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  #1  
Old 04-23-2013
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bottom paint

I have a Catalina 22 that spends essentially 100% of the time in a freshwater marina. I sail it about twice per week on average in a freshwater lake. I am a casual daysailer and not a racer. I recently ran my boat aground and have suffered some extensive superficial damage to the current soft-type antifouling paint. There is no fiberglass damage that needs repair thankfully, but the sailboat shop is recommending a complete bottom job, including power sanding and repaint. They are recommending a hard gel coat instead of using soft paint again. A quick Google search would seem to support this decision, since it is spending most of its time in the water instead of on a trailer or drydocked.

Choosing Boat Bottom Paint - How to Choose Bottom Paint for Your Boat

I was just wondering what people around here thought. The downside to the hard coat is that eventually it would have to be stripped off since it won't naturally flake and come off with sanding. But, even considering this, I'm inclined to go with the hard coat.
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Old 04-23-2013
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Re: bottom paint

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Originally Posted by blakeyoung View Post
They are recommending a hard gel coat instead of using soft paint again.
Gel coat and hard anti fouling paint are two completely different things. Be sure you are understanding what the repair shop is recommending to you.
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Old 04-23-2013
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Re: bottom paint

The advantage of a hard bottom paint is that it can be polished smooth. This is good for racers. The disadvantage is that it is more expensive. If it were me, I would just paint over those spots and keep sailing. The yard guy may have been noting that you have an accumulation of paint that needs to be removed. That would just involve a lot of scraping and repainting on your part.
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Old 04-23-2013
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Re: bottom paint

I think you are confusing the terms. the boat is covered with hard gelcoat. thats the white surface that the boat came with. the soft bottom paint is what you use if it is staying in the water. hard surface bottom paint is what you use if you are going to trailer the boat. and used by racers for a faster bottom. and with the soft bottom paint that you have it can touched up
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Old 04-23-2013
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Re: bottom paint

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hard surface bottom paint is what you use if you are going to trailer the boat.
No, hard paints cannot withstand prolonged exposure to air and therefore are unsuitable for trailered boats.
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Old 04-23-2013
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Re: bottom paint

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Originally Posted by Fstbttms View Post
No, hard paints cannot withstand prolonged exposure to air and therefore are unsuitable for trailered boats.
that would depend on how long they are out of the water. hard bottom paint is not going to be rubbed off like the soft stuff when trailering. not all trailer boats are stored on a trailer. ours is left in the water and has been trailered several times to other locations for regattas. only out of the water for a few days at a time
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Old 04-23-2013
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Re: bottom paint

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Originally Posted by overbored View Post
that would depend on how long they are out of the water. hard bottom paint is not going to be rubbed off like the soft stuff when trailering. not all trailer boats are stored on a trailer. ours is left in the water and has been trailered several times to other locations for regattas. only out of the water for a few days at a time
Well, as I said, "prolonged" exposure. When we say a "trailered" boat, we mean a boat that lives on a trailer. No paint manufacturer recommends using a hard paint on a boat that lives out of the water.
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Old 05-02-2013
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Re: bottom paint

VC17 is a great solution for lakes... but you cannot put it over ablative (relatively soft) paint.

If your gelcoat is damaged, then that'll need to be repaired as well.

This job is DOABLE yourself on a 22... but is a real pain in the hump. IF you have a place at home to put it, and a trailer that allows you to move bunks around... you can scrape all the garbage off... patch the bottom up, then sand the bottom into the gelcoat... then barrier coat it... then put a hard bottom paint (like VC17m)... for freshwater. Yeah I know you don't race... but the VC17 is a good choice for freshwater either way.

I did exactly this work, and it took a very long time and you HAVE to use a decent respirator, and it makes quite a mess.
from this

to this

to this

Barrier

VC17m

oh and I painted the topsides too (that REALLY stunk too).
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