What bottom paint for PNW...

Dec 7, 2018
256
C&C 27 Mk V Vancouver
...that the divers can clean w/o poisoning themselves or causing an environmental incident.
They (the dive co.) tell me the new CSC.ca I used last is softer than the old formula so I'm thinking hard paint but what is there besides VC Offshore which seems kinda' fussy.
 
Jun 17, 2022
534
Hunter 380 Comox BC
I can get 2.5 to 3 years out of micron csc. However, I sail at least once a month, clean the bottom twice a year (slime). The last 6 months I can tell it's starting to loose its efficacy.

If the boat stays stationary a lot or doesn't get the bottom cleaned, bottomkote (softer0 may be a better choice, but it does 2 years max and you cant rub/clean the hull.without removing paint. We have very limited choices in canada.

I've been super impressed with prop one for the prop. I see a lot of boaters spray zinc, which does bubkis for growth.
 
May 7, 2012
1,616
Hunter e33 Maple Bay, BC
I have used Micron CSC (now CSC CA) since the boat was new in 2012 and get anywhere from 2 - 4 years until it requires reapplication. However, the lengthy "immersion" time specification for the Canadian CSC (CSC-CA) makes it difficult to apply in our climate in any other period than between May and Sep.
Micron CSC CA Spec Sheet
 
Dec 7, 2018
256
C&C 27 Mk V Vancouver
I'm having the bottom done frequently because there's not much tidal flushing where I am here in the creek so the growth of lots of hull velcro which is slow.
4-6 times per season. Absolutely before local marquee events.
I need to figure out which is the hardest of the ablatives anymore.
I could do something like Bottomcoat, burnish it before launch, clean regular and re-do every year.
But then I'd have to wet sand w/80 grit before application every year to keep old paint build up within tolerable limits.
Starting from the gel coat next haul.
 
Jan 4, 2006
7,639
Hunter 310 West Vancouver, B.C.
Starting from the gel coat next haul.
Good idea starting with a clean slate.

I'm having the bottom done frequently because there's not much tidal flushing where I am here in the creek so the growth of lots of hull velcro which is slow.
4-6 times per season.
Can't believe the amount of labour that you put into your boat. Also like the term "hull velcro." The perfect ekphrasis.

For a bit of history on bottom coats for the PNW, check the archives. You'll find notes by @Terry Cox (eight years running) and myself (six years running) and without cleaning in between. Now is the perfect time to start.

A big ALSO here, would it be out of the question to change moorage to Thunderbird Marina in West Van ? Good tidal flow and I'm sitting at six years right now with nothing more than the annual half haul for a pressure wash, quick look around and throw a few zincs at it.

It would likely be cheaper than the six in situ cleanings every year. Speaking of divers engaged in cleaning, I've never seen one in the marina other than to haul up the ubiquitous fixer upper every so often.

Definitely a cure if the distance isn't too far from home. And you like driving over the bridge :cuss:.
 
Dec 7, 2018
256
C&C 27 Mk V Vancouver
No c'mon! :yikes: :laugh:
I drove transit busses over those bridges for a decade. No way I'm subjecting myself to the tyranny of lousy Vancouver drivers in my retirement. lol....
I'm only going over 2nd Narrows (from Comm. Dr.) at the tail end of the morning rush to whip off a couple runs at Seymour or a lap on my mtn. bike and high tailing it back b4 madness ensues.
The only starts closer to Thunderbird are Popham Isl. and the unfortunately named " 'round" Bowen race.
Thursday nighters run 15 or 16 wks spring/summer like 10mins from Civic. Scramble, T-10, Anything Goes etc.
If I were an ardent cruiser then yeah, for sure T-Bird would be a perfect springboard.
Diver spends 11 min on my boat @ I think $7.50 per. If it's hard paint then he can get his nose in it it'll be maybe 20?

Thanks for links.
 
Apr 5, 2009
3,301
Catalina '88 C30 tr/bs Oak Harbor, WA
I berth my boat in Oak Harbor Marina on Whidbey Island and use Petitt Trinidad. I put in on in 2005 when I brought my boat from Coeur d' Alene. I repainted it in 2014 and again in 2023. I get 9 years with no muscles growing on the fiberglass hull and just a few in rough spots on the lead keel.

