Re: Stus-List Plexus Removal During Fixed Port Replacement

[Frederick G Street via CnC-List]

Agreed — I used a very sharp chisel to carefully get all of the old Plexus off, 
then sanded and filled with 3M Marine Filler and sanded some more.

— Fred

Fred Street -- Minneapolis
S/V Oceanis (1979 C Landfall 38) -- Bayfield, WI  (JUST LAUNCHED YESTERDAY!!!)

> On May 16, 2017, at 12:06 PM, Dave Godwin via CnC-List 
>  wrote:
> 
> I too would suggest removing all of the original Plexus. That’s what I did 
> prior to painting the decks. It cannot be described as either easy or fun but 
> given the time and money you may be spending, it would be best to get it 
> right from the git-go.
> 
> Best,
> Dave Godwin
> 1982 C 37 - Ronin
> Reedville - Chesapeake Bay
> Ronin’s Overdue Refit 
>> On May 16, 2017, at 12:13 PM, Dennis C. via CnC-List > > wrote:
>> 
>> I used to be a marine repair "pro".  Couple years ago I did a port 
>> replacement on a boat that had ports mounted similarly to C's.  The first 
>> thing I did was to remove ALL the old sealant and properly prep the adhering 
>> surface.  IMHO, and from years of marine repair, proper preparation is 
>> 80-90% of a quality job.
>> 
>> Dennis C.
>> Touche' 35-1 #83
>> Mandeville, LA
>> 
>> On Tue, May 16, 2017 at 11:07 AM, Dr. Mark Bodnar via CnC-List 
>> > wrote:
>> 
>> I considered the same thing - if the plexus is well adhered then why not 
>> just leave it there?
>> 
>> But some of the plexus was not well adhered - some came off fairly easily 
>> with just hand pressure on a chisel.  I decided I didn't want to finish the 
>> job to discover that the foundation attachment was weak in spots and in need 
>> of replacement.
>> 
>> That said I couldn't "pull" my plexus off -- it was rock hard and had to be 
>> chipped away 
>> 
>> Mark
>> 
>> CS30 Prosecco
>> There is no cure for birth and death save to enjoy the interval.
>>   - George Santayana
>> On 2017-05-16 12:35 PM, Bruce Whitmore via CnC-List wrote:
>>> Hello all,
>>> 
>>> I am looking to your collective wisdom on the fixed port replacement on our 
>>> 1994 C 37/40+.  I am aware of the recommendations regarding VHB and Dow 
>>> 795.
>>> 
>>> Due to time constraints, I am having a highly recommended pro do the work, 
>>> and he removed one of the ports today.  He asked a reasonable question, 
>>> since the plexiglass peeled off without pulling any of the Plexus off the 
>>> gelcoat.  When he tried to pull a bit of the Plexus off, as many of you 
>>> have commented, it also pulled some of the gelcoat.  The Plexus also quite 
>>> hard.
>>> 
>>> So, if the Plexus is so well adhered, and it will be very stubborn to come 
>>> off the gelcoat (and do damage in the process), Should I just leave the 
>>> Plexus in place and allow the VHB to attach to it?  
>>> 
>>> I understand the thickness of the VHB might make the window stand out a 
>>> little proud from the fiberglass by comparison, but I'm not sure that's a 
>>> bad tradeoff compared to trying to remove something that might serve as a 
>>> good substrate anyway.
>>> 
>>> Thoughts?  
>>> 
>>> Your input is greatly appreciated!
>>>  
>>> Bruce Whitmore
>>> 
>>> (847) 404-5092  (mobile)
>>> bwhitm...@sbcglobal.net 
>>> 
>>> 
>>> ___
>>> 
>>> This list is supported by the generous donations of our members. If you 
>>> wish to make a contribution to offset our costs, please go to:  
>>> https://www.paypal.me/stumurray 
>>> 
>>> All Contributions are greatly appreciated!
>> 
>> 
>> ___
>> 
>> This list is supported by the generous donations of our members. If you wish 
>> to make a contribution to offset our costs, please go to:  
>> https://www.paypal.me/stumurray 
>> 
>> All Contributions are greatly appreciated!
>> 
>> 
>> ___
>> 
>> This list is supported by the generous donations of our members. If you wish 
>> to make a contribution to offset our costs, please go to:  
>> https://www.paypal.me/stumurray 
>> 
>> All Contributions are greatly appreciated!
> 
> ___
> 
> This list is supported by the generous donations of our members. If you wish 
> to make a contribution to offset our costs, please go to:  
> https://www.paypal.me/stumurray
> 
> All Contributions are greatly appreciated!

