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Thread: Antifouling!

  1. #31
    Join Date
    Mar 2002
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    Default Re: Antifouling!

    Quote Originally Posted by Hurricane View Post
    Please try again.
    Fine now!

  2. #32
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    Default Re: Antifouling!

    Quote Originally Posted by mikef View Post
    What I do remember though was she got quite fouled whilst she was berthed in La Spezia so that is possibly where some of the fouling comes from.
    Aha, yeah, I didn't consider that you stopped there for a while, before reaching PV. That pretty much explains everything, because LS is notorious for aggressive marine growth.
    Allegedly, that has to see with the large Navy base nearby, but whatever the reason, there's a widespread consensus on the fact that the area is particularly problematic in this respect!
    Last edited by MapisM; 14-02-18 at 00:12.

  3. #33
    Join Date
    Apr 2011
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    3,655

    Default Re: Antifouling!

    Mike I know from a previous thread— new upholstery covers ( the Mrs 10% of what ever commission- lady ) you are short on time , but after a short ish while in the SoF , it dawned on me that there was a disparity between price / value / quality.
    So basically I started to DIY the annual .
    All started when the gardienne was not ,could not be bothered changing the tiny bow thruster anode in the Sun Seeker .
    I had 2x BT gearboxes let go at €1k a pop .Ok ish ? That’s boating , sure does sharpen up handling skills , but the real potential imminent car crash is I purchased ( 2nd time round *) the last remaining g box part in the UK - as they were out of production.
    So any more hassle = whole new unit . It a pig of a job , about 25 mins with an adaptation spanner turning about 1/8 th each time and a long bolt - if it wasn’t for my surgical experience I can see why it defeated other blokes .

    It takes a week basically of yard time to book , and you need a mate , two blokes ,this inc a hull polish too . If you crack on you can get it back in by Thur Pm .

    There AF was not as good as what I use ,which is this Veneziani-Raffaello-Antifouling .
    It costs more , but you get what you pay for ,importantly it works in the SoF on the hull - see pics above in my other post ^^

    You see these 3 rd P ,s May quote one thing on paper and bill you ,then appply somthing else crappy .

    Regarding the sterngear —- theses nothing that worth chucking €€€ @ that works - so we now do nothing - as said get diving gear or pay a diver —- then again the pay back time is short with your own kit , and zero organisational ball ache .
    I actually enjoy cleaning em up tbh - not in the marina @ a nice anchorage 1st day on arrival .

    It’s the same with polishing the hull , they your 3p you hire will give it a once over - with sumit cheap , cos it’s quick , we use a two pack Dulon 2 , takes more than 2x time wise but lasts ( the globular water / was effect) all season .Dulon costs 2-3 x much / pack too .

    The maths if you like getting your hands dirty to stack up too , you save € 1000,s literally that easily offsets any down time back home if you are still working - ,more so if you are a principle and don,t need to be there physically ?

    Buts it was not the maths never was how I ended up doing the annual - it’s getting the job done properly/ better / correct .

    * typically in the SoF via the VP.Fr dealer I was quoted €1600 + tax for the 1st gearbox circa 2006 , it’s a VP — Bp 350 bow thruster ,
    I sourced on £800inc vat in the U.K. and posted it down for the engineer to fit .
    Next time it went say 2011 - corossion of the internals due to worn anode , the U.K. dealer said I had taken the very last part , next time would need a whole new bow thruster fitted - SoF engineer quoted €5k for this via the gardienne !!
    I think they had ran out of stock in Fr by then . I disappointed the Fr guys by sending them the 2nd gearbox to fit .
    Since I started to change to do the annual and the change the BT anode - no problem s

    You should not get growth on the stern in the SoF - like your ( mikeF,s pic ^^ ) if the AF is a up to the job and applied correctly .

    A lot of “clean hands “ locals pop into the yard Dailey to keep an eye on the guys they have commissioned, oversee the job etc .
    I realise that’s a luxury doing long range folks don,t have ,
    I,ve seen some horror s in the yard on absentee owner boats -

  4. #34
    Join Date
    May 2001
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    London/Antibes
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    21,838

    Default Re: Antifouling!

    Quote Originally Posted by petem View Post
    I'm keen to establish it there's an eroding A/F that will last me for two years (I remember being told that eroding A/F was no good for fast boats when I had my old Targa). Also, whether mid season pressure washing should be avoided with a self eroding A/F as the yard guys seem to be suggesting this be avoided.
    Micron 66/77 is definitely a 2 year product. But you have to do anodes. repaint flaps, etc, every year.

