Any tricks with butyl tape I didn’t use bed it
I sealed the screw hole with epoxy and butyl tape and still leaked
I put 4200 instead it stop for a bit than it restarted again
Does have a video how to do this properly

Joel Delamirande
*www.jdroofing.ca <http://www.jdroofing.ca>*



On Mon, Nov 10, 2025 at 11:02 PM John Christopher via CnC-List <
[email protected]> wrote:

> You can use a chamfer drill bit.
>
> /John
>
> On Nov 10, 2025, at 10:15 PM, Janet Schilling via CnC-List <
> [email protected]> wrote:
>
> Great advice gentlemen! Thank you. I ordered some Bed-it. To bevel under
> the chain plates what did you use? Some kind of wood rasp or file? Can I
> use one of my countersinks I use on wood to countersink the bolt or screw
> holes on the deck to rebed them with a little of the butyl tape?
>
> Thanks again.
> Janet
>
> Sent from my iPhone
>
> On Nov 10, 2025, at 9:45 PM, John Read via CnC-List <[email protected]>
> wrote:
>
> 
> Janet.  Agree with Nathan's process. In my case tried various sealers
> without success mostly because would not stick to stainless chainplates.
> Over 10 years ago I pulled the chainplates, cleaned them, ensured no
> degraded balsa in deck or plywood, beveled the deck top side,  installed
> chainplates, put in butyl so filled bevel and proud of deck, installed trim
> on top of butyl.   No leaks since
> John Read
> Legacy Ill 1982 C&C 34
> Noank, CT
>
> On Mon, Nov 10, 2025, 9:22 PM Nathan Post via CnC-List <
> [email protected]> wrote:
>
>> Janet,
>>
>> I used bed-it butyl tape https://bed-it.com/ on my chain plates when I
>> did a refit in 2000. So far no leaks! If your boat is set up like my 1981
>> C&C 34 it is best if you can remove the stays entirely so the plate comes
>> all the way up. Should be able to use a halyard to the toe rail as a
>> temporary stay. I cut a quarter inch angle into the fiberglass around the
>> chain plate to ensure that the bed-it would have room to make a seal.  Put
>> a nice rolled bead in there and then put tape on the bottom of the plate
>> before screwing it back down.
>>
>> I generally use bed-it for everything above the waterline by the way.
>> Seems to work pretty well even around self tapping screws and is much
>> easier to both use and to replace than 3M products or other sealants.  Does
>> take a bit more time to seep out so you have to tighten screws
>> progressively and cut away the excess a few times over successive weeks.
>>
>> Nathan
>>
>>
>>
>> ~~~
>> Nathan Post
>> +1 (781)  605-8671
>>
>>
>> On Mon, Nov 10, 2025 at 8:58 PM Janet Schilling via CnC-List <
>> [email protected]> wrote:
>>
>>> What kind of sealant/caulk is recommended? It was suggested that the
>>> horizontal deck plate could be unscrewed and lifted enough off the deck to
>>> add sealant of some kind underneath, then screw back down.
>>> Thanks.
>>> BTW, we removed the old caulk around all the port lites and redid with
>>> Dow 795 and tightened all the screws. It was a success! Not perfect, but no
>>> leaks.
>>> Janet
>>>
>>> Sent from my iPhone
>>> November is the time of the year when my Internet bills come in.  It's
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>>> Photo Album.  Please help by making a small contribution using PayPal at:
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>>> greatly appreciated.
>>>
>> November is the time of the year when my Internet bills come in.  It's
>> also the time when you can show your appreciation of this list and the C&C
>> Photo Album.  Please help by making a small contribution using PayPal at:
>> https://www.paypal.com/paypalme/stumurray  All contributions are greatly
>> appreciated.
>
> November is the time of the year when my Internet bills come in.  It's
> also the time when you can show your appreciation of this list and the C&C
> Photo Album.  Please help by making a small contribution using PayPal at:
> https://www.paypal.com/paypalme/stumurray  All contributions are greatly
> appreciated.
>
> November is the time of the year when my Internet bills come in.  It's
> also the time when you can show your appreciation of this list and the C&C
> Photo Album.  Please help by making a small contribution using PayPal at:
> https://www.paypal.com/paypalme/stumurray  All contributions are greatly
> appreciated.
>
> November is the time of the year when my Internet bills come in.  It's
> also the time when you can show your appreciation of this list and the C&C
> Photo Album.  Please help by making a small contribution using PayPal at:
> https://www.paypal.com/paypalme/stumurray  All contributions are greatly
> appreciated.
November is the time of the year when my Internet bills come in.  It's also the 
time when you can show your appreciation of this list and the C&C Photo Album.  
Please help by making a small contribution using PayPal at:  
https://www.paypal.com/paypalme/stumurray  All contributions are greatly 
appreciated.

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