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  #1  
Old 01-24-2010
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Copper Bottom Paint....ReDux?

A couple of months ago in Cruising World, there was a blurb on the product pages about Copper Epoxy bottom paint being approved for use by the EPA in the USA. Has anyone had experience with these products? Especially in Brackish water?

The thing that appeals to me about this paint is that its purported long life. There cruising blogs that said that they only need to re-do the bottom once every 10 years!

Sure beats a $2000 yard bill every 18 months!
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Last edited by night0wl; 01-24-2010 at 01:50 PM.
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Old 01-24-2010
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Some years ago, on Yachting Monthly I have read a test about a similar product.
I was not impressed (neither the testers). It works not so well as a regular anti-fouling and you have to take the boat out of water once a year to clean properly the hull.
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Old 01-24-2010
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Assuming you are talking about copper-laoded epoxies (like Copperpoxy and Copper Coat and are not actually "paints"), these products have been around for years and have had mixed performance results, typically working better in low-fouling regions. Here in the Bay Area (where we experience moderate to high fouling) these products are almost never seen anymore, because they perform so poorly.

Edit: On second read, maybe you are not referring to copper-loaded epoxies. Do you have a product name?
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Old 01-24-2010
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Quote:
Originally Posted by Fstbttms View Post
Assuming you are talking about copper-laoded epoxies (like Copperpoxy and Copper Coat and are not actually "paints"), these products have been around for years and have had mixed performance results, typically working better in low-fouling regions. Here in the Bay Area (where we experience moderate to high fouling) these products are almost never seen anymore, because they perform so poorly.

Edit: On second read, maybe you are not referring to copper-loaded epoxies. Do you have a product name?
No, you were right. It was copperpoxy or coppercoat...something along those lines. Basically an epoxy barrier coat with copper dissolved in it. You'd burnish the bottom to make it look like a shiny penny. It supposedly lasts 10 years and can be reactivated by simply sanding the bottom a bit to expose the copper.
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Old 01-24-2010
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Quote:
Originally Posted by night0wl View Post
No, you were right. It was copperpoxy or coppercoat...something along those lines. Basically an epoxy barrier coat with copper dissolved in it. You'd burnish the bottom to make it look like a shiny penny. It supposedly lasts 10 years and can be reactivated by simply sanding the bottom a bit to expose the copper.
Well, I can't recommend these products. I rue the day they hit the market and am glad I don't run across them anymore. However, YMMV.
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Old 01-26-2010
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Coppercoat should not be confused with Copperpoxy or Copperclad, or any of the other copper/epoxy coatings that have been in the US market and failed.

Coppercoat is a waterbased non-toxic, non-hazardous epoxy coating with 4.4 pounds of 99.6% pure copper powder added to each liter of epoxy before it is applied. Coppercoat was developed in England 19 years ago and has been applied to over 35,000 boats to date. It is sold in over 20 countries and just became available in the US in Feb. 2009. It is fully EPA approved, is classified as nonleaching and does not ablate like most other coatings.

Coppercoat does not claim that it is maintenance free, it needs to be cleaned from time to time like all other bottom paints.

We are the US distributors for Coppercoat and I would be glad to answer any questions anyone might have.
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Old 01-26-2010
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Quote:
Originally Posted by Edboat View Post
Coppercoat should not be confused with Copperpoxy or Copperclad, or any of the other copper/epoxy coatings that have been in the US market and failed.

Coppercoat is a waterbased non-toxic, non-hazardous epoxy coating with 4.4 pounds of 99.6% pure copper powder added to each liter of epoxy before it is applied. Coppercoat was developed in England 19 years ago and has been applied to over 35,000 boats to date. It is sold in over 20 countries and just became available in the US in Feb. 2009. It is fully EPA approved, is classified as nonleaching and does not ablate like most other coatings.

Coppercoat does not claim that it is maintenance free, it needs to be cleaned from time to time like all other bottom paints.

