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Antifouling o.k.?

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Ida View Drop Down
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    Posted: 02 May 2017 at 15:44
I picked up my new boat from the shipyard in Greifswald on 19.5.2016. After one week Baltic Sea and 3 days North Sea it was only in fresh water (in the IJsselmeer, Markermeer and Nordseekanal) on the way.

Overall, it was 8 months in the water and has been exactly 611nm totaly moved. On 3.Feb.2017 the boat was then taken out of the water and now stands in a hall. I am disappointed at the condition of the underwater vessel and I wonder if this is normal. My dealer says this is normal and gives me the advice to redo the underwater paint every year.

What is your opinion ?








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Rubato View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rubato Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2017 at 16:47
That is not normal in the least. There shouldn't be any peeling of the paint at all. It's true, some bottom maintenance of some kind (touch up, etc) is totally normal but the paint shouldn't be peeling. I believe that either the bottom wasn't prepared properly for the paint used or there was something wrong with the paint.
Steve

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Peter-Blake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peter-Blake Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2017 at 16:56
I am not sure if this is the antifouling what is peeling of. If so than there is a problem with the preparation as rubato mentioned.

One Question: Was your boat only taken out of the water without high pressure cleanng. Normally t is standart to clean with a high pressure cleaner, if you pay for it ;-)
The green stuff looks as if it was not cleaned. Maybe this is only dryed algae or
Algae mucus peeling of......

A anually painting of the antifouling s normal!


Edited by Peter-Blake - 02 May 2017 at 17:16
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Ida View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ida Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2017 at 21:38
My boat was taken out of the water because of a damage by a neighbourship. It was not cleaned anyway.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote StavrosNZ Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2017 at 22:49
Looks to me that preparation and primer were incorrect or missing, antifoul peeling like this indicates poor adhesion.
Stephen
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2017 at 12:26
It is of course normal to re apply antifoul every year. however, if the dealer says the peeling is normal ask him to show you another boat in the yard with the same condition.
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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Bruno View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bruno Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2017 at 16:43
This is not normal and antifouling in fresh water should last 2 or 3 seasons. I would claim the paint removal and new antifouling to your dealer without hesitation. Do you have an anti-osmosis protection on your hull? Non-compatible antifouling paint layers may react the same way.
Bruno

Hanse 400, 2010 Hull 660, Canadian flag sailing Lake Champlain, VT USA
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Post Options Post Options   Thanks (0) Thanks(0)   Quote S&J Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2017 at 20:32
If this is indeed the antifouling that is flaking it is not correct.  I have never seen anything like this however I think it is more likely that this is the slime / marine growth that has dried on and is now peeling in the warmer environment of the hall.  In future I would recommend you pressure wash the hull as soon as it comes out of the water - it is much easier to get the growth off when wet.  This is normal practise at most boatyards (although you will have to pay extra for it).

This is how Ningaloo looked after liftout at the end of last season.  I had a pressure wash but no other preparation at this stage.



Incidentally, Hanse are not responsible for antifouling new boats.  This is done by the dealer that you purchased through.  They should have discussed this with you and given you a certificate of the materials applied.  I had 5 coats of primer and 2 of antifoul (Hempel Mille NCT) as part of my commissioning package.  Last spring (after our first season) I applied another very thin coat (one 2.5l tin with diluted with 0.75l thinners) of the same antifoul.  As you can see the hull is very clean.

For those who might question my parsimonious use of antifoul, l I should point out that my usage pattern is an intense 3 months during the summer when the boat moves most days.  The remainder of the year, the boat is ashore.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scotchmist Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 2017 at 13:56
Hi Ida
That's not anti foul that's peeling off. It's either a completely wrong paint or dried slime. Even if the hull wasn't primed, I've never seen anti foul behave like that. It usually flakes off in patches if its got no adhesion. If you're suspicious it's the wrong paint send a sample to a lab or maybe International Paints and ask them to analyse it.


Andrew

Scotch Mischief Dehler 38 by Hanse
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Ida View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ida Quote  Post ReplyReply Direct Link To This Post Posted: 10 May 2017 at 06:19
Thanks to all. I am unsure now whether it is really the antifouling that peels off or if it is a biomucus as you suspect. Since I have 4 hours to drive to my boat I can not quickly check it.
After clarifying the problem, I will report on this forum.
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