Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 16-09-2018, 21:14   #16
Registered User

Join Date: Sep 2014
Boat: Moody 376
Posts: 94
Re: Issues with Coppercoat on cast iron keel - need some advice

Thanks again for all the replies.

I guess the consensus is that there should be no rust and therefore they have done a poor job. Since we cannot get back to the yard I think the only course of action is to ask for a partial refund to cover the cost of getting this fixed elsewhere.

As for what to actually do. I will keep an eye on it and monitor if it gets worse or not. If it doesnít get worse, then it means it is isolated to those small areas and they can be repaired. If it does get worse it means that generally the whole keel will probably need to be redone?
__________________

benzy is offline   Reply With Quote
Old 16-09-2018, 21:31   #17
Registered User
 
Fore and Aft's Avatar

Join Date: Jan 2015
Location: Gympie
Boat: Volkscruiser
Posts: 307
Re: Issues with Coppercoat on cast iron keel - need some advice

It might not be the yards fault. I bet they did not have the equipment to test the coating on your cast keel? In the gas pipeline industry we have a process called Jeeping where we have an electrified brush or coil and run it over the metal pipe after it has been coated. When the defect is found it causes a short back to the control box and beeps. You would be surprised how often there is a pinhole that is not visible to the naked eye. I am sure you could do the same on your keel.
Cheers
__________________

Fore and Aft is offline   Reply With Quote
Old 17-09-2018, 00:46   #18
Registered User
 
Snowpetrel's Avatar

Join Date: Jul 2012
Location: Hobart
Boat: Alloy Peterson 40
Posts: 3,706
Re: Issues with Coppercoat on cast iron keel - need some advice

^^ thats a pretty neat bit of technology. Simple and effective. How big are the pinholes and how do you fix them?
__________________
My Ramblings
Snowpetrel is online now   Reply With Quote
Old 17-09-2018, 01:29   #19
Registered User
 
Fore and Aft's Avatar

Join Date: Jan 2015
Location: Gympie
Boat: Volkscruiser
Posts: 307
Re: Issues with Coppercoat on cast iron keel - need some advice

For pin hole size areas you usually feather out an area about 50mm diameter back to bare steel then apply the same coating. Protol paints supply their own repair cartridges and gun so itís real easy to do repairs, other paints you have to mix a small amount of paint. Some of the pinholes are so fine all you can see is an arc from the brush to the steel when you are jeeping.
Coating failure is is an issue and I would like to see how they did the keel? They mention the keel was blasted then filled. Unless they did a perfect flush fill then waited until the filler was tacky and rolled on the epoxy I think they might have missed the window on coating the blasted steel. I imagine they filled the keel, sanded the filler the next day and then did the coating.
Cheers
__________________

Fore and Aft is offline   Reply With Quote
Reply

Tags
keel

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Suitable metal for replacement keel bolt in cast iron keel? OrangeCrush Monohull Sailboats 43 20-04-2016 19:25
Resealing Keel Bolt Heads On Outside Of Cast Iron Keel dumbaaaa Construction, Maintenance & Refit 2 18-04-2016 04:59
Need advice: Very thick fairing over cast iron keel Adelie Construction, Maintenance & Refit 19 16-12-2015 19:42
Cast Iron Primer for Keel / Hull Joint brianontheroad Construction, Maintenance & Refit 5 21-06-2010 22:54
How to "seal" a cast iron keel? speedoo Construction, Maintenance & Refit 4 04-04-2007 19:11



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 01:35.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.