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 Catalina/Capri 25/250 Sailor's Forums
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 VC-17 Question		  New Topic  Topic Locked
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Bruce Baker
Captain

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USA
402 Posts
Initially Posted - 03/12/2009 :  10:38:10  Show Profile
I have been using VC-17M on my C-25 for the past years and love it. It produces a nice fast bottom and is easy to re-paint. The bio-lux helps keep the slime down on the slimy Potomac.

Now I have a new boat (S2 7.9) that the previous owner had painted with VC-17. In recent years, he dry-sailed the boat, so most of the VC-17 is gone and the bottom is mostly white gelcoat. My marina says I need to put on a coat of primer or else the VC-17 won't stick. I put the VC-17 on my C-25 without primer, and it seemed fine.

Do I need a primer, and if so, what kind?

Thanks,
Bruce Baker
Falls Church, VA
"Yee Ha" 3573
'83SR/SK
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Steve Milby
Past Commodore

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USA
5895 Posts
Response Posted - 03/12/2009 :  12:19:57  Show Profile
Bruce, I don’t have the answer, but if I was you, I’d call the manufacturer’s 800 customer service number and talk to one of their tech people. It’s free, and you’ll get the best, most reliable info from the people who know their products better than anyone. Modern
antifouling paints contain all sorts of exotic substances, and they can be very finicky about how they are applied. I’ve heard enough tales of people who have had their paint peel and slough off after a short time to take any questions like yours lightly. If we give
you bad information, you could end up having to strip the bottom, instead of sailing your new hot rod.

When I was getting ready to barrier coat my C25, the Interlux tech guy told me that the bottom paint would bond to the barrier coat, eliminating the need for a primer. If your C25 was barrier coated, that could explain why the paint bonded to it without applying a primer.

Incidentally, one of the most competitive racers in the Solomon’s Island area, where I race a lot, is an S2 7.9 named Spinnster, which has a mostly all female crew. I’ve never seen anyone get as much out of an S2 7.9 as that crew. I’m pretty sure you’re going to like the boat!
Edited by - Steve Milby on 03/12/2009 12:27:22
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pastmember
Master Marine Consultant

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2402 Posts
Response Posted - 03/12/2009 :  13:21:30  Show Profile
I am so glad there is no marina where I sail, after 5 years on this forum of listening to the things they tell people I am convinced that they are all incompetent.
No, BARE FIBERGLASS: Begin by scrubbing well using soap and water and a stiff brush. Rinse with fresh water. Wipe with Fiberglass Solvent Wash 202. Wipe clean..
Edited by - pastmember on 03/12/2009 13:22:30
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Steve Blackburn
Master Marine Consultant

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Canada
1091 Posts
Response Posted - 03/12/2009 :  13:50:19  Show Profile  Visit Steve Blackburn's Homepage
I went without a primer on bare very clean fiberglass. no problems. Paint is sticking very well after 1 full season and rubbing on the trailer. I do have a few spots, but think that has mostly to do with rubbing on my dock.
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Nautiduck
Master Marine Consultant

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USA
3704 Posts
Response Posted - 03/12/2009 :  15:00:14  Show Profile
You do not need primer.
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 03/12/2009 :  16:17:41  Show Profile
[url="http://www.yachtpaint.com/USA/hotlinks/fiberglass_paintguide.pdf"]Interlux Bare Fiberglass Boat Painting Guide[/url]
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Bruce Baker
Captain

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USA
402 Posts
Response Posted - 03/13/2009 :  15:46:11  Show Profile
Thanks to all. I can't wait to meet the Spinnsters! I hope to do some regattas in the bay soon.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.