Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-17-2019, 08:01 AM   #1
Guru
 
cardude01's Avatar
 
City: Victoria TX
Vessel Name: Bijou
Vessel Model: 2008 Island Packet PY/SP
Join Date: Nov 2012
Posts: 5,290
Bottom paint question

Was on the boat last week and anchored out in a nice spot with some super clear water. Decided to use the snuba to check out the bottom paint.

There were some very small barnacles at the waterline and some larger (pencil diameter maybe) that I knocked off with my wooden spoon looking tool. Not much slime or green moss stuff growing. The paint looked pretty good but when I knocked off the bigger barnacles the black bottom paint came off with them.

Since larger barnacles are growing does that mean my paint is getting depleted, or just that I need more frequent bottom cleaning? It’s been on there 2.5 years and is Petit Trinidad SR.

Also, since the boat is in the Bahamas I’ve heard I can get higher copper content paint there? Was thinking of letting the local place here do a bottom job maybe but have not checked the cost yet. Has anyone here used Abaco Yacht Services on Green Turtle Cay for bottom paint or other work?
cardude01 is offline   Reply With Quote
Old 08-17-2019, 08:10 AM   #2
Valued Technical Contributor
 
DavidM's Avatar
 
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,775
Well, I am not sure that higher copper content will really improve things. Bottom paint with lower copper content to meet US standards is formulated with other biocides that probably does as good a job. And you do want to protect the environment by using minimal copper, don't you?


2-1/2 years is pretty good for any bottom paint. If it is getting intolerable, then a quick haul, sanding and painting at the waterline and two feet below can probably pick up another year of service.


David
DavidM is offline   Reply With Quote
Old 08-17-2019, 08:34 AM   #3
Guru
 
cardude01's Avatar
 
City: Victoria TX
Vessel Name: Bijou
Vessel Model: 2008 Island Packet PY/SP
Join Date: Nov 2012
Posts: 5,290
Oh yes. Whoops. Forgot about the environmental concerns.

Is that normal for some paint to pop off with a barnacle? I have not a been a frequent diver on the bottom because the water is usually too gross/murky for me when not in the Bahamas, so I don’t know what a diver normally encounters.
cardude01 is offline   Reply With Quote
Old 08-17-2019, 09:39 AM   #4
Valued Technical Contributor
 
DavidM's Avatar
 
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,775
Yes, bottom paint doesn't stick well to the underlying gel coat or barrier coat so it will often pull the paint off when you scrape barnacles off. Obviously it is better to get them off when they are small and maybe not stuck so well. I would usually scrape from the water line down a foot or so every other month to get all of the little critters off.

A windshield ice scraper works great for this. Doubt that you can find one in the Bahamas though .

David
DavidM is offline   Reply With Quote
Old 08-17-2019, 11:50 AM   #5
Guru
 
Maerin's Avatar
 
City: East Coast
Vessel Name: M/V Maerin (Sold)
Vessel Model: Solo 4303
Join Date: Jun 2013
Posts: 886
At 2-1/2 yrs, I don't think that bottom paint owes you anything. I've left paint on that long in the past, what you're describing is consistent with the length of time the paint's been on, IMO.
__________________
Steve Sipe

https://maerin.net
Maerin is offline   Reply With Quote
Old 08-17-2019, 12:24 PM   #6
Guru
 
fstbttms's Avatar
 
City: Under a boat, in a marina in the San Francisco Bay
Join Date: Mar 2012
Posts: 615
Quote:
Originally Posted by cardude01 View Post
Oh yes. Whoops. Forgot about the environmental concerns.
What "environmental concerns"? The copper-based anti fouling paint availiable in the U.S. is no different than the copper-based anti fouling paints you buy anywhere else in the world.

Quote:
Originally Posted by cardude01 View Post
Is that normal for some paint to pop off with a barnacle?
Having removed many, MANY barnacles from boat bottoms over the last 25 years as a professional hull cleaner, I can tell you that when you scrape a barnacle off of a painted surface, what is left is a very thin calcareous disc that is almost impossible to remove. Were you to actually be able to scrape that disc off or if the paint were already disbonded then yes, paint might come off with it. But typically no paint is removed when scraping barnacles.
__________________
Clean bottoms are FastBottoms!
fstbttms is offline   Reply With Quote
Old 08-17-2019, 07:52 PM   #7
Senior Member
 
lipets's Avatar
 
City: FL
Vessel Model: Benneteau Swift 42
Join Date: Jun 2019
Posts: 469
2.5 years U got your $$$ worth.


Time to paint
lipets is offline   Reply With Quote
Old 08-17-2019, 08:12 PM   #8
Guru
 
cardude01's Avatar
 
City: Victoria TX
Vessel Name: Bijou
Vessel Model: 2008 Island Packet PY/SP
Join Date: Nov 2012
Posts: 5,290
Bottom paint question

Quote:
Originally Posted by fstbttms View Post


Having removed many, MANY barnacles from boat bottoms over the last 25 years as a professional hull cleaner, I can tell you that when you scrape a barnacle off of a painted surface, what is left is a very thin calcareous disc that is almost impossible to remove. Were you to actually be able to scrape that disc off or if the paint were already disbonded then yes, paint might come off with it. But typically no paint is removed when scraping barnacles.

