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De-paint or Repaint?

Old 03-23-2012, 10:58 AM
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Default De-paint or Repaint?

I just got a new (to me ) 23 ft Seacraft (1987 potter hull). The boat has old, blue bottom paint.

The boat will not be sitting in the water for extended periods of time, so ideally i would like to get rid of the bottom paint. (I know this is a process, and do not intend to do it myself) My concern: after doing some research, i found that a lot of times your hull, once the bottom paint is removed, has many deep scratches. I assume this leads to a-lot more expensive of a project.

So the questions are:

1.) Do i get rid of the bottom paint? or light sand and repaint the bottom paint to black?

2.) Any idea of what each will cost?

Thanks in advance
Old 03-23-2012, 11:51 AM
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Waaaaaay cheaper to just paint. Sand and fair out any bunps and chips in the old paint, and then re-paint the bottom. it will look good with minimal effort. removing the old paint IS going to reveal a bottom in bad shape. at minimum the gelcoat was sanded to get the original paint to adhere. for the money and effort involved with repainting (one days work and maybe $250 in paint and materials), its worth a shot before you go all in and remove.
Old 03-23-2012, 01:45 PM
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Originally Posted by AlexCT View Post
Waaaaaay cheaper to just paint. Sand and fair out any bunps and chips in the old paint, and then re-paint the bottom. it will look good with minimal effort. removing the old paint IS going to reveal a bottom in bad shape. at minimum the gelcoat was sanded to get the original paint to adhere. for the money and effort involved with repainting (one days work and maybe $250 in paint and materials), its worth a shot before you go all in and remove.
That is what will probably happen...

Anyone have an idea of what it would cost to get rid of the bottom paint and get the hull back to gel coat?
Old 03-23-2012, 02:12 PM
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I would just repaint if you can get away with it. Eventually the buildup of years of bottom paint becomes very heavy and the first few layers can start to give way. This is the reason I had to remove the old paint from my Mako.
Removing the old paint isn't cheap, however I'm not confident that you are definitely going to have problems with the hull. My Mako didn't have a single blister and only had one maybe two very shallow chips which were less than a finger nail in size. Those Potter built hulls were supposed to be very good so you might be just fine.
If it won't stick I would have it blasted and start over. Just an fyi, adding four-five coats of barrier paint and two coats of ablative paint is going to cost as much as blasting it. That's what I did but looking back, it might have not been totally necessary. I kind of got wrapped up in the whole event and went for it.
Old 03-23-2012, 04:47 PM
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all you can do now is either sand or soda blast and paint do not repaint or light sand over existing,,call for prices in your area if your not doing it yourself,,prices do vary and at this time of year you will take it in the short hairs,,simple economics
check out duralux or equivalant brand you may use,,for a gallon as mentioned $250-300 in paint and materials and 8 hours of labor at minimum,,,some paints are cheaper and theres a reason for such,,,since it will not be docked and your looking for basic protection flip a coin,,,or save a few bucks and pony up for the good stuff that will last a few years for your use,, for a piece of mind
the cherry is popped your not going back to just gel coat no more,,,not recomended IMO
best of luck!!
Old 03-23-2012, 05:46 PM
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Sound like there isn't really an option for me and i guess i was wrong thinking i (who i hire) could just sand it.

I think there is a third type of blasting though, walnut... it was recommended in a different thread..

any thoughts? expensive compared to soda or sand blast? not as effective?

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