New boat prep for anti fouling paint

R

RV Sam

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Sep 12, 2006
RO Number
23248
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14
I will be taking delivery of a new Sea Fox 210 Walk around in a few weeks. The boat will be in fresh water for 6 months each year. On my boat now I use VC-17 each year, works ok. My question. Can I just 150 grit lightly sand the gel coat and apply the VC-17 ? Or should I prime and or do something first ? Thanks.
Part 2.. As I will have no idea as to where the water line will be, can I do this ? I have means here at work to remove the boat from the trailer and place on blocks. I would like to paint the bottom and up the sides to a point where I know I'll be below the water line. Launch for a week or so to get a water line, or mark same day and remove boat. This time I can leave the boat on the trailer, bring the bottom paint up to the proper level which I can do on location, allow to dry and re launch.
 
Sam,

If I were you, I would contact the technical department at Interlux and talk to them about the necessary prep work, prior to painting with VC17. That way you can't go wrong.

As to the second part of your post, the surest way to determine the exact water line would be to keep your boat in the water for a week.

Bob
 
sanding will probably void the blister warrantee.
 
Had a friend who used sandless primer on his bare hull last year. He got excellent results with it. Great adhesion of anti-fouling paint after the first full season of use.
 
Dewax with solvent, then dewax again, then dewax again. When you're done with that dewax with solvent add a sandless primer and paint with your choice of antifouling paint. I'd put the boat in for a week or two with no bottom paint just to establish a waterline for your particular weight loading.
 
Thanks for the info guys. I called Interlux and they suggested the 2000 base first but never asked what the prep was because as "pdecat" said about sanding is a good point also. Now I'll call Sea Fox and see what they say if the 2000 needs to be applied to a sanded surface or if I can get away with the sandless primer as also suggested. Thanks much for the help, everything is easy when you know the correct way to do it... I'm headed in the correct direction now..
 
So now you're applying several coats of Interlux 2000 before the ant-fouling paint? I'd do exactly as Ken says, then sandless prime, barrier coats, paint. Some will sy that with newer vinylester resins, you don't need a barrier coat. choice is up to you.
 
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