Very interesting. After scraping the barnacles off I did not feel the paint to see if in fact paint came off. I just assumed the white spot under the barnacle was missing paint. Thanks.
cardude01 is offline   Reply With Quote
Old 08-17-2019, 08:21 PM   #9
Guru
 
Bigsfish's Avatar
 
City: Miami River
Vessel Name: Gotcha
Vessel Model: Grand Banks. Heritage. 54
Join Date: Aug 2016
Posts: 2,988
I’ve used Trinidad for years, IMO it’s the best in south Florida if I get 1.5 to 2.0 years I’m very happy, sometimes I repaint every year.
Bigsfish is offline   Reply With Quote
Old 08-17-2019, 08:27 PM   #10
Guru
 
BandB's Avatar
 
City: Fort Lauderdale. Florida, USA
Join Date: Jan 2014
Posts: 21,449
As said by others you got excellent life. We have gotten 3 years but we got it by frequent bottom cleaning and never any scraping.
BandB is offline   Reply With Quote
Old 08-17-2019, 08:52 PM   #11
Moderator Emeritus
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,131
When we bought our current boat it had been painted in 2014 with a 2 year bottom paint per the boatyard where it was stored. Every year I assume it will need painting but so far it still looks good. I want to paint it because it is now blue and I want to go to black but I cannot justify painting it just to change the color. However we don’t have barnacles here.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 08-17-2019, 08:56 PM   #12
Guru
 
Bigsfish's Avatar
 
City: Miami River
Vessel Name: Gotcha
Vessel Model: Grand Banks. Heritage. 54
Join Date: Aug 2016
Posts: 2,988
Dave. Do you know the name of the paint? Five years is fantastic.
Bigsfish is offline   Reply With Quote
Old 08-17-2019, 08:58 PM   #13
Moderator Emeritus
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,131
You know I hesitated before making that post because I knew that someone would ask that question. No I don’t know the brand. I will try to find the work order and see if it is listed. I have the work orders for the prior 15 years from the PO.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 08-17-2019, 09:03 PM   #14
Guru
 
BandB's Avatar
 
City: Fort Lauderdale. Florida, USA
Join Date: Jan 2014
Posts: 21,449
Quote:
Originally Posted by Bigsfish View Post
Dave. Do you know the name of the paint? Five years is fantastic.
Don't overlook Dave's location.
BandB is offline   Reply With Quote
Old 08-17-2019, 09:25 PM   #15
Guru
 
Bigsfish's Avatar
 
City: Miami River
Vessel Name: Gotcha
Vessel Model: Grand Banks. Heritage. 54
Join Date: Aug 2016
Posts: 2,988
Location is very important , yes.
Bigsfish is offline   Reply With Quote
Old 08-17-2019, 09:26 PM   #16
Moderator Emeritus
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,131
Ok, found the old work orders. They put on Blue Water Copper Pro SCX paint. I had never heard of this brand but so far it is working great.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 08-17-2019, 09:28 PM   #17
Moderator Emeritus
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,131
I googled it and found it at The Bottom Paint Store for $165 per gallon with free shipping. That is an awesome price for a paint that has lasted for 5 years so far. No affiliation just a happy owner that inherited the paint job.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 08-17-2019, 09:30 PM   #18
Moderator Emeritus
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,131
Quote:
Originally Posted by BandB View Post
Don't overlook Dave's location.
Yes, but it was in the Chesapeake for the first 2 years. I am not an expert on the Chesapeake so I don’t know how bad the fouling was there.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 08-17-2019, 09:37 PM   #19
Guru
 
dhays's Avatar
 
City: Gig Harbor
Vessel Name: Kinship
Vessel Model: North Pacific 43
Join Date: May 2015
Posts: 9,046
Quote:
Originally Posted by BandB View Post
Don't overlook Dave's location.

Exactly. Up here with 53 degree average water temps, paint seems to last forever with quarterly cleaning by a diver.
__________________
Regards,

Dave
SPOT page
dhays is offline   Reply With Quote
Old 08-17-2019, 09:45 PM   #20
Guru
 
IRENE's Avatar
 
City: Sea of Cortez, Mexico
Vessel Name: Irene
Vessel Model: Nordhavn 40II
Join Date: Jan 2016
Posts: 1,234
Dave,

Ahoy. Any advice for bottom paint?

I am headed to Seaview West tomorrow for a Monday haul out. I have no idea what is on the boat now, but it was applied in summer 2017.

Thanks!

Jeff
__________________
Jeff
MV IRENE
IRENE is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 04:38 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012