I dive the boat spring and fall to replace zincs and clean the running gear. The hull just has a thin layer of slime that wipes off easily.
 
Jun 17, 2022
534
Hunter 380 Comox BC
I'd love to try that one .... unfortunately, not legal to import or apply in Canada....
 
Dec 7, 2018
256
C&C 27 Mk V Vancouver
I berth my boat in Oak Harbor Marina on Whidbey Island and use Petitt Trinidad.
How much coverage do you get from a gallon on your 30'er ?
 
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Dec 7, 2018
256
C&C 27 Mk V Vancouver
Jan 4, 2006
7,639
Hunter 310 West Vancouver, B.C.
No way I'm subjecting myself to the tyranny of lousy Vancouver drivers in my retirement.

I guess there's no pleasant memories there to rekindle. Best let sleeping dogs lie.

All that aside, I would still very strongly recommend :

1782621917900.jpeg


It's still maintaining about 1/2 the price of Micron, is harder than Micron, and all you have to do is wait for that tracer coat to show through which will be long after the Micron is gone and forgotten.

Also be sure you don't rush the procedure :
  • make sure the old bottom coat is bone dry from at least one full day in the hot sun. Doesn't apply to you now.
  • use a minimum of two coats
  • give the final coat a full day to dry.
I've never seen a single barnacle on the hull and given a full day of movement, that seems to remove much of the slime.

1782622755594.png
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,531
CAL 35 Cruiser #21 moored EVERETT WA
I too use Trinidad. Hard surface. Easy clean say my diver. I have been getting 5-6 years between paint jobs.

Pettit makes an Odyssey line for Canada. The Odyssey 60 (or Odyssey HD) are practical, high-performing choices.
 
Jan 4, 2006
7,639
Hunter 310 West Vancouver, B.C.
I have been getting 5-6 years between paint jobs.
I find it surprising how many people keep coming forward to say that they are getting 4, 5, and six years from bottom paints while the purists keep whining "The label says to repaint every one to two years :doh: ."

Barnum knew what he was talking about.
 
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Likes: Rick D
Apr 5, 2009
3,301
Catalina '88 C30 tr/bs Oak Harbor, WA
How much coverage do you get from a gallon on your 30'er ?
My C30 takes a bit more than 1.5 gallons. I save the leftover paint and use it first on the next time painting. It lasts almost indefinitely in the can as long as you store the can upside-down so that no air can get in.
 
Dec 7, 2018
256
C&C 27 Mk V Vancouver
My C30 takes a bit more than 1.5 gallons. I save the leftover paint and use it first on the next time painting. It lasts almost indefinitely in the can as long as you store the can upside-down so that no air can get in.
Sorry, that's for 1 coat or two?
 
Dec 7, 2018
256
C&C 27 Mk V Vancouver
Ralph, that picture makes me want to grab my sanding blocks!

Buddy's going the B-ham next wk - he could get me some Trinidad.
But..... don't think I can apply it over Primocon, which is all over the keel and I'm not keen on taking that down to whatevers covering the lead + the fairing Clint did to the leading edge.
:huh:
 
Dec 7, 2018
256
C&C 27 Mk V Vancouver
I was looking into the Odyssey paint mentioned above and noticed it was cheaper in Cda. so I asked my phone what the difference was and of course there's less copper in the Cdn. produvct but more VOC's are allowed. Go figure.
That AI generated info was tagged with these forums and bringing that up led to my post here 2yrs ago inquiring into Petit Horizons. Too funny.
To be clear I'd forgotten I'd used the Horizon and not the CSC.
Reviews of the Horizon lauded it as a "budget" product. Its performance certainly was "budget".
So the Odyssesy has 44% co but the US version has only 1.7% more I wonder what the Cdn. govt.'s agency regulating anti-foul paints thinkng was here.

Bottomkote has 42.7.co while the Ultrakote has a whopping 76%!
 
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