I love butyl tape as a sealant for hardware above the waterline and used it
extensively on my boat but you need to keep in mind that it has very little
adhesive strength - which you want with windows. Further, to create a proper
seal it needs to be compressed very firmly until the butyl squeezes out of
the joint. Personally I would be reluctant to use it for windows where you
want the joint to have some space so that there is room for movement through
the difference in thermal expansion between the window and the deck -
especially on larger windows.


Graham Stewart
Agile 1976 Rhodes 22
Kingston Ontario

-----Original Message-----
From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of
David Baines
Sent: Thursday, January 10, 2019 8:15 PM
To: The Rhodes 22 Email List
Subject: Re: [Rhodes22-list] Silicone sealant used on cabin windows

Anybody rebedded the ports with butyl tape? Last weekend I took mine out
and was planning to do so. I refuse to use silicone.

DJ

On Thu, Jan 10, 2019 at 6:30 PM Graham Stewart <gstewart8 at cogeco.ca> wrote:

> One of the few places where one uses silicone on a boat is with plastic
> windows. Stuff like 5200 or 4200 are incompatible. I don't know what was
> used in this particular case but I suspect it was silicone and that would
> probably be the safest choice if you can't identify what was used.
>
>
> Graham Stewart
> Agile 1976 Rhodes 22
> Kingston Ontario
>
>
>
> -----Original Message-----
> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf
> Of
> Art Czerwonky via Rhodes22-list
> Sent: Thursday, January 10, 2019 4:42 PM
> To: The Rhodes 22 Email List
> Subject: [Rhodes22-list] Silicone sealant used on cabin windows
>
> Guys,One of our veteran skippers may know the special sealant which is
used
> on the windows on our boat. It is unique because of the material used to
> make the window frame. Anyone recall?Art
>
>
>
>
>
>
> Sent from Yahoo Mail on Android
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