The neoprene that Curtis found looks great but is referred to a "sponge" neoprene. I expect that means it is softer than the usual stuff and might make a better seal assuming that it is closed cell. Does anyone have a more informed opinion than mine on this difference?

Graham

-----Original Message-----
From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of Curtis Ruck via Rhodes22-list
Sent: Saturday, August 18, 2018 7:26 PM
To: The Rhodes 22 Email List
Subject: Re: [Rhodes22-list] Rubber gasket

I used this from Amazon:
https://www.amazon.com/gp/product/B003HDILE4/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
on my 1979.  Seems to work, but mine is only in the water ~2-3 hours a
time, and there is always water in the bilge when I start sailing (I
believe due to the cockpit drains getting clogged, and the water making up
and in the cockpit storage, which drains through to the bilge.
--
Curtis


On Sat, Aug 18, 2018 at 6:40 PM Graham Stewart <gstewart8 at cogeco.ca> wrote:

> Just so that there is no confusion, I did make a neoprene gasket and it is
> installed. It is 3/16 thick but has a fine ribbed pattern that I think did
> not compress enough to make a perfect seal. It might also be too hard. So I
> am only using the butyl to give the neoprene a smoother surface - not
> substituting the neoprene with the butyl. Nevertheless, I think I will
> replace the gasket when I can find a Canadian source.
>
> Another issue that might explain my difficulty getting a good seal is that
> it looks to me like the flange on the cap might have been trimmed at some
> point. The lip is only about 1 1/4 inch wide and allows for only a single
> row of bolts. The base is quite a bit wider and appears to have had a
> second row of bolts at some point. It makes sense that both parts would be
> the same width.
>
> I really don't want to take this apart again to replace the gasket and
> rebuild the cap.
>
> Graham
>
> -----Original Message-----
> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf
> Of Gary Novotny
> Sent: Saturday, August 18, 2018 2:40 PM
> To: The Rhodes 22 Email List
> Subject: Re: [Rhodes22-list] Rubber gasket
>
> Yep, totally agree that things bedded with urethane sealants are a bitch
> to remove. Only use this stuff as a last resort if you can’t find proper
> gasket material. Also I'd be sure the pendant and  all blocks are in
> excellent condition. If not, definitely replace. The problem I see with
> Butyl for this application is that it has no adhesive properties , so
> you are counting on the cap to trunk compression to keep it sealed and
> it’s not resilient like a neoprene gasket. If the trunk is subject to
> any significant flexing at all then the compression seal could start to
> develop leaks. If I did use Butyl tape, I'd keep a close eye on it. One
> good thing is that Butyl tape would be VERY easy to replace.
>
> Gary
>
>
> On 8/18/2018 12:55 PM, Graham Stewart wrote:
> > Like Gary I used butyl extensively as a bedding material for my hardware
> and it is a dream to use compared to other sealants. The only place below
> the waterline where I used it was the centerboard cap and only then because
> I was getting desperate to find a solution. Gary's cautionary note is  good
> reason to keep looking for the proper neoprene - something I will do
> if/when the butyl fails or I have to remove the cap for any other reason.
> >
> > 4200 sealant is easier to remove than 5200, which is almost impossible
> without destroying the parts,  but would still be extremely difficult -
> especially for such a large area. When I bought my boat a previous owner
> had used one of those high-adhesive sealants  and I spent literally days
> getting the cap off using a torch to heat a large knife that I slowly moved
> along the join. Even then I still broke the cap into two pieces and had to
> make extensive repairs to the cap and the base.
> >
> > I don't know if there is anything like butyl that has low adhesive
> characteristics and is still rated for below the waterline use.
> >
> > For the time being the butyl is working but I will let the list know if
> it begins to fail - assuming the boat doesn't sink and take me with it.
> >
> >
> > Graham Stewart
> > Agile 1976 Rhodes 22
> > Kingston Ontario
> >
> >
> >
> >
> > -----Original Message-----
> > From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On
> Behalf Of Gary Novotny
> > Sent: Saturday, August 18, 2018 9:38 AM
> > To: The Rhodes 22 Email List
> > Subject: Re: [Rhodes22-list] Rubber gasket
> >
> > Guys,
> >
> > I love Butyl tape, it's really great as a bedding compound. I completed
> > the first round of restoration on a boat (not my Rhodes) three months
> > ago and I used this stuff extensively for all the deck fittings and a
> > hatch. Butyl tape like all sealants needs a clean surface so use Remov
> > or DeBond first if the surface has prior sealant contamination. I can't
