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pcg
Joined: 31 Aug 2018 Posts: 411 City/Region: Sherwood
State or Province: OR
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: C-Quest
Photos: pcg
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Posted: Thu Mar 21, 2019 7:21 pm Post subject: |
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And what is the best alternative paint should one decide to not use bottom paint? _________________ Paul |
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ssobol
Joined: 27 Oct 2012 Posts: 3386 City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
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Posted: Thu Mar 21, 2019 10:06 pm Post subject: |
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C-Sharp wrote: | ... Of course the 6 months in the water will make bottom paint a necessity. But what are the downsides of bottom paint? |
The cost of applying and maintaining it. It needs to be reapplied every couple of years. Some bottom paints work well in one set of conditions but not in another (like if you move your boat from the PNW to So. FL.).
Some bottom paints don't like to be out of the water for long periods
Bottom paints containing copper are banned in some places.
If you are going to have your boat in the water for long periods then bottom paint is probably in order. However, the OP was going to do a one time thing (as I read it). For that, I would not think the cost and effort for bottom paint is worth it. The $2K (at least) you'd pay to get it painted will pay for a lot of diver time to clean the bottom.
If it were my boat, I wouldn't paint it. |
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NewMoon
Joined: 21 Dec 2008 Posts: 430 City/Region: Holladay
State or Province: UT
C-Dory Year: 1991
C-Dory Model: 22 Cruiser
Vessel Name: Cindy Sea
Photos: Cindy Sea
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Posted: Fri Mar 22, 2019 12:15 pm Post subject: |
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FWIW,
I applied water-based Pettit Hydrocoat to New Moon myself in 2006, after getting very tired of major accumulations in 2-3-month Inside Passage trips. Noticeable slowing underway, and multi-day cleanup after each cruise.
New Moon spent ~ 9 months each year on its trailer, and ~ 3 months cruising, mostly at hull speed. Hydrocoat was still working pretty well several years later (maybe 6??), at which time I put additional coats on the sides, chines and transom. It was still working, although not quite as well, on our last cruise in 2015. _________________ Richard Cook
Dream Catcher (Nordic Tug 37, 2016 to present)
New Moon (Bounty 257, 1998 to 2016)
Cindy Sea (CD 22 Cruiser, from 1991 to 1998)
"Cruising in a Big Way" |
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colbysmith
Joined: 02 Oct 2011 Posts: 4571 City/Region: Madison
State or Province: WI
C-Dory Year: 2009
C-Dory Model: 25 Cruiser
Vessel Name: C-Traveler
Photos: C-Traveler and Midnight-Flyer
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Posted: Fri Mar 22, 2019 9:08 pm Post subject: |
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Richard, how hard was it to put on and how did you lift your boat to keep it off the trailer while painting the hull? Also, once you put this on, do you have to reapply it from then on? While I am looking at cruising the inside passage for 2 to 4 months this summer, I don't see any future trips of this length on the water at one time, particularly salt water. So I'm somewhat concerned about future maintenance after having bottom paint. Thanks. Colby |
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NewMoon
Joined: 21 Dec 2008 Posts: 430 City/Region: Holladay
State or Province: UT
C-Dory Year: 1991
C-Dory Model: 22 Cruiser
Vessel Name: Cindy Sea
Photos: Cindy Sea
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Posted: Sun Mar 24, 2019 7:49 pm Post subject: |
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Hi Colby,
Here's a post about it I made three years ago:
Ten years ago this spring, I decided to bottom paint my 8-year-old boat. After some research, I chose Pettit Hydrocoat. Power-washed and scrubbed thoroughly, used a solvent to make sure no wax remained, and applied a sandless primer (2 coats), then the Hydrocoat (2 coats, or 3 where the greatest wear was expected). Following directions as to timing between coats is critical. Took a few days of work, and a bunch of crawling around under the boat, but was not too tough. Water-based Hydrocoat sure was less nasty to work with than some other paints.
We've spent the summer on the water in SE Alaska every year since. The original Hydrocoat is still protecting most of the bottom. Essentially zero barnacles, year after year, except for the parts of the hull covered by the trailer bunks, which I could not paint. (wish I could say the same for the sterndrive)
2-3 years ago I put additional coats on the sides/chines and transom. I've been scrubbing these areas, where more light reaches the surface and promotes growth of the green stuff, maybe 3 times each summer, with a stiff brush on the end of a long boathook handle. When I haul out at the end of the summer, a thorough power-washing is all it takes to clean the hull well. Sterndrive is another matter, however @$%&!!!
Hydrocoat is great stuff!
I did the job using a 4" wide brush, mostly lying on my back under the boat in a full set of coveralls. Time consuming, but not tough. Took less than a gallon of Hydrocoat for my 26-footer.
For me the effort was worth it - saved me days of cleanup time each year. May not be for you if you're never doing any more salt water trips longer than a couple of weeks. If after this trip you don't really need bottom paint, you don't need to do anything with it - it will gradually wear away.
