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 Swg Keel barrier coat ... Rustlok Steel Primer?		  New Topic  Topic Locked
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albert
Captain

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USA
262 Posts
Initially Posted - 08/24/2002 :  02:25:19  Show Profile  Visit albert's Homepage
I'm getting ready to haul out my Swing Keeler for regular maintenance.

Last haul out (1.5 years ago) I had the keel sanded (not removed) and went with the marina's suggestion for applying a rust inhibitor. This was then covered with several coats of ablative bottom paint.

Its worked out relatively well, but I've started getting some barnacle growth. Growth is caused by rust spots on the iron causing the bottom paint to flake off.

I don't have the time/resources to remove the entire keel, sand, epoxy, etc.

Any suggestions on a less involved/costly way of sealing the iron keel without removing it?

I was thinking of using 6980 Rustlok Steel Primer this time instead of the rust inhibitor. Two hour dry time between coats. I should be able to sand, seal with two coats, and apply some bottom paint in a couple of days. Rustlok Steel Primer http://www.westmarine.com/webapp/commerce/command/ProductDisplay?prmenbr=201&prrfnbr=106066&outlet=

Anyone else try 6980 Rustlok Steel Primer or other products that have worked well? Once the rust starts, it flakes any coating off. I'm hoping that the 6980 Rustlok Steel Primer will seal the keel and inhibit rust formation.



Albert Iturrey
al@comhertz.com
<i>Abacus'</i>: http://www.comhertz.com/abacus

Edited by - albert on 08/24/2002 02:40:12

Edited by - albert on 08/24/2002 02:47:29
Edited by - on

Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 08/24/2002 :  10:00:43  Show Profile
I suspect that no matter how much you sand, there'll still be some rusty pits that will be the source of future rust and flaking. It might be worth looking into a "rust reformer" for those spots--I've used one from Rustoleum on car rust (back in the days when cars rusted), and it seemed to stop the rust in its tracks. The Rustoleum version is a whitish fluid in a plastic bottle, and when applied to a rusty area, turns the metal and rust coal black, leaving a clear coating on top. You could then prime and paint on top of that. (They strongly recommend painting over it.)

Note: I haven't tried this on a keel--mine is glass-encased lead.

Dave Bristle - 1985 C-25 #5032 SR-FK-Dinette-Honda "Passage" in SW CT

Edited by - Dave Bristle on 08/24/2002 10:02:31
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albert
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USA
262 Posts
Response Posted - 08/24/2002 :  14:30:47  Show Profile  Visit albert's Homepage
Dave,

Thanks for the suggestion. I'll try Rust Lock Metal Prep first then apply the Rustlok Steel Primer.

Rust Lock Metal Prep: http://www.westmarine.com/webapp/commerce/command/ProductDisplay?prmenbr=201&prrfnbr=106076&store_num=&store_name=&subdept_num=&subdept_name=&class_num=&class_name=&outlet=

Albert Iturrey
al@comhertz.com
<i>Abacus'</i>: http://www.comhertz.com/abacus
Edited by - on
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 08/24/2002 :  18:06:04  Show Profile
Yup--sounds like the same kind of stuff. It should help.

Dave Bristle - 1985 C-25 #5032 SR-FK-Dinette-Honda "Passage" in SW CT
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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.