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  #1  
Old 03-07-2010
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Lead keel stripper

I'm planning to refair my lead keel this spring. I've been able to remove a substantial amount of the old paint by hand scraping but what's left is clinging pretty tenaciously. Some of the old paint is on the fairing compound and some is actually directly on the lead. Will strippers made for removing bottom paint work on the lead without causing an adverse reaction or causing the metal to pit, etc?
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Old 03-07-2010
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Grind to bright white metal with a wire wheel or course paper, coat it with Interlux primer wash 353, put on a few coats of Interptotect, fair with epoxy/microobaloons, two more coats of Interprotect, then paint. See http://www.yachtpaint.com/USA/hotlin...paintguide.pdf
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Old 03-08-2010
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I was afraid I'd have to grind...

As for the fairing itself I'm fairly confident that I want to go with Interlux Watertite and then coat it with Interprotect but there seems to be a lot of conflicting advice out there on how to prepare the lead.

Some seem to say just slap the fairing compound directly on the lead (which appears to be how my boat was originally done and although it did crack and fail eventually, it lasted 20+ years), others seem to say apply a coat of the barrier coat directly to the lead, fair, and then another barrier coat, and finally there's the recommendation for undercoating with the Interlux 353.

Obviously if Interlux recommends the 353 undercoat I don't want to skip it just to save a few bucks now and have to re-do this nasty project in a couple of years but at the same time I have to wonder how necessary it really is?
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Quote:
Originally Posted by 4arch View Post
I was afraid I'd have to grind...

As for the fairing itself I'm fairly confident that I want to go with Interlux Watertite and then coat it with Interprotect but there seems to be a lot of conflicting advice out there on how to prepare the lead.

Some seem to say just slap the fairing compound directly on the lead (which appears to be how my boat was originally done and although it did crack and fail eventually, it lasted 20+ years), others seem to say apply a coat of the barrier coat directly to the lead, fair, and then another barrier coat, and finally there's the recommendation for undercoating with the Interlux 353.

Obviously if Interlux recommends the 353 undercoat I don't want to skip it just to save a few bucks now and have to re-do this nasty project in a couple of years but at the same time I have to wonder how necessary it really is?
Grinding lead is easy, whatever is threre will come right off.

The 353 is Interlux's recommendation. It's real expensive, like $50 a quart...You need to get a couple coats of epoxy on the keel before you fiddle with fairing, those layers are what will keep the rest in place forever. Dont use Watertite to fair, it is very difficult to sand, use a mix of West epoxy/microbaloons.
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If you use a mix of micro-balloons and epoxy, remember to coat the finished, sanded and faired surface with a layer of epoxy to seal the micro-balloons before barrier coating or painting, otherwise, they can and will absorb water.
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