Antifouling results

[Lizzie_B]

Re: Marina based boats and boats on moorings.

Had your mate remembered that copperbot is supposed to be lightly abraided each season? Having said that, we used copperguard, since 1999 season and this season it was still fine. We usually come out only for about four to five weeks each year around April/May - depends when all those who missed out on winter sailing season go back in and just jet wash and scrub with a brush. Maybe it's the timing, because boats in neighbouring berths seem to be much more heavily fouled. Perhaps there is something in the previous suggestion of timing.

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[Coppershield]

Hi, Have You try-out the yard-man's recall of the condition, your paint was in?
Thank You.

Muzaffer

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[Evadne]

No, but hopefully I'll see him on Sunday when I'll have a word. I'm pinning my hopes on their common practice of pressure hosing the bottom off while she's in the slings then chocking her up leaving two muddy stripes near the waterline for me to clean off. There may be enough left to make a comparison, but knowing my luck they'll have been extra scrupulous this year and removed every barnacle. If so, I may just repeat the experiment next year.

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[Mirelle]

Good point

The Deben does seem to be particularly bad, and the fouling that most of us sufer most from is not barnacles, but the nasty type of weed known locally as "shaving brushes". In my case (on mooring from March) we got a crop of barnacles by June, but between June and July we grew "shaving brushes" to a length of 2-3" all over the boat, (which, er, stopped, as a result!)

This weed growth suggests nitrates.

The Deben is surrounded by farmland - its own catchment is in the Suffolk clay, but the estuary espescially the north bank is very light land which is farmed quite intensively.

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[Johnjo]

Aod, your probably right about polishing the prop, I bought mine new last winter and spent a
evening at home polishing it to a very high finish.

Then applied the Lanolin after it was fitted to the boat, So thinking about it now,
not sure if it was the Lanolin that kept the prop clean or the polishing !

But to be on the safe side, seeing that i had a clean prop all summer will be applying it
again next season. plus a very good polish.

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[brianhumber]

I used XM couple of years ago, more like weed fertilizer than antifoul. This also backed up by couple of other users in Chichester.

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[brianhumber]

I am in Itchenor reach. If I use Micron or the Italian made from GBW ( sadly now banned in UK but not in France) then fouling is minimal. Used XM for 2 years - bloody crap which was the result others and the Ferryman also got.

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[Aja]

Boat on swinging mooring on the lower Clyde. One coat of Blakes Tiger Extra.

Slime on hull but weed growth on rudder. Not sure of cause of that.

Prop and propshaft same weed as rudder but not excessive.

Boat in water from end March to mid October, never scrubbed during season.

No barnacles this year.

Donald

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[Evadne]

Taking off the (so-called) self eroding antifoul last year I can see which areas it erodes from and which it doesn't. I can't include the rudder, it's wood and suffers a different regime than the grp but the grp under the turn of the bilge and aft towards the rudder and prop definitely erodes much less than the forward third of the boat. It was several millimetres thicker. This would be expected really, given the way water flows over a solid body but Donald's observations imply that weed prospers in a low flow regime. Again not entirely unexpected. Most cruising boats spend most of their time anchored in a tidal flow. If you lived in a marina full of weed eating mullet, the results might be reversed, I suppose.

I think one thing I've seen so far from this thread is that there's not much difference between Micron and Tiger, XM is rubbish, Flag is less widely used but well regarded. What I'd really like to know ('cos that was the subject of my failed experiment) is whether uneroded antifouling rubbed down just before re-launching is as effective as freshly applied stuff.

Also, the longest beard will always be on the boot-topping, because its in the sunlight, but its a real pain to scrub off unless you have a pontoon berth. Anyone found any magic paints? Or has anyone ever tried any of those patent hull-scrubbers?



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[whisper]

Lanolin

I couldn't get Lanolin when I wanted it in July so applied lard on our outdrive instead, after scraping off a large no. of barnacles. Boat coming out in a couple of weeks time so I will report back then.

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[Magic_Sailor]

Soft as a babys bum

I've not used Lanolin.

I've only scraped off the barnacle bills - but there's not been all that many. Yearly growth minimal.

Magic

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[Toutvabien]

Plastimo 1.2

Have to say that I have been impressed with the results of this. Used on a swinging mooring on the River Crouch, lots of agri wash off from surrounding farms, and very good results. Just a little slime on th bottom, unlike the boot top where Flag has had very little effect at all, long green weeds hanging down from the water line. It does though demonstrate the contrast betwen the effectiveness of the Plastimo and the lack of impact of the Flag.

Horses for (water) courses!!

Paul.

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[Neil_M]

More good points

but let's look on the bright side - my days spend on the scrubbing posts at Waldringfield (strategically positioned twixt sailing club & pub, for those that don't know the place) were amongst the most sociable of the year, chewing the fat with old acquaintances & making new ones...

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[Mirelle]

All right, now I hate you!

They have a length limit of 35 feet - we have a counter stern which makes us 37ft, so instead of using the posts within a mile of our mooring and paying a fiver, we have to go down to Felixstowe Ferry and pay a tenner!

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[Neil_M]

Now that\'s a stern counter!

;o))

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[yoda]

Re: Plastimo 1.2

Have to agree about the Plastimo, I lifted a boat this week that hasn't been scrubbed all season. Light slime except where the pads were and new hadn't been applied, here the barnacles were thick. May try it myself this winter.

Yoda

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[Goldie]

Re: Plastimo 1.2

I've had very good results with 1.2, both on the west coast of Scotland and in the Falmouth area. Light slime, nothing more. I "scrub" with a sponge and scuba gear once or twice a year, but it only gets a light wipe. Impressed.

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[Evadne]

Evidence

A final note, in case anyone's still following this: I checked where the slings were and from the remains of weed it is clear that the newly antifouled side had far less fouling than the one with the previous year's a/f rubbed down with wet & dry.

My conclusion is that you have to antifoul each year (with Micron anyway) even if it hasn't all eroded away. I might try just the one coat though, to reduce build-up.

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[chas]

Re: Plastimo 1.2

Swininging mooring in the R Exe. I used plastimo 1.2 up to this season and changed to the new Blakes criuising performeer. Plastimo was goodish but did not discourage mussels. This season, no mussels, far fewer barnacles, no weed. Ill be using it again next year!

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