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14-11-2011, 10:19
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#1
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Registered User
Join Date: May 2005
Posts: 20
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Improving Bottom Paint
I know some of you will think this is a dumb question but if you don't ask? I understand that the anti fouling is basisd a lot on the copper contine of the paint. I've also been told that adding pepper as some people say to do is a waste and doesn't work to increase the anti fouling properties. What since copper seems to be the main thing what about taking a wheel grinder and some copper tubing grinding up a bunch of copper dust and adding it to the paint to increase the anti fouling properties? I'm sure it would change the color some but for the most part it's under water anyway. Just a thought, has anyone tried this?
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14-11-2011, 10:34
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#2
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Registered User
Join Date: Aug 2006
Location: Skagit City, WA
Posts: 25,482
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Re: Improving Bottom paint
You'd need to get the grindings real fine.
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard
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14-11-2011, 11:41
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#3
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always in motion is the future
Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 18,862
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Re: Improving Bottom paint
The problem with adding is that the copper contents is basically at the maximum that the binding properties of the paint support. If you add more, the paint falls apart so to say.
p.s. I did see some results from cayenne pepper that were promising.
ciao!
Nick.
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14-11-2011, 12:05
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#4
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Hull Diver
Join Date: Oct 2006
Location: Under a boat, in a marina, in the San Francisco Bay
Posts: 5,428
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Re: Improving Bottom paint
I find it amusing when kitchen-sink chemists think they can improve a product that has decades and millions of dollars of R&D behind it. If "improving" anti fouling paint were as easy as adding peppers or copper filings to it, it would be common practice. But it's not. Because it doesn't work.
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14-11-2011, 12:38
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#5
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Registered User
Join Date: Nov 2010
Location: Cape Town, South Africa
Boat: Still Looking
Posts: 43
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Re: Improving Bottom paint
From what I understand, there is legislation in certain countries that governs the maximum copper content for environmental reasons. So as I understand it, you could add copper and it should work. It just might or might not be legal depending on where you are.
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14-11-2011, 12:51
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#6
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Registered User
Join Date: Aug 2006
Location: Skagit City, WA
Posts: 25,482
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Re: Improving Bottom paint
Quote:
Originally Posted by SPARK
From what I understand, there is legislation in certain countries that governs the maximum copper content for environmental reasons. So as I understand it, you could add copper and it should work. It just might or might not be legal depending on where you are.
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Right on, and some TBT if you can find it! I've wondered if dissolving some "moss away" copper/fungicide based house roof granules might be an improvement!
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard
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14-11-2011, 13:12
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#7
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Registered User
Join Date: Nov 2010
Location: Lafayette, Louisiana
Boat: Ketch, Hardin 45
Posts: 440
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Re: Improving Bottom paint
Doesn't the pepper make the whales sneeze??
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14-11-2011, 14:53
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#8
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Registered User
Join Date: Aug 2008
Location: Wash DC
Boat: PETERSON 44
Posts: 3,165
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I'm thinking about grinding up old Teflon pots and adding that to the mix. There have been some resin and. Opera dust experiment with bottom applications. I don't think most have had dramatic results
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14-11-2011, 14:56
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#9
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Hull Diver
Join Date: Oct 2006
Location: Under a boat, in a marina, in the San Francisco Bay
Posts: 5,428
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Re: Improving Bottom paint
Bear in mind that if you modify an anti fouling paint and the paint subsequently fails (regardless of cause), you will get nothing but a pleasant wave goodbye from the manufacturer.
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14-11-2011, 15:26
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#10
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S/V rubber ducky
Join Date: Jul 2007
Location: heading "south"
Boat: Hunter 410
Posts: 20,363
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Re: Improving Bottom paint
Quote:
Originally Posted by fstbttms
Bear in mind that if you modify an anti fouling paint and the paint subsequently fails (regardless of cause), you will get nothing but a pleasant wave goodbye from the manufacturer.
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What do you get otherwise
__________________
Don't ask a bunch of unknown forum people if it is OK to do something on YOUR boat. It is your boat, do what you want!
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14-11-2011, 15:33
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#11
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Hull Diver
Join Date: Oct 2006
Location: Under a boat, in a marina, in the San Francisco Bay
Posts: 5,428
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Re: Improving Bottom paint
Quote:
Originally Posted by Don Lucas
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Good point.
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14-11-2011, 15:36
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#12
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Registered User
Join Date: Oct 2009
Location: Australia
Boat: CT 54... for our sins!
Posts: 2,083
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Re: Improving Bottom paint
I met a guy who was living a real shoestring alternative lifestyle. He claimed he had a vet friend who gave him 'horse antibiotics', whatever that may be, which he mixed in and got 3 years out of his AF.
This was after the legislation changed in Aus and the early relpacement product was lucky to give you a year.
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14-11-2011, 15:47
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#13
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Registered User
Join Date: Oct 2008
Location: Northern British Columbia, part of the time in Prince Rupert and part of the time on Moresby Island.
Boat: 50-ft steel Ketch
Posts: 1,884
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Re: Improving Bottom paint
Quote:
He claimed he had a vet friend who gave him 'horse antibiotics', whatever that may be, which he mixed in and got 3 years out of his AF.
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Could have been something like Duramycin (in the tetracycline group); it is water soluble and mixed with a paint could in theory have some benifit as the paint wears. It costs around $22/lbs.
I don't really advocate such a way of going about improving paint, but who knows. There might be something to it.
__________________
'Tis evening on the moorland free,The starlit wave is still: Home is the sailor from the sea, The hunter from the hill.
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14-11-2011, 21:17
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#14
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Registered User
Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 4,057
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Re: Improving Bottom Paint
If you want better bottom paint spend a few dollars more and buy a paint with a soft growth biocide in addition to copper. These would be Interlux paints with Biolux or Pettit paints with Ingarol. Other paint companies use similar biocides. These are the chemicals that the paint companies came up with to replace Tri Buytl Tin. If you are using Trinidad now switch to Trinidad SR, you'll see a dramatic improvement in how long your boats bottom stays clean.
__________________
Retired from Hopkins-Carter Marine Supplies
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14-11-2011, 21:43
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#15
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Registered User
Join Date: Sep 2006
Location: Melbourne AUS
Boat: Transpac 49
Posts: 179
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Re: Improving Bottom paint
Quote:
Originally Posted by VirtualVagabond
I met a guy who was living a real shoestring alternative lifestyle. He claimed he had a vet friend who gave him 'horse antibiotics', whatever that may be, which he mixed in and got 3 years out of his AF.
This was after the legislation changed in Aus and the early relpacement product was lucky to give you a year.
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Maybe he was talking about this stuff?
Check out this thread on CF. It seems that this research is still in the investigative stage in Europe, however the results are very promising. I personally will try out a few test strips when I get back to AUS.
Bloke
__________________
Just remember, Engineers built the Titanic, and Noah built the Ark
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