[Rhodes22-list] Rubber gasket

Patrick Cheung chitakcheung at gmail.com
Mon Aug 20 08:48:47 EDT 2018 

Graham, here’s the two pictures of the v block.  Hope pictures will go through.

I placed the order for neoprene.
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> On Aug 19, 2018, at 10:57 AM, Curtis Ruck via Rhodes22-list <rhodes22-list at rhodes22.org> wrote:
> 
> It is definitely closed cell, to my knowledge all neoprene is.   I looked
> at the different thicknesses and soft/firm and ordered two actually, a 1/4"
> that was more firm, and the 3/16.  When I got them, decided on the 3/16,
> because once compressed, its basically solid rubber, and the surface of my
> trunk was less than perfectly smooth, so i chose it based on
> compress-ability.
> 
> I don't believe it leaks, but its never been in the water long enough to
> really tell.  I'd wager it does, but without having a slip to keep it in, i
> have no real way to know.
> --
> Curtis
> 
> 
>> On Sun, Aug 19, 2018 at 8:41 AM Graham Stewart <gstewart8 at cogeco.ca> wrote:
>> 
>> 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
>>> __________________________________________________
>>> 
>> __________________________________________________
>> To subscribe/unsubscribe go to
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>> 
>> For the list Charter and help with using the mailing list and archives go
>> to http://www.rhodes22.org/list
>> __________________________________________________
>> 
>> 
> __________________________________________________
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