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Old 09-04-2011, 01:11 PM   #1
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Bottom Paint

This could be like getting people started about Chevys and Fords, but What is the best bottom paint to use on my glass hull? Mind you I am in the Tropics. Any thoughts or recommendations? BB
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Old 09-04-2011, 01:52 PM   #2
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RE: Bottom Paint

Petit Trinidad SR
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Old 09-04-2011, 03:45 PM   #3
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RE: Bottom Paint

Will I use the same paint on my rudder and prop?BB
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Old 09-04-2011, 04:22 PM   #4
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RE: Bottom Paint

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belizebill wrote:
Will I use the same paint on my rudder and prop?BB
You can, but it won't last (I'm assuming*your rudder is metal).* Maybe Keith will chime in, but here's my 2 cents.**Short of PropSpeed or using a combination of a metal primer such as Pettit 6455, then several coats of epoxy before the bottom paint, bottom paint alone won't last unless you go from the yard to your slip.
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Old 09-04-2011, 04:48 PM   #5
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RE: Bottom Paint

The next time I haul my boat I'm going to use Interlux Pacifica Plus. I was talking to the Interlux sales rep last week and he said that their tests of Pacifica Plus have been the best he's ever seen. It doesn't use copper as the poison and it is very high in solids. Because it has no copper it can be used on aluminum. The high solids mean it covers better than a more conventional bottom paint and it releases fewer VOC into the air. It is also self polishing. The draw back is that it doesn't hold up well on fast boats, 30+ knots. I don't think that will be an issue for this forum. I like Prop Speed on my propeller. It's the only paint that I've had stick and continue to work for more than a couple of months on my prop.
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Old 09-04-2011, 05:59 PM   #6
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RE: Bottom Paint

I'm on my second season with Interlux Micron CSC, color is blue.* It's a self-polish (ablative style) paint and has low copper content.*
*
I'm not entirely thrilled with its performance. Within a couple of months it was already accumulating slime and grass.* For the first year it would clear off about 95% of it after an hour of running at 8 to 9 knots.* This summer it grows a foot of grass and slime within two - three weeks at the dock and it will clear off all the long stuff after an hour of running, but not the slime and short grass.* It seems to adequately control barnacles and muscles, but it is fertilizer for grass and slime. *It's mainly an appearance issue, but who wants two feet of grass hanging down from your hull. *My neighbor boat had the same paint, color was black, *put on in June this year with the same results.
So if you use this paint, plan on making at least a one hour run every week or be the talk of the marina *
I believe I will be going back to a copper base paint, if the EPA lets me, next haul out.
*
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Old 09-05-2011, 05:56 AM   #7
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RE: Bottom Paint

What about this Copper Coat, very long-lasting type which is meant to last over ten years. Anyone with personal experience? Apparently it is meant to be almost as good as copper sheathing, and because it does not wear off, it is non-polluting, or so we are lead to believe. http://coppercoat.com/
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Old 09-05-2011, 06:57 AM   #8
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RE: Bottom Paint

I have had good results from the cheapest stuff I could find (mind you we are in brackish), CPP+ from West Marine (we get a friend to buy it with their WM Port Supply discount and get it for $60/gal). We pull her annually so,to us, wasting $250/gal. on exotic paint would be a huge waste. YMMV
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Old 09-05-2011, 07:40 AM   #9
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Bottom Paint

I've tried everything from plain bottom paint, to petit's underwater metal kit, and another metal specific kit. They all work about the same... the picture below is after a year or so with plain bottom paint. Even though the paint is gone on the prop, there was no fouling on it. And most of the paint is still on the rudder. I now use propspeed on the propeller, and regular bottom paint on the rudder. New pix in about a month.

Oh, the bottom paint I've used for years is Petit Trinidad SR. Easily lasts 4 years here in the Galveston Bay area.


-- Edited by Keith on Monday 5th of September 2011 07:42:43 AM
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Old 09-05-2011, 11:21 AM   #10
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RE: Bottom Paint

Has anyone heard of Sea Hawk Islands 44 bottom paint?BB
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Old 09-05-2011, 12:26 PM   #11
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RE: Bottom Paint

Quote:
belizebill wrote:
Has anyone heard of Sea Hawk Islands 44 bottom paint?BB
We used it when we were in Trinidad in 2004.* Some of the best paint we ever used because it contains TBT (tributyltin) in addtion to couprous oxide.* Nothing grew on the hull.*
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Old 09-05-2011, 02:16 PM   #12
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RE: Bottom Paint

Quote:
Peter B wrote:
What about this Copper Coat, very long-lasting type which is meant to last over ten years. Anyone with personal experience? Apparently it is meant to be almost as good as copper sheathing, and because it does not wear off, it is non-polluting, or so we are lead to believe. http://coppercoat.com/
Peter

I dont know if they market it here in the States, at least I haven't seen this product before. *I don't know how much longer we will be allowed to use copper based paints here anyway. *

The EPA would like to outlaw it's use on non-commercial hulls, along with requiring you to store your sink and bath tub water.

I'm thinking maybe I will move to Oz too. *You got room for me there Peter?

