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  1. #1
    Join Date
    Apr 2005
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    417

    Default Hull cleaning with Y10

    I have bought some Y10 to clean the 'yellow' discolouration off my hull topsides, and would like some advice of how best to use this product:-

    What to use for application?
    How large an area to apply?
    Approximate coverage area of a standard size Y10 tub?
    Do you need to 'scrub' the surface?
    Can it be used on 'antislip' moulded deck?
    How long to you leave it to work?
    What do you use to wash it off?
    How soon after should you apply polish?

    Any hints / tips would be most appreciated.

    Many thanks,

    Allan

  2. #2
    bazobeleza's Avatar
    bazobeleza is offline Registered User
    Location : faro, portugal, & Liverpool for my sins, this year more portugal than l'pooll
    Join Date
    Nov 2005
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    Default Re: Hull cleaning with Y10

    use oxcalic acid to get the yellow discolouration off before a quick y10 polish followed with wax. Y10 alone wouldn't touch the yellowing on my topsides.
    happiness is a 10kva genset and cold beer

  3. #3
    Join Date
    Nov 2005
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    80

    Default Re: Hull cleaning with Y10

    Y10 contains oxalic acid. I brush it on with a cheap paint brush leave it 10 minutes, and then wash it off with water & a sponge. It sticks well so needs a bit of effort to wash off.
    1 tub lasted for two cleanings of my 22' boat .

    One thing to be aware of... This stuff does an amazing job of getting rid of brown staining. So it becomes very obvious which bits you have used it on and which you haven't.

  4. #4
    Join Date
    Jul 2005
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    5,016

    Default Re: Hull cleaning with Y10

    Agree, except I leave it for about 20 minutes.

    I have found it works best on a warm day.

  5. #5
    vyv_cox's Avatar
    vyv_cox is offline Registered User
    Location : North Wales, sailing Aegean Sea or Menai Strait
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    May 2001
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    15,180

    Default Re: Hull cleaning with Y10

    Agree entirely about the temperature. It never seems to work in the winter in the yard but is fine on the water in summer. I have found the oxalic acid based powder to be far more effective and not temperature dependent. I used to use Teak Cleaner but now there are products specifically aimed at hull cleaning.
    Answers to some technical queries at http://coxengineering.sharepoint.com

  6. #6
    Join Date
    Dec 2001
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    1,525

    Default Re: Hull cleaning with Y10

    The stuff is so good at getting off the yellowstain that it can leave a patchwork of treated and untreated sections on the topsides as pointed out on this post. If this happens, you have no option but to go over the whole topsides with a mild abrasive such as Farecla to blend in the sections. Wash off thoroughly with fresh water and then apply a good wax polish. If you don't polish, the hull will get grimy again in no time.

  7. #7
    Join Date
    Nov 2005
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    661

    Default Re: Hull cleaning with Y10

    W5 limescale remover from Lidl works brilliantly and is 10th the cost of Y10.

  8. #8
    Join Date
    Jul 2005
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    5,016

    Default Re: Hull cleaning with Y10

    That's a useful tip. Does Lidl W5 contain oxalic acid?

  9. #9
    Wight Dawn's Avatar
    Wight Dawn is offline Registered User
    Location : Western Scotland
    Join Date
    Aug 2002
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    1,645

    Default Re: Hull cleaning with Y10

    To answer your questions:
    Apply with an old paintbrush (or a cheap one).
    Cover up to about 4 square metres and stop. Leave for about ten - twenty minutes. Cover the next four square metres and start washing off the first bit.
    A tub will cover your hull about twice or more.
    You should not need to scrub, but it is primarily a STAIN REMOVER. If the hull is dirty, use a CLEANER first, such as International Hull Cleaner. But watch this thread for lots of posts telling you it is a waste of money and that there are cheaper cleaners. I would tell you myself but can't remember which ones work.
    I don't use it on decks as it is not a cleaner.
    How long? answered already.
    To wash off, use water. I often use seawater as I usually use it to remove yellowing during the season when the boat is on the mooring. I do not advise this, as it leaves salt crystals, but I hate wasting precious fresh water!
    Polish once the hull has dried off.
    Ken

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