[Public-List] Encapsulated iron keel

[Joseph Balderson]

i did the same for 115 FREYA. Tore out the floor timbers and thoroughly
cleaned and sanded (24grit) of the inside of the hull including the top of
the keel. we poured loose resin down around the edges of the keel then
glassed from the water tank to stern post. across the top of the ballast
keel and up the hull 24" on both sides of course. Epoxy  and 17oz DBM. It
took 4 gal. of resin and 25 yds of cloth.
Here are photos. It really seemed to knit her together nicely. Has any one
put a water tank down beneath the cabin sole?
Joe B

On Mon, Apr 4, 2011 at 8:21 PM, Rachel <penokee at cheqnet.net> wrote:

>
> On Apr 4, 2011, at 3:59 PM, Peter Hurrey wrote:
>
> > Curious if anyone has had any problems with the iron rusting and
> expanding -
> > have not heard of that with the Alberg but it was a problem with the
> Rawson
> > 30, albeit it was iron and concrete. Cheers
>
> I remember reading one (maybe two?) accounts of where someone had had
> rusting/expansion of the keel.  Obviously that's a small percentage of total
> A-30's.
>
> One note is that the keel on some (most? all?) of the A-30s is not
> completely encapsulated.  That is, a token amount of
> resin/cloth-like-substance was laid over the top, but in many (most? all?)
> cases it has long ago failed to be a complete encapsulation.  In addition,
> the after end was shored up with wood and a cementitious material that was
> then poured over with pure resin, which of course cracked (probably when it
> was fairly new).  So there are numerous routes for bilge water/oil/whatever
> to get to the iron pig.
>
> On my A-30 (#221) I dug out all of the "false bilge" material at the after
> end, plus ground off the failed, thin layer of 'glass on the top of the pig,
> then I prepped it all and glassed it in "but good" with epoxy and biaxmat to
> encapsulate it.  The pig in my boat was clean, non-rusty iron in very good
> condition (boat had been in fresh water all its life and clearly lived with
> a dry bilge).  The "false bilge" material, on the other hand, was gas/oil
> soaked and nasty, making the boat smell yucky and causing it to be
> impossible to get it clean and sweet smelling (until I removed it).  Once it
> was removed and re-glassed, I gained a cleanable bilge and a small sump for
> the bilge pump, so it was a win-win for me.
>
> The pig itself is set into a "bed" of the same cementitious material as was
> used to partially fill the "false" bilge.
>
> Of course I can't speak for all A-30's, but that's how mine was, and I have
> read a number of other accounts that were similar (plus seen a few on other
> A-30's I looked at).  I've only looked at the "stick built interior"
> versions, but if I remember correctly, Don, who rebuilt his "liner" version
> (but without a liner) might have had a similar bilge.  Don't quote me on
> that last though (we did compare notes so I could go back and look if
> necessary).
>
> Rachel
> ex-#221
>
>
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