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Voyager
Master Marine Consultant

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USA
5352 Posts
Initially Posted - 05/03/2009 :  16:43:18  Show Profile
As I've reported recently, I wanted to completely scrape the old bottom paint off <i>Passage</i>.

I started back in March with my goggles, respirator and paper hood and scraped and scraped the bottom paint. It more or less crumbled under the manual scraper tool. I collected all the chips in a huge tarp, and disposed of the residue according to the yard's requirements.

Here's a shot of the bottom partially scraped:



While I worked at a good pace, it was still a lot of work, and my upper torso and arm strength has improved considerably. It took me about 4 weekends to clear the old paint.

After the paint was gone, I used a palm sander with 80 grit to roughen the gel coat (it was quite smooth surprisingly), I filled in a bunch of holes and chips and rubbed the bottom down with Acetone.

This is what it looked like at that point:



I went to Boater's World and bought a few gallons of Interlux Barrier Coat at a great price, and primed the bottom with several coats.

Timing is important, as you want the surface to remain a little bit uncured, but not tacky, when you apply the bottom paint, so that the barrier and bottom paint will fuse. I painted the first bottom coat red. Then I waited a day and painted it blue.

I saved just a little bit of each coat to cover the five jack-stand pad locations. I got the yard to move the pads and finished the bottom in two days.

Here's a shot of how it came out. The before and after are quite striking.



Most of my yard mates came by and remarked.

Next year I will tackle the Poliglow, the bootstripe and the rub rail. I hope to brighten her up a little this year with a good washing, bleaching and waxing.

I hope to splash her this coming week.
Bruce Ross
Passage ~ SR-FK ~ C25 #5032

Port Captain — Milford, CT
Edited by - on

GaryB
Master Marine Consultant

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USA
4303 Posts
Response Posted - 05/03/2009 :  17:31:55  Show Profile
Nice job Bruce!
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John Russell
Master Marine Consultant

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USA
3444 Posts
Response Posted - 05/03/2009 :  17:40:50  Show Profile
Looks great, Bruce. Congratulations on a job well done.
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Dave5041
Former Mainsheet Editor

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USA
3758 Posts
Response Posted - 05/03/2009 :  18:40:28  Show Profile
Looks great! It sounds like you're using the same approach as I am - one zone at a time. Exterior cosmetics above the waterline will probably be another year for me.
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hillerji
1st Mate

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USA
37 Posts
Response Posted - 05/04/2009 :  11:52:07  Show Profile
Bruce,

That is absolutely shimmering! Keep the rail under so you can show it off more......
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 05/04/2009 :  12:14:32  Show Profile
<i>Just</i> what I was <i>gonna</i> do but I never got a "round tuit." (All that scuzzy hard paint under there was from <i>my</i> PO.) Good work, Bruce!
Edited by - Dave Bristle on 05/04/2009 12:15:46
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Nautiduck
Master Marine Consultant

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USA
3704 Posts
Response Posted - 05/04/2009 :  12:58:51  Show Profile
Congratulations, she looks great!
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Deric
Captain

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USA
408 Posts
Response Posted - 05/04/2009 :  17:34:16  Show Profile
Very nice Bruce.

The bottom of your boat looks great, don't even bother to cover it up with water; leave it on the stands all sailing season so we all can enjoy the fine artistic work you have done ;-)

Best,
Deric
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Rich G
Navigator

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226 Posts
Response Posted - 05/13/2009 :  07:13:50  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Voyager</i>
<br />I painted the first bottom coat red. Then I waited a day and painted it blue.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

Pardon my ignorance, but what's the advantage of using different colors of bottom paint for the different coats?
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 05/13/2009 :  08:17:50  Show Profile
Because ablative paints gradually wear away, and because most ablatives are good for multiple seasons (even when hauled out for the winter), you can avoid piling unnecessary coats of heavy paint on your hull by making a "signal coat" of one color, followed by periodic coats of a contrasting color (same type of paint). When you see signs of the signal coat, it's time to add a coat of the other, but not necessarily to the entire bottom.
Edited by - Dave Bristle on 05/13/2009 08:22:13
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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.