We are the US distributors for Coppercoat and I would be glad to answer any questions anyone might have.
Edboat -

1) what kind of warranty or longevity gaurantee can you provide if the Coppercoat product is applied by an approved yard?
2) What sorts of 10 year results can you provide? Any websites with cruiser testimonials?
3) What is the maintenance regime required by the product?
4) How is your product specifically different than the prior mentioned Copper-poxy and CopperClad products?
5) What data/evidence do you have about performance in various water temperature gradients? Does the product perform better in cold temps...warm temps...high salinity vs low salinity...etc. (Please provide data or studies to show evidence). Please speak to brackish vs salt vs fresh water and again, provide any data you may have.
6) What sorts of precautions must be taken during applicaiton & maintenance to ensure galvanic integrity of parts/systems. Do we have to change Zincs types if using Coppercoat...? Especially if a boat is kept in brackish water?
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Last edited by night0wl; 01-26-2010 at 01:52 PM.
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Old 01-26-2010
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as a marine industry representative, I would highly recommend you listen to and follow the Special Interest guidelines as posted in the Boat Buying forum.
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Old 01-27-2010
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While at the London Boat show I ran across this bottom coating system and thought it interesting.
New Cuniguard Antifouling Brings Major Savings To Boat Owners

The big difference between it and other Copper coat systems I've seen over the years is this has a single coat of epoxy applied to the hull then while still wet, a mixture of mostly copper and a bit of nickel is sprayed on with a set-up that looks similar to a powder coat sprayer.

Traditional copper coat systems mix the powder with the epoxy and then apply several coats.

I think the price quoted is retail with them doing it....looks like the material costs, if you were to act as a dealer, would be about a third.

Cleaning down to the "bedrock" is necessary.

Any one have any experience with this system...
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Old 01-27-2010
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Quote:
Originally Posted by sailingdog View Post
as a marine industry representative, I would highly recommend you listen to and follow the Special Interest guidelines as posted in the Boat Buying forum.
Realize that SailNet is hosted by a retail marine supply business. We all play by their rules, which are here to make sure that everybody plays nice. What my esteemed colleague, Mr. 'Dog, is referring to is this rule;
Quote:
IF YOU ARE GOING TO PLAY AN ACTIVE ROLE IN THIS FORUM, OR ANY FORUM ON SAILNET, AND YOU HAVE A SPECIAL INTEREST IN THE MARINE INDUSTRY, YOU NEED TO IDENTIFY YOURSELF AS SUCH. THIS INCLUDES BROKERS, BOAT MANUFACTURERS OR EMPLOYEES THEREOF, MAGAZINES, TV SHOWS, SURVEYORS AND ANY OTHER SPECIAL INTEREST GROUP.

The Ground Rules (which may be added to as needed) for this are such:

1) You shall not in any way self promote...this includes links or e-mail addresses.

2) You shall identify yourself and your interest in your signature, your title, or both.

3) You shall not openly promote your company. Take out an ad. [with SailNet]

4) You shall not redirect for personal interests.

5) You SHALL be tranparent and forthright.
That said, you have followed the rules, and, to my knowledge (I'm not a moderator), there is no issue with publicly answering a question, once it has been asked in a forum. You may want to edit your signature / title to more closely adhere to point #2. (BTW - Is Mr. Smith still active here?)

On the flip side, to not publicly answer a question leads readers to infer their own conclusion. To be honest, I'm interested in Night0wl's questions too.

Quote:
1) what kind of warranty or longevity gaurantee can you provide if the Coppercoat product is applied by an approved yard?
2) What sorts of 10 year results can you provide? Any websites with cruiser testimonials?
3) What is the maintenance regime required by the product?
4) How is your product specifically different than the prior mentioned Copper-poxy and CopperClad products?
5) What data/evidence do you have about performance in various water temperature gradients? Does the product perform better in cold temps...warm temps...high salinity vs low salinity...etc. (Please provide data or studies to show evidence). Please speak to brackish vs salt vs fresh water and again, provide any data you may have.
6) What sorts of precautions must be taken during applicaiton & maintenance to ensure galvanic integrity of parts/systems. Do we have to change Zincs types if using Coppercoat...? Especially if a boat is kept in brackish water?
Thanks In Advance! (TIA!)
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