Copper Coloured Bottom !
Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 461 / 470
Forum Description: 461 / 470 Hints and Tips
URL: https://www.myhanse.com/forum_posts.asp?TID=6994
Printed Date: 27 March 2026 at 03:40
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Topic: Copper Coloured Bottom !
Posted By: JonB
Subject: Copper Coloured Bottom !
Date Posted: 10 October 2012 at 14:16
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Dear All, We're currently having Norse King cleaned & Coppercoated and will add a few photo's to this when the works been done. Weather permitting in the UK it is likely to be done early next week. We've also had the mast un-stepped and are replacing the Sparcraft mast gator, we have had a niggling leak down the mast for sometime & it's the rubber has split. Not the main reason a piece of the spreader has come away where the first securing pin has been drilled through ! Keep an eye on the blogsite for additional photos too ------------- Jon B 470e http://www.norse-king.blogspot.co.uk |
Replies:
Posted By: samuel
Date Posted: 10 October 2012 at 17:42
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Copper coat do not tell you in their DVD or instructions but you need to abrade surface prior to launch My copper coat failed after 10 weeks & when I rang them they said take the boat out & lightly abrade surface I was a little annoyed because I had queried this with their director & he told me it was not necessary Our club has just lifted 2 squib keel boats & weed after 10 weeks was simply horrendous It seems you takeot luck as to it working or not The jet wash chap who lifted myboat when i got to St Helier told me he had washed lots of copper coat yachts & in his opinion it is a waste of time as he had not seen one that worked When he did mine I got him to jet wash a max powerafter he had done the initial scrub. He did this at my risk as he was concerned he may blow areas off the hull. However it seems to have done the trick as I watched my boat being hauled put last week & it had a film about as thick as the comdensation you get on a carw windscreen That being said I had spent a week in the Caledonian Canal so The jury is still out on whether it works Re the squibs- I also have one & My crew coated it with a different make of copper coating. Do not know the name as he bought it & applied it- i just paid the bil!!!. This was markedly better than the coppercoated ones ------------- Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex |
Posted By: david selby
Date Posted: 10 October 2012 at 23:01
hi, have a 315 coppercoated in 2008 just had liftout on inspection had slight slime on hull but cleaned off easily am pleased with the product, boat kept at  Exmouth, and yes was abraded at start of season.
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Posted By: JonB
Date Posted: 11 October 2012 at 21:55
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Explain abraded ! ------------- Jon B 470e http://www.norse-king.blogspot.co.uk |
Posted By: samuel
Date Posted: 12 October 2012 at 08:28
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The copper "dust" is encapsulated in an eroding resin rather like erodable antifouling but at a much slower rate When the boat is coated the resin is surrounding the copper & so prevents it from working until the surface resin has eroded to expose some copper By abrading we mean sand off the surface to expose the copper. This sanding operation has to be very fine otherwise one will remove the antifouling too much Generally a very fine sand paper or wet & dry or a nylon scouring pad will be equally effective. Early applications needed abrading every year but Coppercoat advised me that this was no longer necessary. I am a little annoyed that I was given the wrong info. The indicator that the copper is actually exposed is that the surface turns green when in the water for a while.. The fist question I was asked when I complained was "what colour is it?" As it was still red they deduced that the surface resin had not eroded enough at that time. The hull is now almost totally green but some areas are still a little red so I will abrade these before re launch ------------- Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex |
Posted By: JonB
Date Posted: 12 October 2012 at 09:23
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Thanks, I'll get in touch with Ewan a MD, we've been dealing with and see what he say's ! It is likely that we'll have the boat out around the same time next year to keep a check on the new anodes & see what it's like then ------------- Jon B 470e http://www.norse-king.blogspot.co.uk |
Posted By: Nilandhoo
Date Posted: 12 October 2012 at 09:36
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Hi all, we have a new 325 delivered in March this year which was treated with Coppercoat before launch. There has been some problems with Coral worm in Chichester harbour this year and there are rumours that the coral worm is attracted to metal. One reason for choosing Coppercoat was to limit the time the boat was out of the water (and the time spent applying antifoul) so we would not be happy if the Coppercoat does not work on coral worm. Onelife is due for a lift out in a couple of weeks, so I will let you know what we find. I spoke to the Coppercoat people at the Southampton Boat show and the guy on the stand said that it take a while for Coppercoat to reach full strength (about 12 months) and advised that we should 'abrade' the surface lightly and gave me an oversize scouring pad to do the job. Regards Paul ------------- Hanse 325 'One Life' |
Posted By: samuel
Date Posted: 12 October 2012 at 12:07
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JonB My anodes have eroded faster since I put the coppercoat on. However, as I was cruising round England I used shore power a lot more so that may be the reason ------------- Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex |
Posted By: JonB
Date Posted: 14 October 2012 at 18:37
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Hi all, Following your comments, I e-mailed a Managing Director from Aqua Marine Coatings the company that produces Coppercoat here is what he had to say :- Hi Jon, I've not seen the Hanse forum, but there is truth in the statements you make. 1) While it is not compulsory to burnish the Coppercoat prior to launching it is a good idea, especially if you are going to a high fouling location. It is simply a case of lightly wiping over the surface with a burnishing pad or a fine grade (say 600) of wet and dry paper - just to expose a little of the copper held within the epoxy. 2) it does take a while for the copper to degrade and produce the cuprous oxide required for best anti-fouling performance. It is normal for a treatment to perform better in year 2 and beyond than it does in year 1. 3) The colour will indeed change from dark brown to dark green as the copper oxidises. By the end of the year it should have changed to a uniform dark green colour. Most of what I read in forums (on all sorts of topics, not just Coppercoat is rubbish, but from the points you raise it appears that the Hanse community is better informed than most! Best regards, E.:- So well done guys on our forum we try to stick to facts than here say he went on to say :- Hi Jon, Please do feel free to cut and paste my comments, and do reference me so that readers know that the information has "come from the top"! I'd appreciate it if you added a comment along the lines of "for further accurate advice please contact AMC direct on info@coppercoat.com", but only if you feel comfortable doing so. Regards, E I'll obviously keep you up to date with how Norse King is doing, both slime wise & anode degradation.  ------------- Jon B 470e http://www.norse-king.blogspot.co.uk |
