Catalina - Capri - 25s International Assocaition Logo(2006)  
Assn Members Area · Join
h.jpg Home.
a.jpg Association Forum
s.jpg Ships Store
c.jpg Cruising
r.jpg Racing
t.jpg Technical Tips
g.jpg Photo Gallery - New
o.jpg Boat Search - Updated
m.jpg Manuals & Brochures
3rdrpt.jpg Swap Meet
l.jpg Links
f.jpg Officer Flag Line & Staff
b.jpg Bylaws & Constitution
 
1.jpg Members Area
1.jpg Join the Association
 
Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
 
Association Forum
Association Forum
Home | Profile | Register | Active Topics | Forum Users | Search | FAQ
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Iron Swing Keel - Finishing and Zinc?		  New Topic  Topic Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

odonnellryanc
Navigator

Member Avatar

108 Posts
Initially Posted - 04/06/2018 :  09:47:31  Show Profile
Hey guys,

Starting to feel like if we do everything we want with this boat this year we'll never go sailing :)

Currently, the keel is mostly scraped down to metal, but still attached to the boat. There's really not much pitting on this old hunk of iron, surprisingly..

Paint we were able to get off was just an hour or so with a scraper - big stuff. I can't imagine it was doing much to keep the water off the iron.

To finish correctly with any kind of paint I'd want to bring it down to "shiny" iron and then begin the finish from there. But, what's a good stop-gap if we don't get around to this this year?

Just throw a quick coat of primer + ablative until we're ready to refinish correctly?

Also, do the zincs do anything on these iron keels? Maintenance guys at my marina say they're pointless... but we do have a zinc on the keel now.

islander
Master Marine Consultant

Members Avatar

USA
3992 Posts
Response Posted - 04/06/2018 :  10:19:27  Show Profile
Well zinc's don't stop rust if that's what your looking to do.
Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound


Go to Top of Page

sethp001
Mainsheet C-25 Tech Editor

Members Avatar

814 Posts
Response Posted - 04/06/2018 :  12:53:20  Show Profile
Believe it or not, Rust-o-leum works great. They have a primer version. You can apply bottom pain over it.


Seth
"Outlier" 1987 Catalina 25 SR/SK/Traditional Interior #5541
"Zoo" 1977 Morgan Out Island 30
"Nomad" 1980 Prindle 16
"Lost" 1988 Catalina Capri 14.2 (sold - yay!)
"Marine Tex 1" Unknown Origin POS 8' Fiberglass Dinghy
https://whichsailboat.com/2014/07/27/catalina-25-review/
Go to Top of Page

odonnellryanc
Navigator

Members Avatar

108 Posts
Response Posted - 04/06/2018 :  16:19:27  Show Profile
Might be a good chance to test that out, Seth! Won't be able to do a proper job... but I could afford a few coats. See how it holds up.
Go to Top of Page

Dave5041
Former Mainsheet Editor

Members Avatar

USA
3754 Posts
Response Posted - 04/07/2018 :  12:02:45  Show Profile
I used Rustoleum rust binding or preventing primer on the iron swing keel of my last boat before finishing with a Rustoleum top coat with excellent results in freshwater. It contains zinc phosphate, AKA cold galvanizing, and I highly recommend it. I also use zincs because of the mix of iron, stainless, and bronze in the keel assembly. Fresh, brackish, or mixed water "zincs" are actually aluminum or magnesium alloys since they need to be more reactive than zinc.

edit:
sand the keel bare under the zincs and seal the outer edge

Dave B. aboard Pearl
1982 TR/SK/Trad. #3399
Lake Erie/Florida Panhandle
Edited by - Dave5041 on 04/07/2018 12:06:35
Go to Top of Page

sethp001
Mainsheet C-25 Tech Editor

Members Avatar

814 Posts
Response Posted - 04/09/2018 :  15:22:06  Show Profile
quote:
Originally posted by Dave5041


edit:
sand the keel bare under the zincs and seal the outer edge


For good electrical contact


Seth
"Outlier" 1987 Catalina 25 SR/SK/Traditional Interior #5541
"Zoo" 1977 Morgan Out Island 30
"Nomad" 1980 Prindle 16
"Lost" 1988 Catalina Capri 14.2 (sold - yay!)
"Marine Tex 1" Unknown Origin POS 8' Fiberglass Dinghy
https://whichsailboat.com/2014/07/27/catalina-25-review/
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Topic Locked
 Printer Friendly
Jump To:
Association Forum © since 1999 Catalina Capri 25s International Association Go To Top Of Page
Powered By: Snitz Forums 2000 Version 3.4.06
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.