[C320-list] Bottom Job

[Warren Updike]

I second Johnm's point. After we bought # 63 in 2004, we removed most of the
old paint and had the yard do the waterline (there the paint is super hard,)
and sand the whole bottom. Then, I applied a "signal" coat of black and a
top coat of blue ablative paint. I use the WM CPP about $90 on sale in the
spring.  
After that, I painted the whole bottom for a couple of years.  Then, it
occurred to me that I wasn't ever seeing the signal coat, so why repaint the
whole thing.  Now, I just repaint where it appears to be getting thin, the
usual areas are the bow fwd of the keel, leading edges of the keel and
rudder.  
Each year when hauled and power washed, there are a number of places where
the paint just flakes off down to the barrier coat.  I simply chip away to a
hard edge, sand to feather edges, wash with 202, reapply the black signal
coat, and top coat with blue.  I also noticed that the previous year repairs
are holding firm.  Why continue to pile on more paint if the old is still
there.
As to the flaking areas, I contacted Catalina who told me that in '93-'94
they were using a two part barrier coat but couldn't be sure on any specific
boat.  The manufacturer sold that product line years ago.  So, this year, I
may use a Pettit primer coat on the barrier coat.
Otherwise, I keep telling myself that it's just a boat, we don't race, and
I'd rather be sailing than sanding.

Warren Updike

-----Original Message-----
From: JJ Morrison [mailto:sail-ability at sympatico.ca] 
Sent: Wednesday, February 16, 2011 10:29 AM
To: Catalina List
Subject: Re: [C320-list] Bottom Job


>From my point of view most of us put far too much anti fouling paint on the
boat bottoms! As long as there is at least one coat on the bottom the
biocide in the paint will work. I've seen folks who put a coat on every
spring which is just a waste and you wind up with an eighth(I've seen more)
of an inch of paint flaking off. 
In places where I can see through the paint to the boat bottom  I give a
very light sanding and paint ( I use  Micron CSC which is ablative and
designed to wear away) that patch, doesn't look so good on the hard but once
in the water...
This is for cruising boats, racers like to have that silk smooth bottom
which is another story.
Cheers
JohnM
#574
 

 
> From: kswanson123 at comcast.net
> Date: Tue, 15 Feb 2011 21:00:21 -0800
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Bottom Job
> 
> Bottom job is what you are doing every year. 
> 
> I wouldn't change a thing other than maybe apply really good bottom paint
and only haul the boat every other year or so.
> 
> 
> On Feb 15, 2011, at 7:33 PM, Tim wrote:
> 
> > Ok, I am sure some of you will have some fun with this so go for it but
what I 
> > need to understand is the following. I have heard the term "getting a
bottom 
> > job" done on my boat. But I am not certain what this means. Every
season, I have 
> > my boat hauled, power washed, sanded and painted. Now the sanding is not
to 
> > remove all paint just to even things out a bit. Last few seasons, I have
done a 
> > bit extra sanding on my own. There does appear to be a few coats of
paint built 
> > up on the bottom. Like the rest of us every little bit of extra speed is

> > wonderful. So.....is there something more I should do every few years,
should I 
> > strip the bottom and only have one coat of paint. What is common
practice here 
> > without depleting funds for rum and other necessities.
> > 
> > 
> > 
> 
> David Swanson
> kswanson123 at comcast.net
> 
> 
>