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Old 22-04-2010, 08:05   #31
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Originally Posted by fstbttms View Post
Not where I come from. Three years on a properly maintained modified epoxy bottom, two on an ablative bottom.
Guess it depends on how much distance you cover and if you haul out for the winter.. if your alongside for 5mths out of 6-7 then on the hard for the next 5 sure...
Gee... this is fun....lol
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Old 22-04-2010, 09:04   #32
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How many coats are ya putting on?
One coat for us, (International Cruiser Uno) the paint is designed for one coat, one year, so yes doesn't build up too much or flake off.

And no, still not convinced of the need to spend $600 to lift her out just to sweep up a few drops of paint. There are something like 8000 boats moored in Portsmouth Harbour, plus the RN fleet and commerical ships. My impact is minimal and more importantly to me, cheap

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Old 18-08-2013, 17:00   #33
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Re: To Bottom Paint, or Not to Bottom Paint (or Just a Touch-Up)

Sorry to necro this thread but as they say people get choked when you dont do a quick search first.

Im sitting idle without engine so my thoughts are wandering while i linger on the boat...

Do you have to paint the bottom of the boat? Or is this just to speed up the boat and prevent mussels/etc from binding to the boat?

My sounder wasnt working so i took a brush to get any slime off that was blocking the beam and i saw a bit of blue floating in the water afterwards. I think theres some non bottom paint of that color just under the waterline so it may or may not have been the actual bottom paint.

My hull is thick fibreglass and my boat sits in fresh water at the slip in an estuary (i sail in salt water). Its easy enough to brush off any slime thats grown and when i go to sea the salt water kills the remaining slime and it just falls off. No mussels or things like that grow on boats moored here.

I talked to a guy at the dock who said that that was very bad and proceeded to tell me that thats why they gelcoat boats. My gelcoat wore off years ago (the boat is a 72 vintage) and the thing still floats fine, bilge gets less than 5 litres of water to pump out a month and im sure a bunch of that is just condensation on the hull (gets a bit worse in the fall when it starts cooling down).

Im sure there is merit to getting the boat on a grid or hauled out from time to time just to check on the bottom and thats a great time to paint it anyway but just wondering if the paint itself has much other purpose than preventing buildup of marine life.
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Old 18-08-2013, 18:02   #34
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Re: To Bottom Paint, or Not to Bottom Paint (or Just a Touch-Up)

Nope, thats about it.
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Old 27-03-2016, 05:18   #35
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Please Explain "Acetone on Rags"

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Originally Posted by CharlieCobra View Post
It's getting tough to do bottom paint these days. We do it and other than smoothing chips, we don't sand ablative at all but use Acetone and rags. Any sanding is done with vacuum sanders. If going froma soft to a hard paint or to redo the barrier coat, we soda blast and collect ALL of the residue for disposal. No more Smurf's allowed in the yard....
What I don't understand from your post is what acetone and rags will do, in order to create a surface to which your ablative paint will adhere. My rather na´ve understanding is that we sand, in order to create a surface to which the ablative paint will adhere. A primer coat always goes on first, no?

Just trying to understand your point of view.

G2L
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Old 27-03-2016, 05:22   #36
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You Shittin' Us, or What?

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Originally Posted by boatman61 View Post
500gms Chili powder, 250gms garlic powder -1 litre bilge paint..... stir well and apply...
Actually, I have heard people swear by something like this, but I never believed it.

I have heard that ablative paint these days does not have enough copper to be very effective so putting in the chili powder makes the paint 2x more effective, thus requiring less cleaning and lasting longer.

As to the garlic, I have not heard that, but I have used it to keep ants at bay.

How serious are you about this?

me again
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Old 27-03-2016, 05:32   #37
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Love the quote ...

... the one used with your moniker, that is.

Carry on, sailor ... : )

G2L
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Old 27-03-2016, 05:58   #38
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Re: Please Explain "Acetone on Rags"

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Originally Posted by Gone2long View Post
What I don't understand from your post is what acetone and rags will do, in order to create a surface to which your ablative paint will adhere. My rather na´ve understanding is that we sand, in order to create a surface to which the ablative paint will adhere. A primer coat always goes on first, no?

Just trying to understand your point of view.

G2L
CharlieCobra hasn't posted in a couple of years so I daresay he doesn't much care about bottom paint anymore.
Fwiw I have never primed when I'm putting compatible bottom paint over bottom paint, I just sand and rinse off, let dry and paint.
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Old 27-03-2016, 06:53   #39
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Re: Please Explain "Acetone on Rags"

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CharlieCobra hasn't posted in a couple of years so I daresay he doesn't much care about bottom paint anymore.
Fwiw I have never primed when I'm putting compatible bottom paint over bottom paint, I just sand and rinse off, let dry and paint.
Yeah, I understand that.

G2L
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Old 27-03-2016, 07:16   #40
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Re: Please Explain "Acetone on Rags"

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Originally Posted by Gone2long View Post
Yeah, I understand that.

G2L
Rather than waste money on chilli powder which is better used in cooking, you could add extra copper. Indeed VC Offshore comes with the copper separate from the paint. Don't use the VC Offshore though, it's rubbish.
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Old 28-03-2016, 05:56   #41
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Re: Please Explain "Acetone on Rags"

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Rather than waste money on chilli powder which is better used in cooking, you could add extra copper. Indeed VC Offshore comes with the copper separate from the paint. Don't use the VC Offshore though, it's rubbish.
Not available where I am, which is why folks are resorting to rather strange methods, which, they swear, work.

Thanks,

G2L
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