    I have been told many times not to use soft a/f on planning boats and I totally disagree. The m66/77 are not that soft and you want it to erode quite fast. I'm more worried about it building up too thick given that I'm keeping this boat a few years, then about it rubbing off. So I totally ignore those warnings for boat yards and just instruct them to apply m66/77

    Quote Originally Posted by petem View Post
    Thanks JtB and Mike. I believe JFM uses Micron 99 and gets two season out of it. So I think my approach will be to wait until the current paint stops working then get Micron 99 painted on. I assume that after two seasons a wash with the SCM jet wash (if we're still there) will remove most of it thus preventing build up.
    M99 is new and I heard rumours that it isn't as strong at antifouling, but that is just chit chat and I have no hard info. I never spotted any difference when they changed from m66 to m77. Last time (March 2017) I used M99 and did a short lift (to clean props) in August 2017 and it looked fine, but I'll judge when I lift out in 2018 in maybe April

    Just for ref here is my hull in March 2017 with M77 after a full year in the med. Not great pic but hull was clean as a whistle when lifted (apart from the props!). It got overpainted with one coat of m99



    Below are some older pics - this is lift out March 2015 after a year with M66 or M77. Hull bottom is uber clean. There is a very thin layer of gree algae sometimes above the chine, along the sides where there is a lot of sunlight, but it's very thin and doesn't affect speed. In my book this M66/77 stuff is the best there is. It totally stops weed and barnacles, it is soft so doesn't get too thick, and after a year you can jet wash it and use it another year (after touching up rudders and other leading edges that get a lot of wear, and the trim tabs)





  5. #35
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    Apr 2011
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    Default Re: Antifouling!

    Impressive pics
    Reflecting I think the stuff I use Veneziani-Raffaello is a eroding type too , .
    We get a WL similiar , on the sunny side too - as you say minimal effect on performance.Infact I sometimes end of season just take a scraper to it for the sake of neatness .
    So important bits are fine .

    As I infer sumits not quite right with MikeF,s looking @ the transom pic .

    We can,t get anything to stick our rudders given up on that .

    How ever with the sterngear I have noticed if you go on a long run circa 1800 rpm with them fouled they sort of self clean .
    The speed increases and the load / EGT s as the journey progress decreases .
    The mid section of about 1/3 of the L of the rudders just behind the propwash clean up like new , the ends stay fouled .
    It’s the hub 1/2 of the props that’s self cleans down to the metal , the blade tips stay fouled .

    Anyways with the outdrives boat it would not plane ,stalled @ 2000/2500 rpm with a slightest bit of 8hit on the duoprops .

    It’s this important imho detail PeteM needs a strategy to deal with , even say a 3 week gap between visits in the season .
    You can,t keep realistically and ball achingly keep organising the “ free “ lift or what ever @ SCM amongst the 3 syndicate members .
    You know take a flyer arrive late Fri Pm , then have to wait until Monday , if it’s not a Sp Bank hole or the lift operator is “ off “ or the lift is having “ maintenance “
    Long W/E - home Tue etc ——- canning those KAD ,s with fouled props = big bills arriving any time soon !

    It’s either hire a diver
    Or somebody’s gotta hand clean them .

  6. #36
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    May 2001
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    Default Re: Antifouling!

    Quote Originally Posted by Portofino View Post
    As I infer sumits not quite right with MikeF,s looking @ the transom pic .
    .
    What like the prop is on the wrong way round?

  7. #37
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    Mar 2002
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    Default Re: Antifouling!

    Quote Originally Posted by jfm View Post
    What a/f did you have on those props, none at all, as I understand?
    And if so, how long did it take to get to those conditions?

  8. #38
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    Default Re: Antifouling!

    Quote Originally Posted by Hurricane View Post
    M, I meant to ask before but I forgot. Do you know who the builder of your props is?
    They get my vote for the most advanced props posted so far in this thread - and not because they are shiny in your pics!

  9. #39
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    Default Re: Antifouling!

    Quote Originally Posted by Portofino View Post
    It’s the hub 1/2 of the props that’s self cleans down to the metal , the blade tips stay fouled .
    Beware, that's usually a symptom of some degree of cavitation. Look out for tipping in that area.

  10. #40
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    Default Re: Antifouling!

    Quote Originally Posted by mikef View Post
    What like the prop is on the wrong way round?

    Transom which is presumably in a lot of shade should look a lot cleaner , no worm casts ( or what ever they are ? ) - just slime at the most .If it’s been parked up a few months prior to its annual lift ?

    @ least JMF has a pic of the product allegedly put on which tally’s with his instructions, and presume reconcile s with any invoice —— if he wasn’t there personally to oversee the job .

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