Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 18-08-2005, 16:59   #1
Registered User

Join Date: Apr 2003
Location: Winters - Out Cruising / Summers in the NC mountains
Boat: Brewer 42
Posts: 292
Images: 2
Enviro friendly bottom paint???

We will be painting our bottom in the next few months and I'm wondering if there are any enviromentally friendly bottom paint on the market that a) do a good job b) allow you to haul-out for4 months annually c) are not cost prohibitive.

Thanks
Roger
__________________

__________________
rleslie is offline   Reply With Quote
Old 18-08-2005, 19:12   #2
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,579
Images: 240
Not (yet) to my knowledge..
Antifouling coatings are designed specifically to control marine growth and maintain ship hulls in a smooth and hydro-dynamically efficient condition. Recent international regulations have removed the most effective antifouling coating (Tributyl-Tin compounds - TBT) from the market . At present, there are no clear alternatives (to these Organotin-based compounds) that provide similar performance.

Currently Registered Antifouling Products:
http://www.pmra-arla.gc.ca/english/p...ntifouling.pdf

International Convention on the Control of Harmful Anti-fouling Systems on Ships
http://www.imo.org/Environment/mainf...p?topic_id=223

Now, let's hear from everyone who has discovered exactlly this safe-effective alternative.
__________________

__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 18-08-2005, 20:32   #3
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
I too would love to hear from those that have tried new "safe" methods of protection. I have heard so many "old wives tales" of home brew's etc, but have never seen a follow up yet of whether the brew worked or not.
However, one positive, NZ outlawed tin TBT antifoulings about ruffly 15years(Give or take a few years) ago now. When TBT was in use, our loacl Marina's were baron of sea life and the water had a strange hazy dead look to it. Today, the Marina's are now teaming with life. Small fish, Ray's and Shellfish and interestingly, the waters tend to be clear and healthy looking. I put that last part down to the filtration that Shellfish carry out on the water.
The copper systems don't seem to have the same visual impact on the marine life, but I don't Know about what long term effects it may still have on the marine life. At the end of the day, copper is still a metal and it is it's consontration that causes it to work.
__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 19-08-2005, 04:18   #4
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
In the ole' days I've seen people (while in the slip) pull tarps under the boat and fill it with fresh water for long storage.

It seemed to work, just a little alge built up which came right off when they got underway..................................._/)
__________________
delmarrey is offline   Reply With Quote
Old 19-08-2005, 04:45   #5
Kai Nui
Guest

Posts: n/a
Ahh the age old question.. Which do you want? Cheap? Fast? Or good?Good and cheap will not be fast. Cheap and fast will not be good. Good and Fast, well.... That ain't gonna be cheap!
I have heard that some of the new teflon based bottom coats designed for racing boats leach a bit less than traditional copper, but I do not know how well they work at preventing growth.
__________________
  Reply With Quote
Old 19-08-2005, 13:03   #6
Senior Cruiser
 
Talbot's Avatar

Cruisers Forum Supporter

Join Date: Jun 2004
Location: Brighton, UK
Boat: Privilege 37
Posts: 3,579
Images: 32
I assisted a trial on a large mobo , where we cleaned the bottom of all paint and attached self adhesive copper strips. This replicated the old fashioned copper plates used on wooden warships. Unfortunately the company making these had not done their homework, and the copper was too thin, and the adhesive insufficiently strong so that after a couple of thousand miles quite a lot of the copper sheets had dis-appeared. We suspect that contact with debris in the water penetrated the copper, and then water pressure lifted the tile off. So we had to lift the boat again and remove the tiles and put conventional A/F back on. We salted some of this with additional pure copper powder in order to investigate whether this would help.

I have also read good reports on the addition of chile powder to the a/f.

Really depends how much fouling you get. My boat iis in an area of reknown very high fouling so I have to use the best I can get hold off and still expect fouling to have started after 3-4 months!
__________________
"Be wary of strong drink. It can make you shoot at tax collectors - and miss."
Robert A Heinlein
Talbot is offline   Reply With Quote
Old 19-08-2005, 21:06   #7
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
It's those stories of additions of things like copper powders and chilly powders and pepper and whatever that I have heard much about, but have still yet to hear a report of the other end of the story, as in, Did the stuff really work and did it last and for how long and yadda yadda.
__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 22-08-2005, 04:49   #8
Kai Nui
Guest

Posts: n/a
I have heard the chili powder thing too. I have considered the copper cladding, but sometimes the benefits just don't justify the effort. I try to be as environmentaly sound as possible, but as for bottom paint, I get the nastiest, highest copper content stuff I can find.
__________________

__________________
  Reply With Quote
Reply

Tags
bottom paint

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
What Is the Best Anti-Fouling Bottom Paint irwinsailor Construction, Maintenance & Refit 204 04-04-2017 06:00
Paint kingfish Construction, Maintenance & Refit 7 25-08-2004 15:41



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:27.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.