As far as painting where the trailer bunks meet the hull, I did not. New Moon's awful heavy to jack up above the trailer, so I decided not to risk it. Whatever barnacles did attach to those places got thoroughly squashed when I hauled the boat back out after each trip.
BTW, I plan to head north from Poulsbo about May 1 - may see you out there. |
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colbysmith
Joined: 02 Oct 2011 Posts: 4571 City/Region: Madison
State or Province: WI
C-Dory Year: 2009
C-Dory Model: 25 Cruiser
Vessel Name: C-Traveler
Photos: C-Traveler and Midnight-Flyer
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Posted: Sun Mar 24, 2019 8:12 pm Post subject: |
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I've got 4 bunks under my boat, so if I bottom paint, it'd probably make sense to get it off the trailer. What did you use for a primer? And how long is the boat out of service to wait for drying time? I suppose with 4 bunks, I could drop the middle two, do the paint job, then replace them, and drop the outer two to finish painting in that area. (I installed the two inner bunks some time ago to provide better support for my boat with all my longer trips.) Also, to get more room under the boat, I've got two sets of ramps (4 total) that would give me another foot of clearance.
If all goes well, I'll probably be launching the end of May at Prince Rupert. The couple I'm planning to travel with have to be in Petersburg the middle of July. I do have an AIS transmitter, so if you see Midnight Flyer, that'll be me. Colby |
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NewMoon
Joined: 21 Dec 2008 Posts: 430 City/Region: Holladay
State or Province: UT
C-Dory Year: 1991
C-Dory Model: 22 Cruiser
Vessel Name: Cindy Sea
Photos: Cindy Sea
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Posted: Sun Mar 24, 2019 8:36 pm Post subject: |
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Hi Colby,
I followed the mfr Pettit's recommendations exactly - which is what I'd suggest for any bottom paint. Don't remember the timing between coats, but it was pretty specific in their directions. Between the two coats of primer was something like two hours, or maybe four - you need to do it just as they instruct.
Careful cleaning, followed by the Interlux 202 wax solvent, then two coats of Pettit 6999 Sandless Primer - no need to sand or scuff.
EDIT: just looked at Pettit's web site, and it appears 6999 sandless primer is no longer available. Seems to have been replaced with 6998 skip-sand primer. |
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colbysmith
Joined: 02 Oct 2011 Posts: 4571 City/Region: Madison
State or Province: WI
C-Dory Year: 2009
C-Dory Model: 25 Cruiser
Vessel Name: C-Traveler
Photos: C-Traveler and Midnight-Flyer
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Posted: Sun Mar 24, 2019 9:15 pm Post subject: |
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Thanks Richard. I am starting to lean towards the Hydrocoat and doing it myself, but mind isn't made up 100% yet. Our weather is starting to warm up, but only 50's during the day, while still down to near, at or below freezing at night. Colby |
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NewMoon
Joined: 21 Dec 2008 Posts: 430 City/Region: Holladay
State or Province: UT
C-Dory Year: 1991
C-Dory Model: 22 Cruiser
Vessel Name: Cindy Sea
Photos: Cindy Sea
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Posted: Sun Mar 24, 2019 9:22 pm Post subject: |
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I'm on my way back from working on Dream Catcher for a couple of weeks. It was well up in the 70's in Poulsbo three days in a row. I was feeling spoiled. Peanut (our Border Terrier) was not yet acclimated to that much warmth - had to stop a few times and lie in cool shaded grass when we were walking. |
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colbysmith
Joined: 02 Oct 2011 Posts: 4571 City/Region: Madison
State or Province: WI
C-Dory Year: 2009
C-Dory Model: 25 Cruiser
Vessel Name: C-Traveler
Photos: C-Traveler and Midnight-Flyer
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Posted: Mon Mar 25, 2019 9:48 pm Post subject: |
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Would still like to hear from others regarding bottom paint. Specifically those that trailer their boats, and have had their boats on the water between 2-4 months. And if location is important, the Inside Passage area north of Prince Rupert. If I do it, the Hydrocoat seems like the best way to go, and I think I would do it myself. For those that do get Barnacles and growth, is in anywhere on the hull below the water line, or just along the sides below the water line? Colby |
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hardee
Joined: 30 Oct 2006 Posts: 12633 City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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Posted: Mon Mar 25, 2019 10:07 pm Post subject: |
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Quote: | ".... For those that do get Barnacles and growth, is in anywhere on the hull below the water line, or just along the sides below the water line? Colby" |
Colby, Mine were scattered on both the sides below the WL and on the bottom with the highest density, on the stern sides and vertical transom.
Harvey
SleepyC
_________________ Though in our sleep we are not conscious of our activity or surroundings, we should not, in our wakefulness, be unconscious of our sleep. |
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