> > say enough good things about the ease of Butyl tape installation and
> > cleanup. All the leaking fittings are fixed now. It is too early for me
> > to report on longevity, but others have had very good results and when
> > you do need to re-bed its easy.
> >
> > I wouldn't be comfortable using this below the waterline however. If you
> > can't get neoprene sheet, you might be better off resorting to a
> > traditional moderately adhesive sealant like 3M 4200. (Do NOT use 5200)
> >
> > Just my 2cents.
> >
> > Gary
> >
> >
> > On 8/17/2018 2:56 PM, Graham Stewart wrote:
> >> Patrick:
> >>
> >> Glad to hear that there is another Rhodie in Canada. I thought Phil
> Gautier and I were the only ones.
> >>
> >> I replaced my gasket last year but was unable to find the proper
> neoprene. I finally got some neoprene from a neighbor but it wasn't smooth
> surfaced so it leaked no matter how many bolts I added. I finally stopped
> the leaks by using butyl tape - not an ideal solution, but it worked well.
> Butyl is an excellent sealant but has very low adhesive qualities so it
> should be easy to remove in the future should that be necessary. The tape
> is about 3/4" wide but I only used about half of that on both sides of the
> gasket as I didn't want to have it squeeze into the centerboard slot. I
> would not use the butyl that comes in a tube. In fact only use the butyl if
> you can't get the proper neoprene.
> >>
> >>
> >> Graham Stewart
> >> Agile 1976 Rhodes 22
> >> Kingston Ontario.
> >>
> >>
> >> -----Original Message-----
> >> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On
> Behalf Of Patrick Cheung
> >> Sent: Friday, August 17, 2018 2:11 PM
> >> To: The Rhodes 22 Email List
> >> Subject: Re: [Rhodes22-list] Rubber gasket
> >>
> >> Gary,
> >>
> >> I found the perfect one from Amazon but they won’t ship to Canada.
> Gonna keep looking.
> >>
> >> Thx, Patrick
> >>
> >>
> >>
> >>> On Aug 17, 2018, at 1:32 PM, Gary Novotny <gjnovotny at comcast.net>
> wrote:
> >>>
> >>> Patrick,
> >>>
> >>> When I did my centerboard trunk maintenance four years ago I used
> neoprene sheet I bought off of Amazon. It seems to have worked well.
> >>>
> >>> Gary
> >>>
> >>> Moon shadow 1978 R22
> >>>
> >>>
> >>>> On 8/17/2018 11:50 AM, Patrick Cheung wrote:
> >>>> Dear Rhodies,
> >>>>
> >>>> It is time to repair the center board. I reached out to Stan for a
> piece of
> >>>> the rubber but he is super busy right now.
> >>>>
> >>>> I seems to recall some Rhodies may have extra rubber left over from
> their
> >>>> repair. I am hoping I can buy a stripe off you, if you are willing to
> sell.
> >>>>
> >>>> Patrick
> >>>> Duck, '84
> >>>> Lake Simcoe, Ontario, Canada
> >>>> __________________________________________________
> >>>> To subscribe/unsubscribe go to
> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
> >>>>
> >>>> For the list Charter and help with using the mailing list and
> archives go to http://www.rhodes22.org/list
> >>>> __________________________________________________
> >>>>
> >>> --
> >>> Gary Novotny
> >>> 7309 S Indian River Drive
> >>> Fort Pierce Florida 34982
> >>> 772-4660956 home
> >>> 772-9715753 cell
> >>> gjnovotny at comcast.net
> >>>
> >>> __________________________________________________
> >>> To subscribe/unsubscribe go to
> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
> >>>
> >>> For the list Charter and help with using the mailing list and archives
> go to http://www.rhodes22.org/list
> >>> __________________________________________________
> >> __________________________________________________
> >> To subscribe/unsubscribe go to
> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
> >>
> >> For the list Charter and help with using the mailing list and archives
> go to http://www.rhodes22.org/list
> >> __________________________________________________
> >>
> >> __________________________________________________
> >> To subscribe/unsubscribe go to
> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
> >>
> >> For the list Charter and help with using the mailing list and archives
> go to http://www.rhodes22.org/list
> >> __________________________________________________
>
> --
> Gary Novotny
> 7309 S Indian River Drive
> Fort Pierce Florida 34982
> 772-4660956 home
> 772-9715753 cell
> gjnovotny at comcast.net
>
> __________________________________________________
> To subscribe/unsubscribe go to
> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>
> For the list Charter and help with using the mailing list and archives go
> to http://www.rhodes22.org/list
> __________________________________________________
>
> __________________________________________________
> To subscribe/unsubscribe go to
> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>
> For the list Charter and help with using the mailing list and archives go
> to http://www.rhodes22.org/list
> __________________________________________________
>
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