[Public-List] Encapsulated iron keel

[Peter Hurrey]

Thanks Rachael, I am considering buying back Rocinante and never realised
the problems there could be with rusting iron. Don't know if that is a
problem she has but something to check out - trouble is it's a liner boat -
540 - so not sure how one would check that out. Cheers

Regards,

Peter  Hurrey
Phone 07 54789788
Mobile 0429705067
Email: phurrey at tpg.com.au and  phurrey at dodo.com.au

15 Lingard St Palmwoods Queensland 4555	 


-----Original Message-----
From: public-list-bounces at lists.alberg30.org
[mailto:public-list-bounces at lists.alberg30.org] On Behalf Of Rachel
Sent: Tuesday, 5 April 2011 10:22 AM
To: Alberg 30 Public List -- open to all
Subject: Re: [Public-List] Encapsulated iron keel


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


_______________________________________________
These businesses support your Association:
http://www.alberg30.org/store/A30supporters.html
Please support them.
_______________________________________________
Public-List mailing list
Public-List at lists.alberg30.org
http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org



 1302034367.0