Rustoleum on keel -- Any Reason Why Not?? - Page 3 - SailNet Community
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post #21 of 53 Old 06-10-2009
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Not thread stealing, but on the same subject. I have a rusted keel on my Catalina 22 that I've been thinking on using a product called POR-15. Anyone ever use this stuff with good results?What is Por-15? - POR-15 Inc.
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post #22 of 53 Old 06-10-2009
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Por15

My sister used POR15 on her keel this spring after getting annoyed by the constant rust. She stripped all botton paint off the keel using an environmentally friendly stripper. Rinsed. Sanded or ground off rust and used the POR prep stuff, then POR15 (following directions closely). There was some fairing and bottom painting done. Saw it 3 weeks after completion and it still looked good....and it's a 25 year old boat. It took some time and totally didn't look like fun, but the end result was good.
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post #23 of 53 Old 06-10-2009 Thread Starter
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Thank you gentlemen! this really helps! (Beer is on me.)

I was planning on going back to exactly what Jimscal suggested when he visited me - to use the Interlux 2-part yellow stuff and Interlux 2000e. Now that I read the posts about Ospho, I'm thinking of adding that step.

Since I have a keel with Rust Reformer on it right now, here's my plan. I'm not sure if I have to wash off the Ospho after it's applied, so please feel free to *aggressively* comment on this procedure:

1) Wire brush off the Rust Reformer, leaving traces in deep pits is ok.

2) Apply Ospho
.....let dry
.....Wash off Ospho with water
.....Wire brush keel (since I just washed with water, to get the flash-rust off)

3) Apply the Interlux 2-part Yellow stuff

4) Apply 2-part Interlux 2000e
.....Several coats

5) Apply bottom paint

6) Go sailing

The timing looks like this:


1) Wire brush off the Rust Reformer, leaving traces in deep pits is ok [2 hours]

2) Apply Ospho [1 hour]
.....let dry (24 hours)
.....Wash off Ospho with water [30 minutes]
.....Wire brush keel (since I just washed with water, to get the flash-rust off) [1 hour]

3) Apply the Interlux 2-part Yellow stuff [Let dry for 1 hour]

4) Apply 2-part Interlux 2000e [30 minutes, plus 2 hour wait between coats]
.....Several coats (timing of last coat is important to help bottom paint stick)

5) Apply bottom paint

6) Go sailing

What do you think??

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post #24 of 53 Old 06-10-2009
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bent mast, por15 is a great product for old cars, i have used it some. i would be leary about putting it underwater thou, it has a very hard finish that might not let you "see" whats going on underneath. btw the convertor prep stuff in por15 is just phosphoric acid, and it ( the whole por15 system ) actually works better when there is rust on the part.
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post #25 of 53 Old 06-10-2009
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1) Wire brush off the Rust Reformer, leaving traces in deep pits is ok [2 hours]

2) Apply Ospho [1 hour] no need to let it dry, just spray it a few times.
rinse, let dry. use some 150 sand paper to get flash rust off, or quick and gentle wire brush. you dont want to remove to much the coating that will be created. doing the rinse on a hot dry day you might not get any rust


3) Apply the Interlux 2-part Yellow stuff [Let dry for 1 hour]

4) Apply 2-part Interlux 2000e [30 minutes, plus 2 hour wait between coats]
.....Several coats (timing of last coat is important to help bottom paint stick)

5) Apply bottom paint

6) Go sailing
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post #26 of 53 Old 06-10-2009
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Quote:
Originally Posted by scottyt View Post
1) Wire brush off the Rust Reformer, leaving traces in deep pits is ok [2 hours]

2) Apply Ospho [1 hour] no need to let it dry, just spray it a few times.
rinse, let dry. use some 150 sand paper to get flash rust off, or quick and gentle wire brush. you dont want to remove to much the coating that will be created. doing the rinse on a hot dry day you might not get any rust


3) Apply the Interlux 2-part Yellow stuff [Let dry for 1 hour]

4) Apply 2-part Interlux 2000e [30 minutes, plus 2 hour wait between coats]
.....Several coats (timing of last coat is important to help bottom paint stick)

5) Apply bottom paint

6) Go sailing
just to be sure..have you performed this exact process to a steel keel, and if so, how many seasons did the result work for you?

I followed steps 3-6 for a LEAD keel, and found the results to be OK over the next few years, but not as perfect as the results of 5 coats of straight epoxy applied to a STEEL keel.

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post #27 of 53 Old 06-10-2009
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Quote:
Originally Posted by sailingfool View Post
just to be sure..have you performed this exact process to a steel keel, and if so, how many seasons did the result work for you?

I followed steps 3-6 for a LEAD keel, and found the results to be OK over the next few years, but not as perfect as the results of 5 coats of straight epoxy applied to a STEEL keel.
i would agree that epoxy would be the best way to go, but i think he has the interprotect already. and no i have not used it on a steel keel, but its basicly what we used on submarines. we used a different final finish that was a very rubbery 2 part paint, and it held up for years as far as a i know. the paint did not even get a primer, we only used primers inside the boat
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post #28 of 53 Old 06-10-2009
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Let the Ospho dry, it'll turn black, then paint or epoxy right over it. You've already got all the loose and flaking rust off, and what the Ospho neutralizes you'll want to just leave as is, versus digging deeper. And I don't know if I'd even epoxy it. Paint it and get out sailing. It's not like you won't be looking at it again fairly soon...like September or October. Very few of those ships out there have epoxy on their hulls and they go two years in the water, minimum. The biggest difference between them and you right now is, they're in the water. 'git 'er done!

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post #29 of 53 Old 06-10-2009
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This is a great thread. Any thoughts on fresh water applications?
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post #30 of 53 Old 06-10-2009
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Quote:
Originally Posted by KB7EWA View Post
This is a great thread. Any thoughts on fresh water applications?
yeah, put it in the water and fix it next year! I know, you probably want to fix it now, but fresh water isn't going to do it much harm over a season, if it's just simple rust.

Just to be fair, what "fresh water applications" are you referring to? Of what? On what?

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