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Old 18 June 2015, 08:03   #1
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antifoul smoothness

My boat will potentially spend some time afloat this season, upto a month at a time. I am thinking hard racing antifoul

Ive always been afraid of antifoul and its impact on speed. What is the smoothest antifoul any of you guys have used, and have you any pictures of the smoothness please, the sample cards tell me nothing.
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Old 18 June 2015, 08:18   #2
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Honestly, unless it has already been antifouled i wouldnt bother.

give it a really good clean / polish before it goes in, then lift scrub and repeat when it comes out.

Use some Y10 to get rid of any staining. the biggest problem we have is fouling around trim tabs.

Ours is antifouled and i reckon it takes around 3 kts. ours stays in year round with lift and scrub every 4 months or so.
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Old 18 June 2015, 08:29   #3
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Don't do it!!! It makes me wince just to think about it!

A month afloat is generally no big deal. If you are taking regular trips at speed, it will also reduce the fouling rate. A good pressure wash and Y10 if needed will suffice.

I used Hempel's "hard racing" once. It was quite stippled when rollered on cold.

IIRC, the hard antifouls aren't that effective anyway, so you'll have to wash her either way. I still say "don't do it!"
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Old 18 June 2015, 08:37   #4
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Quote:
Originally Posted by gtflash View Post
My boat will potentially spend some time afloat this season, upto a month at a time. I am thinking hard racing antifoul

Ive always been afraid of antifoul and its impact on speed. What is the smoothest antifoul any of you guys have used, and have you any pictures of the smoothness please, the sample cards tell me nothing.
https://www.auroramarine.com/store/repelin.html

This stuff works pretty well.
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Old 18 June 2015, 09:14   #5
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Plus it will negatively affect the resale value of the boat,you could always wash the hull after a couple of weeks to keep on top of any growth
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Old 18 June 2015, 10:36   #6
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Guys sometimes AF is a necessity. I moor my rib on a swing mooring in a heavy fouling area for six months of the year. I would not have as much time on the water if was not for AF. Therefore AF would not effect the price as far as I'm concerned in fact it would a bonus as I would not have to start the process. Just my situation but I'm sure others on here will recognise the issue


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Old 18 June 2015, 11:06   #7
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Our 6.5 has been antifouled with some fairly hard stuff (Iím sure Searider will confirm the exact type). We normally get it re-applied every Easter but not so far this year.

5 weeks growth on the antifoul in May / June was horrendous. There was literally green algae type plants underneath the hull and it was a pain to jetwash off. I never even bothered with a speed run!

Interestingly, we changed moorings (both on the Hamble) last year and the current mooring seems to attract a lot more growth. I guess this is a function of light and current.

The point Iím getting to is that each mooring scenario is different and this will affect how much growth you do or do not get. This will be a factor in deciding if you want to get it antifouled or not.

As an FYI, the rib had some really chalky antifoul on it when we bought it so I canít say what the Ďpolished hullí speed ever was.

As a tactic, why not try Zippys approach of super clean polish hull, lift out after a month and see what you think? I'd rather a bare hull too but the boat is moored all year round.
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Old 18 June 2015, 11:07   #8
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You may find a wax polish may assist if only on a mooring for a limited time, with a bit of a scrub down/reapplication in between.
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Old 18 June 2015, 16:09   #9
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If the anti foul is sprayed on it is better speed wise.
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Old 20 June 2015, 06:51   #10
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Thanks all. Not the answer I wanted but I hear your concerns. Seen someone on here used copper coat and gained speed. Stl can't find any final finish pictures that look glossy so I presume it's also a rough finish.

I bought a boat with antifoul before. Never bothered me, but I wasted a fortune trying to get it all off after and failed
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