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 hull paint removal		  New Topic  Topic Locked
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cmckitrick
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USA
119 Posts
Initially Posted - 04/18/2005 :  00:36:18  Show Profile
I was hoping to get away with repainting the hull but I notice several areas where the paint is coming off in chunks. I dont't think it was that long ago that the PO took off all the paint. Can anyone tell me if they think it is time for removal or can I get away with slapping a few coats on. Also how do you remove it? Is that a big dea? Thanks.
Charlie McKitrick
Norwell, MA
Valiant Lady... for now
'81 C 25 SR/FK
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ClamBeach
Master Marine Consultant

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3072 Posts
Response Posted - 04/18/2005 :  09:48:52  Show Profile
It's a messy job to properly prep a hull for bottom paint. If you do it yourself it involves a quality disk sander and plenty of disposable coveralls and respirators. An alternative, if available in your area is to have the hull blasted... usually done these days with soda, walnut shells, ice or dry ice.

There are quite a few old threads here about bottom jobs... the search utility should turn them up... also check out the link to the refit site I posted a few days ago for a realistic look at a DYI job (done very well I might add).

If you take the hull down to bare gelcoat (as it sounds like you should) I'd suggest putting an epoxy barrier coat on... no worry about blisters then.

Of course, you could slap a 'get by' coat on for the season... if you do this I'd recommend Interlux "Fiberglass BottomCoat ACT". It's fairly inexpensive, very 'tolerant', seems to work pretty darn well for me.

If you go with an "Ablative" bottom paint in the future (over a good base) you shouldn't have to worry about paint buildup and the messy removal job in the future. A pressure wash followed by a light 'brillo pad' scrub or sanding and you're good to go for a renewal coat.
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cmckitrick
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USA
119 Posts
Response Posted - 04/18/2005 :  11:35:19  Show Profile
Thanks, Bruce. That was much appreciated.
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existentialsailor
Master Marine Consultant

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USA
1180 Posts
Response Posted - 04/18/2005 :  11:46:19  Show Profile
Charlie,

I just finished stripping my hull to gelcoat yesterday. There were 4 different types of paint on it. It took me about 30 hours of sanding. I used about 40 sanding discs. My sander hooks up to a shop vac which I put a HEPA filter in to replace the stock one. I wore a respirator, goggles and a face sheild. I also washed the entire hull down with acetone before and after sanding. Total cost of materials was about $200.
I will be putting on a barrier coat and then ablative paint. Hopefully, I will not have to do this to this degree in the future, but since my boat had not been taken care of by the PO's, I wanted to start off right, or at least try to.
Make sure you put tarps on the ground and even around your boat so any dust doesn't blow away if it's breezy.

Hope this helps.
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 04/18/2005 :  13:54:40  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 existentialsailor</i>
<br />...I will be putting on a barrier coat and then ablative paint.<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Rick,

What about a slick teflon bottom paint like VC-17M for your racing hull?
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existentialsailor
Master Marine Consultant

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USA
1180 Posts
Response Posted - 04/18/2005 :  14:57:10  Show Profile
Don,

Her racing days are over. Even if they weren't, I'm too inexperienced to be trying to race her. I may have a different story after a season or two with her.
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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.