Posted By: JonB
Date Posted: 17 October 2012 at 20:27
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Hi folks, Here are a few shots before the company abrade the hull ready for launch. There's 5 coats and you can see what the weather can do, it'll all be even after its final rub down.  Norse King on the Hard We will of course be looking at the anodes same time next year so we'll take a few more pics and report back on the condition of everything ------------- Jon B 470e http://www.norse-king.blogspot.co.uk |
Posted By: Nilandhoo
Date Posted: 22 October 2012 at 17:50
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Hi all, We lifted Onelife out today to check on the state of the Coppercoat and I am very please to say that it appears to be working very well. The colour is still mostly brown but there are a few signs of the copper oxide starting to show in places. We had some Coral Worm growth on the propeller blades and on the rubber gaiter around the saildrive and some weed growth under the keel bulb where there is no coppercoat because the boat was sitting on blocks when treated originally. So far so good.... Paul ------------- Hanse 325 'One Life' |
Posted By: CharlesP
Date Posted: 23 February 2013 at 15:07
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We lifted out in October. Coppercoat has been on for two seasons, but we lift out for the winter each year. The keel had some slime, weed and barnacles, particularly on the lower surfaces of the bulb. The rudder was coated with slime and barnacles, particularly the lower half. Parts of the hull had some weed growth. I am therefore slightly disappointed with the performance of Coppercoat at this stage. For the most part it is now green in colour. Peller Clean on the prop and saildrive kept those areas free of fouling. Charles ------------- 'MERIDIAN LADY' 320 Nr 536 2010 Medway |
Posted By: sailkoop
Date Posted: 23 February 2013 at 17:39
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Hi Charles, do you have made some Pics!? I am asking because I am in the middle of the decision for a new Antifouling! regards ------------- best regards Bjoern |
Posted By: samuel
Date Posted: 23 February 2013 at 17:51
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As i said earlier i have done 2 of my boats with copper coatings The one on the mooring has Copper Tec there are several boats of the same design on adjacent moorings & they are done in copper coat It seems that Copper Tec has performed better than those boats as well as my Hanse ------------- Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex |
Posted By: CharlesP
Date Posted: 23 February 2013 at 21:01
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The River Medway where my yacht is moored, is particularly bad for fouling. All antifoulings seem to become coated with silt, with slime and weed following. The Coppercoat has so far not been any worse than other antifoulings. And it only requires a clean off at the end of each season. If I was racing, I would wash off more frequently. After two seasons, perhaps it will be better next season. If it lasts ten years, it will have worked out cheaper than other antifoulings and far less labour each year. Charles ------------- 'MERIDIAN LADY' 320 Nr 536 2010 Medway |
Posted By: plattgatt
Date Posted: 23 February 2013 at 23:37
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and there is no galvanic problems with the aluminum saildrive?
------------- 370#641 "aqua d`or" |
Posted By: CharlesP
Date Posted: 24 February 2013 at 00:35
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No galvanic problems anywhere. The aluminium saildrive is coated with Seajet Peller Clean. Charles ------------- 'MERIDIAN LADY' 320 Nr 536 2010 Medway |
Posted By: Bandy
Date Posted: 24 February 2013 at 22:11
Bandy has had the same treatment over the last 2 weeks. First it was sandblasted to get rid of all the old antifouling.  after that coppercoat was sprayed in 5 layers with the followeing result:  It looks good, a neat and smooth surface Bandy, Hanse 411
------------- Bandy, Hanse 411 2003 |
Posted By: JonB
Date Posted: 26 February 2013 at 13:40
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Bandy, Make sure it is abraided before it's put back, this gives the copper particles chance to start oxidising thus work properly. We keep an eye along the water line of ours and all's looking clean and crisp, so the poor Grey Mullet has had to find other feeding sites ! ------------- Jon B 470e http://www.norse-king.blogspot.co.uk |
Posted By: alettaenmarcel
Date Posted: 26 February 2013 at 16:24
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Hi Bandy
Now it should be must faster.
See you at Scheveningen -Cork race for your Revange?
greetings Marcel Blomsma Hanse 370 Together ------------- Kids Dingys 72-79 ,Several Windsurfboards 79-86 OK dingy competitions 86-92 , Trotter Pandora Race 92-98, Friendship 28 Sport 98-05, Hanse 370 06-...... |
Posted By: Bandy
Date Posted: 27 February 2013 at 16:28
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Hi Marcel, It will probably only get faster when we will throw out a ton of stuff..... We will not go to Cork. The plan is to head for Brest already half of June. I am trying to get 6 weeks of vacation so that would give us plenty of time to sail around in Bretagne and Normandy. ------------- Bandy, Hanse 411 2003 |
Posted By: Thunderbird1
Date Posted: 02 May 2022 at 19:05
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This looks great. Did you have any rust spots where keel joins the hull? How was it treated before Coppercoat was applied? How is it performing? The antifoul has been stripped from our 411 and the hull is partly sanded. Not sure what to do about rust spots. Any help is appreciated. Thanks
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Posted By: CharlesP
Date Posted: 03 May 2022 at 10:16
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Coppercoat told me recently to clean off the rust and treat with corrosion resistant epoxy. Charles ------------- 'MERIDIAN LADY' 320 Nr 536 2010 Medway |