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Old 29 April 2014, 16:53   #1
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crustations on hull tubes

Hi guys, cleaning the Humber ready for this year and have areas of small crustations(incorrect spelling I thinks) on gelcoat and tubes, they do scrape off but leave a chalky residue. Have looked on the threads and have become a little confused as to what to do. Humber say they use a Hrydro something or other but I can not buy!. Please can you point me in the right direction.Oxalic acid....Rib revive etc. cheers Phil
ps what are your thoughts about Antifouling the rear end of the tubes where they sit in the water, boat is on a mooring 4-5 months, it usally keeps clean but last year these little buggers got a hold!
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Old 29 April 2014, 17:21   #2
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Clean with bathroom descaler. An ablative antifoul will work - don't key & prime the tubes
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Old 29 April 2014, 17:25   #3
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Thanks......what is Ablative? excuse me!! cheers.
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Old 29 April 2014, 17:28   #4
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Thanks......what is Ablative? excuse me!! cheers.
Linky

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Old 30 April 2014, 13:20   #5
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Ablative.................to wear away!......I thank you for linky
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Old 30 April 2014, 13:25   #6
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tubes

Forgot to ask........any ideas about taking the barnicals off the tubes,or still to use the bathroom cleaner? cheers
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Old 30 April 2014, 13:35   #7
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(That reminds me of George III's pet crab. He was so upset when it died that he insisted they name a railway station after it. To this day that terminus is still known as King's Crustacean.)
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Old 30 April 2014, 13:44   #8
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Forgot to ask........any ideas about taking the barnicals off the tubes,or still to use the bathroom cleaner? cheers
I only found this out by being a bit lazy, but the best way seems to be to scrub all the weed off with a stiff brush as soon as it comes out of the water, leave the barnacles for a week or so to dry out and then just scrape them off with a blunt plastic scraper. Took me about 10 minutes to get them all off mine this winter.
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Old 03 May 2014, 04:32   #9
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Well we have a humber that's tubes sit on the water, drying occasionally, on a swim mooring for 4-5 months. Problem with AF on the tubes is it comes off too quick.

We ended up putting extra ribbons strake, the thick shiny black stuff, on the underside of the tubes to protect the hypalon. Worked a treat!!!

Before

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Hi res Anglesey pics

Alex Whittaker / Shedpix Donations for Round Anglesey Macmillan 2014 https://www.justgiving.com/Rib-net
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Old 09 May 2014, 15:56   #10
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Good idea

Thanks for that info, where did you purchase required material etc and did you do it your self?. Cheers Phil
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