[Rhodes22-list] V berth floatation

[Roger Pihlaja]

Rob,

If you can shift your foam around such that it is level again; then, I think
there is a quick & simple solution to your problem.  Hardware stores & home
centers sell canisters of a polyurethane foam product intended for caulking
and insulating around windows, doors & other openings.  One common trade
name is a product called "Great Stuff", but there are other similar products
on the market.  Once your old floatation foam is level, try injecting the
liquid foam all around the perimeter of the old foam.  The product cannister
will come with a long tube that will enable you to inject the foam as much
as a foot deep.  Liquid polyurethane foam is VERY sticky & will make a great
adhesive bond between your old foam and the inside of the hull.  I would
think that if you injected the liquid foam all around the old foam & let it
harden; that, your old flotation foam would once again be soldidly bonded to
the hull.

Good luck!

Roger Pihlaja
S/V Dynamic Equilibrium

----- Original Message -----
From: "Rob Lowe" <rlowe at vt.edu>
To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
Sent: Thursday, June 03, 2004 8:43 AM
Subject: Re: [Rhodes22-list] V berth floatation


> Roger,
> I see we both have '76's and basically the same set up.  The foam in mine
> has just come unbonded from the hull and has shifted.
> - Rob
>
> ----- Original Message -----
> From: "Roger Pihlaja" <cen09402 at centurytel.net>
> To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> Sent: Thursday, June 03, 2004 8:32 AM
> Subject: Re: [Rhodes22-list] V berth floatation
>
>
> > Michael, Rummy,
> >
> > Until I covered it with marine grade plywood several years ago, the top
&
> > aft end of the bow floatation foam in my 1976 Rhodes 22 was exposed.  As
> old
> > as it is, it was getting kind of brittle or friable; but, it was still
> > bonded quite firmly to the inside of the hull.  It appears the factory
> left
> > the inside of the hull unfinished in the area where the foam was to be
> > installed.  Leaving the hull unfinished provided the foam with a rough
> > surface to attach to.  In adhesive bonding technology, the rough surface
> is
> > said to have a lot of "tooth" that the foam can flow around & interlock
> > with.  So, there is both an adhesive as well as a mechanical bond
between
> > the foam and the hull.
> >
> > If your bow floatation foam is encased in fiberglass, what difference
does
> > it make if the foam is still bonded to the hull or not?  The
encapsulated
> > foam couldn't go anywhere even if it where not bonded to the hull, could
> it?
> >
> > Roger Pihlaja
> > S/V Dynamic Equilibrium
> >
> > ----- Original Message -----
> > From: "Michael Meltzer" <mjm at michaelmeltzer.com>
> > To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> > Sent: Wednesday, June 02, 2004 11:01 PM
> > Subject: Re: [Rhodes22-list] V berth floatation
> >
> >
> > > Stan methods have changed over the years, as of now he uses a polished
> > stainless mold with release on it. The stuff does not stick
> > > to it. The pour the stuff into the space and press the steel to form
it,
> > it ends up forms a good skin that is well "stuck" to the
> > > hull and hard for the workers to mess up. Now In years past.... build
a
> > dam...glass over...etc.. The stuckage most likly is a
> > > "feature" of the form used for that pour(and how well mixed), it
changed
> > over the years with different suppliers which it leading to
> > > different long term results(remember what they think will happen over
20
> > years for the stuff is only a good guess when they first
> > > make it).
> > >
> > > MJM
> > >
> > > ----- Original Message -----
> > > From: <R22RumRunner at aol.com>
> > > To: <rhodes22-list at rhodes22.org>
> > > Sent: Wednesday, June 02, 2004 9:06 PM
> > > Subject: Re: [Rhodes22-list] V berth floatation
> > >
> > >
> > > > QUESTION????
> > > > I've been following this thread about the v berth flotation and I'm
> > > > wondering how you know that the foam has shrunk or whatever. On my
88
> > model, it  is
> > > > entirely encased in fiberglass and without cutting the v berth to
> > shreds, I
> > > > would never know the foams condition. Also, if it has shrunk, what
> > caused  this?
> > > > Rummy
> > > > __________________________________________________
> > > > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> > > >
> > >
> > > __________________________________________________
> > > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> > >
> > >
> >
> >
> > __________________________________________________
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>
> __________________________________________________
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>
>