10-2013, 14:59   #4
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Re: Bottom Paint Questions

Micron extra would suffice? 39% content. I own a 28ft do you suppose it would be three gallon job? I've never applied this type of paint before. Thanks for the information Vasco.
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Old 28-10-2013, 15:03   #5
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Re: Bottom Paint Questions

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Originally Posted by Macncheez View Post
Micron extra would suffice? 39% content. I own a 28ft do you suppose it would be three gallon job? I've never applied this type of paint before. Thanks for the information Vasco.
i just antifouled my 26footer bilge keeler with 2 coats and used 5liters
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Old 28-10-2013, 15:05   #6
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Re: Bottom Paint Questions

macncheese...1 gallon will probably be good for you. i have a 41ft with full deep keel, and mine takes 4 gallons. that is for 2 coats and 3-4 on leading edges and waterline.
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Old 28-10-2013, 15:08   #7
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Re: Bottom Paint Questions

Really that was it? I'll have to look in to quantities more so. I was just about to purchase that amount to make sure I did it right.

I found this so far Calculator
Bottom Paint Calculator
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Old 28-10-2013, 15:20   #8
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Re: Bottom Paint Questions

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Really that was it? I'll have to look in to quantities more so. I was just about to purchase that amount to make sure I did it right.

I found this so far Calculator
Bottom Paint Calculator
i would think with 2 us gallons you should get 3 coats,i would also reccomend buying a liter of xyleen thinners for clean up,and thinning if it is hot,and getting the last of the paint out the tin so no wastage.

also using the blue or green masking tape will save hassel of normal masking tape not coming off properly.

using a broom handle to extend the roller handel will save your back from a lot of bending over!
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Old 28-10-2013, 15:53   #9
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Re: Bottom Paint Questions

using cheap paint is only for boats in snow country where they haul out every year. paint only needs to last a few months.

for florida boats i highly recommend pettit trinidad. it comes in many flavors but you want the one with the highest copper content - i use the 'professional' version which has maybe 75% copper. check the cans because some colors - like red - have a higher copper content than the exact same paint in another color. at least two coats, and use any left over for the high wear areas such as leading edges.

two gallons would be more than enough for your boat, imho. buying cheap paint may save you money now but you will have to haul out more often and that can pretty quickly negate any savings on the paint.
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Old 29-10-2013, 12:46   #10
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Re: Bottom Paint Questions

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for florida boats i highly recommend pettit trinidad. it comes in many flavors but you want the one with the highest copper content - i use the 'professional' version which has maybe 75% copper.
Trinidad is the best anti fouling paint available, IMHO. However Pettit has reduced the copper content in both the Trinidad SR and Trinidad Pro (identical products, BTW) to 60%. They now process the copper differently than in the past, making less copper work more effectively.
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Old 29-10-2013, 13:14   #11
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Nice I'll purchase a gallon and two quarts and see how it goes. Thanks for advice I'll definitely get Trinidad.
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Old 29-10-2013, 14:56   #12
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Re: Bottom Paint Questions

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Nice I'll purchase a gallon and two quarts and see how it goes. Thanks for advice I'll definitely get Trinidad.

Buy 2 gallons, probably doesn't cost much more than 1 gal and 2 quarts. The paint lasts forever so save what you don't use for next time or touching up.
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Old 29-10-2013, 15:15   #13
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Re: Bottom Paint Questions

Having been using Micron Extra for many years. Get up to 3 years between haulouts. Do have to hit it with a soft brush occasionally but that's a minor problem.
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Old 29-10-2013, 15:45   #14
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Re: Bottom Paint Questions

I have good luck with Micron Extra, also. If you don't know the manufacturer of the existing bottom paint, You might want to buy a quart of what you propose to use and do a test spot to see if the paints are compatible. You could also call the manufacturer of the paint you would like to use and ask them if there are any compatibility problems, or any tips on what to use. In the past, I have found that a quality supplier wants you to be happy so you buy more paint and will steer you away from a certain product if they suspect a problem.
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Old 29-10-2013, 15:59   #15
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Re: Bottom Paint Questions

This time last year the PBS Store had the best price for Trinidad Pro. Shipping was very reasonable and speedy.

Pettit Trinidad Pro Hard Antifouling Bottom Paint
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