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 Post subject: Re: Hull 369 Waterborn Refit
PostPosted: 14 Feb 2018 19:29 
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Skipper

Joined: 21 Oct 2006 18:12
Posts: 257
Weird, mine seemed more like concrete (hull 136)

Richard


 
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 Post subject: Re: Hull 369 Waterborn Refit
PostPosted: 15 Feb 2018 07:50 
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Skipper

Joined: 04 Aug 2013 13:33
Posts: 205
Mine too and I assumed Tartan used a ferrocement mixture in the bottom of the keel until I saw the images under the recent post named:
Post subject: Re: False keel section and water getting in through keel

The glass around the keel bottom has (in some T37's) voids in the laminate. I think the grit found in the bolt holes might be ground up glass and resin from movement of the bolts. In any event, the laminate doesn't appear to be sound enough to hold the bolts by just drilling and tapping to the next larger size.

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Dave Lorick
Lunacy #198
Tampa, FL


 
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 Post subject: Re: Hull 369 Waterborn Refit
PostPosted: 15 Feb 2018 13:50 
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Rail Meat

Joined: 26 Apr 2017 15:35
Posts: 18
Agreed. The laminate at the bottom of the keel is less than stellar. What came out of mine was not resin. It was a very soft metallic.

I've installed with West System and 404. When I injected into one hole, it started squirting our of other holes, so there was definitely more voids in the laminate. I filled all of that until it wouldn't take any more before installing the centerboard.

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Chris Duer
Waterborn
Hull 369
Beaufort, SC


 
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 Post subject: Re: Hull 369 Waterborn Refit
PostPosted: 16 Feb 2018 14:55 
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Skipper

Joined: 24 Sep 2013 09:20
Posts: 357
While I was working on stopping those leaks through the keel, I actually tracked down a guy who used to worked building Tartans in the 80s. He called what was poured into the keel around the ballast an "epoxy slurry". If I remember correctly he said the slurry was epoxy mixed with sand?

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Zach Duncan
SV Holiday
Hull# 280


 
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 Post subject: Re: Hull 369 Waterborn Refit
PostPosted: 16 Feb 2018 17:50 
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Skipper

Joined: 04 Aug 2013 13:33
Posts: 205
Epoxy mixed with sand would match the cement-like material several of us have found when drilling out the stripped thread.
Thanks

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Dave Lorick
Lunacy #198
Tampa, FL


 
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 Post subject: Re: Hull 369 Waterborn Refit
PostPosted: 16 Feb 2018 18:23 
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Skipper

Joined: 29 Dec 2006 09:38
Posts: 520
When the yard dropped the keel of my deep fin keeled T37 last year, they found what they described as “trash that looked as though it had been swept from the floor of the factory” mixed in with the resin in the joint. The lay up was quite good, but a lot of the “fitting” of the floor and keel were really crappy quality hodge podge. Nothing that would make you doubt the boat structurally, and they did not think anyone would see it, but it was depressing just the same.

Ray Durkee
T37 #373


 
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 Post subject: Re: Hull 369 Waterborn Refit
PostPosted: 24 Apr 2019 12:36 
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Rail Meat

Joined: 26 Apr 2017 15:35
Posts: 18
Enough of boat work for a while. Waterborn is coming along great. New paint, sails and dodger. Next to get the Bimini on and work out the new solar panel location.

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Chris Duer
Waterborn
Hull 369
Beaufort, SC


 
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