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Catalina/Capri 25/250 Sailor's Forums

General Sailing Forum

bottom paint (simple questions)

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klinck
Deckhand

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USA
3 Posts

Initially Posted - 11/22/2002 : 08:58:53

I am thinking of painting the bottom of my C25 (Jojuleen) this winter using Trinidad. I have had it painted in yards before, but it seems to be something relatively easy to do.

1) How much paint to I need? It is a swing keel boat built in 1984, if that makes a difference.

2) This will be the fourth or fifth coat of paint since I had the bottom peeled and sealed. Does the old paint need to be removed at some point? Is sanding the best way to do it?

As a note, the last bottom coat has lasted two years without much bottom growth. Just a bit of slime that brushes off. Jojuleen stays on Chesapeake Bay near Norfolk VA.

Thanks,

John

John Klinck
Jojuleen, hull 4363

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Kirk McKay
Navigator

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USA
111 Posts

Response Posted - 11/22/2002 : 09:22:43

I can answer question one. On my 82 fin, one gallon will do the trick, with just enough left for the yard guys to cover the spots under the stands.(the stuff aint cheap!)

Kirk

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Douglas
Master Marine Consultant

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1595 Posts

Response Posted - 11/22/2002 : 12:04:17

One gallon will give almost two coats. Dont remove the old paint just rough up areas that have been flaking and re paint. You can also change color. When you see the old color coming through its time to repaint. If after two years all you have is slime you may not need to repaint that often. Water conditions vary. I also put a spice container of cayenne pepper in my paint. It has kept the mussels off the keel. some say yea and some nea but its doesn't cost more than 3$ to find out it works here.

Doug&Ruth
Triska (Alberg 29)
Tacoma Wa.

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osmepneo
Past Commodore

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USA
1420 Posts

Response Posted - 11/22/2002 : 20:19:50

osmepneo had VC Offshore when I bought her, a deep purple color. After my second year, a particularly bad year for barnacle growth, I had such an infestation of the critters I must have increased wetted surface 1000 times <img src=icon_smile_angry.gif border=0 align=middle>. She moved like . . . well she didn't move.

I decided to repaint. 1 gallon of Interlux Micron Extra with Biocide. I think I put on put on 5 very thin coats from that gallon and have the deep purple underneath to tell me when its time to repaint, or to touch up. Its been on for three seasons now, no growth, just a little slime. I'm very pleased with the results.

Don Peet
c25, 1665, osmepneo, sr/wk
The Great Sacandaga Lake, NY

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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts

Response Posted - 11/23/2002 : 11:52:04

Don: Barnacles in Great Sacandaga Lake?? I thought that was fresh water... Are you breeding a new weapon of mass distruction up there??

Dave Bristle - 1985 C-25 #5032 SR-FK-Dinette-Honda "Passage" in SW CT

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Ben - FL
Admiral

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880 Posts

Response Posted - 11/23/2002 : 15:02:30

Thursday I jumped in the water with my tank on to do some scraping. My 12" drywall knife makes a good scraper. Even though I am in the fresh water side of the St. Johns R. there is still barnacles on the bottom. And it is black water diving. I have to go by feel.

Any way, someone on the forum had mentioned a bottom paint that turned into hydrogen peroxide and worked really well. I need something that will work better. Anyone remember that stuff?

Safe voyages,
Ben, FL s/v Chick-a-pea C250wk

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osmepneo
Past Commodore

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USA
1420 Posts

Response Posted - 11/23/2002 : 17:32:32

DAve, No barny's here. But before moving north I sailed the Hudson River at Nyack NY. Great sailing grounds, but that year was particulary productive for the barnacles <img src=icon_smile_sad.gif border=0 align=middle>.

Don Peet
c25, 1665, osmepneo, sr/wk
The Great Sacandaga Lake, NY

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osmepneo
Past Commodore

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USA
1420 Posts

Response Posted - 11/23/2002 : 17:38:00

Ben,

I don't how how it works but the Interlux Micron Extra with Biocide keeps growth from happening. Actually it "washs" off as the boat moves through the water.

The year of my severe barnacle growth, I had no growth. Don't know what would have happened had I stayed at Nyack. But in my limited experience this stuff is good <img src=icon_smile_big.gif border=0 align=middle>.

That said, talk to marine dealer, perhaps they have some suggestions for your waters.

Don Peet
c25, 1665, osmepneo, sr/wk
The Great Sacandaga Lake, NY

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The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.