Larry B
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Old 09-05-2011, 04:44 PM   #13
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RE: Bottom Paint

BTW, you can still get TBT (Tributyl tin) at the house paint store as a mold/mildew additive, and add it into your bottom paint.
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Old 09-05-2011, 09:46 PM   #14
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Bottom Paint

I tried that Keith but it was for latex house paint and wasn't compatible. I use Petit Sea Mate now ($80 gal here in Alaska) but on my first app so can't comment on it's performance but the Interlux Micron Extra that we used before worked very well except I had to scrape it off after 3 years. Don't want to do that ever again. Here's the bottom after 3 years. I use Armor All on the prop.


-- Edited by nomadwilly on Tuesday 6th of September 2011 01:43:52 PM
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Old 09-05-2011, 10:34 PM   #15
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RE: Bottom Paint

There is no need to add TBT to bottom paint anymore. TBT was used as a slime preventer. Both Interlux and Pettit have come up with very effective replacements. Pettit uses Ingarol and Interlux uses Biolux. Copper is used to prevent hard fouling like barnacles and oysters. If you prefer a hard paint, you can't go wrong with Pettit Trinidad SR or Interlux Ultra with Biolux. I prefer an ablative or self polishing paint so I don't get a build up of paint over time. Interlux Micron 66 is great for boats that stay in the water year round. Micron Extra with Biolux can be hauled and relaunched for multi season use on boats that spend the winter on the hard. Interlux has even come up with a replacement for copper. It is their Econea which is used in conjunction with Biolux in their Pacifica paint.

About ten years ago I tried a product similar to Copper Coat. It was an epoxy resin with a very heavy load of copper. It lasted about as long as cheap bottom paint without a slime preventer. I was very disapointed.
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Old 09-05-2011, 11:13 PM   #16
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RE: Bottom Paint

I'm going to try something different next time. *In the past I used interlux with good success. *But this Micron CSC is not what the yard claimed it would do. *I used Pettit Trinidad before and as I recall it was fine. *

I actually used West Marine cheap paint once and it lasted over 4 years. But during haulout, as they were pressure washing it, small water bubbles were forming between the bottom paint and gelcoat. *The surveyor about panicked, thinking it was blisters!! As it dried it started coming off in big patches. *Had to take the rest off with a garden hoe. *Won't do that again. **
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Old 09-06-2011, 07:45 AM   #17
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RE: Bottom Paint

Quote:
Edelweiss wrote:Peter B wrote:
What about this Copper Coat, very long-lasting type which is meant to last over ten years. Anyone with personal experience? Apparently it is meant to be almost as good as copper sheathing, and because it does not wear off, it is non-polluting, or so we are lead to believe. http://coppercoat.com/
Peter

I dont know if they market it here in the States, at least I haven't seen this product before. *I don't know how much longer we will be allowed to use copper based paints here anyway. *

The EPA would like to outlaw it's use on non-commercial hulls, along with requiring you to store your sink and bath tub water.

I'm thinking maybe I will move to Oz too. *You got room for me there Peter?

Larry B

*Sure have Larry, any time we would make room for you.* Although we also have fairly stringent waste disposal requirements, but nothing planned for grey water though. * Quite a good supply of marina berths at present, and most of ours you can buy on long term lease as well. *

As to Coppercoat - yes, it is in the US, as it is actualy advertised near the back of the latest Passagemaker Mag.
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Old 09-06-2011, 10:16 AM   #18
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RE: Bottom Paint

Edelweiss, If you switch to Trinidad, be sure to use the Trinidad SR. It is much better than just plain Trinidad. You were disappointed in the Micron CSC because it didn't have a slime biocide. If you use a cheap paint without a slime blocker, the slime seems to block the copper and soon you get hard growth as well as slime. Boatyards know they are competing on price when it comes to bottom jobs so they recommend what ever paint they can buy cheap.
Micron CSC is an ablative paint and Trinidad is a hard paint, I'm not sure you can put Trinidad over CSC. Check with Pettit on that. I think you should stick to an ablative or self polishing paint anyway. If you want to switch to a Pettit product, look at their Ultima SR. The SR in the name of a Pettit product means "Slime Resistant".
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Old 09-06-2011, 12:18 PM   #19
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RE: Bottom Paint

How about some more comments on Copper Coat. I talked to their rep at a boatshow and it sounded impressive. Any real world experience out there?

Ron
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Old 09-07-2011, 04:20 AM   #20
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RE: Bottom Paint

Before painting my hull I contacted Interlux thru their on line forum: yachtpaintforum.com

The moderators are interlux employees. They were very helpful in picking the right paint for me. Interestingly enough, most boat owners here in SW Florida use an ablative type bottom paint. The moderator did not recommend this type based on my usage, but rather a hard type. He mentioned that the ablatives are good for boats that are used several times a month. Larry in a previous post seems to mirror this thinking.
Anyway, I used their recommendation and have been happy with the results, but the boat has been in the water only 6 months.

There is not a good paint for the running gear. I put 3 coats of primer and 3 coats of bottom paint, the same as the hull and most of it was gone from the props in a month.

I purchased Interlux Ultra from Boatfix.com in a 3 gal container and saved quite a bit.

Good luck.



Note: I have my boat bottom cleaned once a month.
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