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BARGES: All about barges and barging - building, buying, maintaining, equipment, handling on the water, etc. (Public)
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TOPIC: antifoul or normal paint

antifoul or normal paint 06 May 2021 09:00 #122930

  • Colin Stone
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I use Red International Interspeed 6400.
The hull certainly stays free of animal growth and any light weed on the below waterline sides in sunlight just brushes off. Having always had anti fouling, I haven't noticed any effect on fuel consumption. But at around 2.5ltrs/hour I not complaining!
It is expensive and I think also a trade off against docking intervals. When I was last on the Vreeswijk slip in 2017 after 7 years, ES-TRIN survey interval, with a clean hull, other vessels with normal paint were on the slip and encrusted with mussels after only 2-3 years. But I didn't know where they had been travelling.
And getting the mussels off mechanically takes considerably longer than literally washing down the anti fouling. Which was much appreciated as I was doing the job DIY.
Starting with a nice clean hull, I would antifoul.
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Colin Stone
Barge Register KEI
www.luxe-motor-kei.co.uk
DBA - The Barge Association
DBA - De Binnenvaartvereniging
DBA - L’Association des Péniches de Plaisance

antifoul or normal paint 06 May 2021 08:11 #122929

  • Balliol Fowden
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Correction : “...... when the tide was above canal level.” Sorry!

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antifoul or normal paint 06 May 2021 08:10 #122928

  • Balliol Fowden
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Hi Richard,

Yes, Veurne had mussels bad until a few years ago. On one docking (2013?) we had a 50mm layer of mussels all over, interlaced with which were tube worms feeding on the mussels. Then there was an incident where sea water entered the canal between Nieuwpoort and Dunkirk, the canal being at half tide level. The Flemish blamed the French at Dunkirk and the French blamed the Flemish at Nieuwpoort. I suspect the latter since coincidentally one of the sea lock gates at Nieuwpoort was removed for protracted repairs, meaning that for quite a long period the lock could only be operated when the tide was above sea level.

The water is now mildly brackish, and gets worse when there are drought conditions with limited fresh off the land entering the canal and holding the salt down, to the extent that the canal was closed for a period one recent summer to stop boats stirring up the salt. Since about 2013 we have noticed some barnacles on the boarding ladder, and at 2018 docking the fouling was definitely barnacles, not mussels.

After applying anti foul in 2018 our hull stayed very clean but we did have a quite badly fouled prop last summer after the first lockdown prevented our usual spring cruise, and I am expecting a similar situation when we get back out there.

As said zebra mussels are an increasing problem in many fresh water areas and they are of course spread by boats moving from area to area. An infestation does also dramatically increase fuel bills. With anti foul our fuel consumption has been much lower than ever before, suggesting that even the normal light weed growths (that inland boaters have always tended to tolerate) contribute more drag than is imagined. The difficult conundrum is “which is worse for the environment : anti foul or not”?

Anti foul does markedly reduce fuel consumption and thus emissions, and will reduce the spread of invasive species such as zebra mussels, but at the price of leaching toxic matter. As far as cost is concerned I suspect that the extra cost of anti foul is easily negated by fuel savings.

Balliol.
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antifoul or normal paint 05 May 2021 22:20 #122926

  • Richard Cooper
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Mussels. Horrible things, had the boat out of water in Holland 5 years ago or so, Pressure washed the boat and shovelled up half a wheely bin full and after sitting in the sun for a few days that bin smelt awful. Boat now in slightly brackish water in Veurne so either the problem will have gone away or - more likely - be even worse.
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antifoul or normal paint 03 May 2021 22:27 #122888

  • Balliol Fowden
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Inland boats only tend to need anti-fouling if spending periods in a fouling area, the biggest problem being zebra mussels. Zebra mussel infestations, a relatively new phenomenon, can be encountered in various areas of both U.K. and European waterways. There is no rhyme nor reason to where you might find them. If you keep moving, particularly during the spawning season, then they are less of a problem or no problem. So, on either side of the channel, if you are cruising continuously during the season you are probably OK without anti- foul. If you are planning on staying in one area say April through June then perhaps ask the locals.

We finally applied anti foul for the very first time three years ago due to mussel infestations where we have our permanent mooring, having rebelled against the cost for some time, but early results are encouraging, indeed since then the ship has felt faster and more nimble than it has ever done ( in 37 years), but I don’t know what it will be like after 9 months of not moving at all in lockdown! I’m not expecting the prop to do much for starters!

Balliol.
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antifoul or normal paint 03 May 2021 20:46 #122886

  • Tom Larg
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Hi all, I am currently painting my hull that has been cleaned back to metal, 3 coats of 2 pac in and I don't know whether to use an antifoul or just a normal 2 pac hull paint. I will mostly be on canals for the next 2 years, hopefully crossing to France after that. I can't find any definitive advice on the web. Its a lot of extra money to use antifoul and I don't know if its necessary on the canal.

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