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Re: Stus-List Plexus Removal During Fixed Port Replacement

[Dave Godwin via CnC-List]

I too would suggest removing all of the original Plexus. That’s what I did 
prior to painting the decks. It cannot be described as either easy or fun but 
given the time and money you may be spending, it would be best to get it right 
from the git-go.

Best,
Dave Godwin
1982 C 37 - Ronin
Reedville - Chesapeake Bay
Ronin’s Overdue Refit 
> On May 16, 2017, at 12:13 PM, Dennis C. via CnC-List  
> wrote:
> 
> I used to be a marine repair "pro".  Couple years ago I did a port 
> replacement on a boat that had ports mounted similarly to C's.  The first 
> thing I did was to remove ALL the old sealant and properly prep the adhering 
> surface.  IMHO, and from years of marine repair, proper preparation is 80-90% 
> of a quality job.
> 
> Dennis C.
> Touche' 35-1 #83
> Mandeville, LA
> 
> On Tue, May 16, 2017 at 11:07 AM, Dr. Mark Bodnar via CnC-List 
> > wrote:
> 
> I considered the same thing - if the plexus is well adhered then why not just 
> leave it there?
> 
> But some of the plexus was not well adhered - some came off fairly easily 
> with just hand pressure on a chisel.  I decided I didn't want to finish the 
> job to discover that the foundation attachment was weak in spots and in need 
> of replacement.
> 
> That said I couldn't "pull" my plexus off -- it was rock hard and had to be 
> chipped away 
> 
> Mark
> 
> CS30 Prosecco
> There is no cure for birth and death save to enjoy the interval.
>   - George Santayana
> On 2017-05-16 12:35 PM, Bruce Whitmore via CnC-List wrote:
>> Hello all,
>> 
>> I am looking to your collective wisdom on the fixed port replacement on our 
>> 1994 C 37/40+.  I am aware of the recommendations regarding VHB and Dow 
>> 795.
>> 
>> Due to time constraints, I am having a highly recommended pro do the work, 
>> and he removed one of the ports today.  He asked a reasonable question, 
>> since the plexiglass peeled off without pulling any of the Plexus off the 
>> gelcoat.  When he tried to pull a bit of the Plexus off, as many of you have 
>> commented, it also pulled some of the gelcoat.  The Plexus also quite hard.
>> 
>> So, if the Plexus is so well adhered, and it will be very stubborn to come 
>> off the gelcoat (and do damage in the process), Should I just leave the 
>> Plexus in place and allow the VHB to attach to it?  
>> 
>> I understand the thickness of the VHB might make the window stand out a 
>> little proud from the fiberglass by comparison, but I'm not sure that's a 
>> bad tradeoff compared to trying to remove something that might serve as a 
>> good substrate anyway.
>> 
>> Thoughts?  
>> 
>> Your input is greatly appreciated!
>>  
>> Bruce Whitmore
>> 
>> (847) 404-5092  (mobile)
>> bwhitm...@sbcglobal.net 
>> 
>> 
>> ___
>> 
>> This list is supported by the generous donations of our members. If you wish 
>> to make a contribution to offset our costs, please go to:  
>> https://www.paypal.me/stumurray 
>> 
>> All Contributions are greatly appreciated!
> 
> 
> ___
> 
> This list is supported by the generous donations of our members. If you wish 
> to make a contribution to offset our costs, please go to:  
> https://www.paypal.me/stumurray 
> 
> All Contributions are greatly appreciated!
> 
> 
> ___
> 
> This list is supported by the generous donations of our members. If you wish 
> to make a contribution to offset our costs, please go to:  
> https://www.paypal.me/stumurray
> 
> All Contributions are greatly appreciated!

___

This list is supported by the generous donations of our members. If you wish to 
make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!

Re: Stus-List Plexus Removal During Fixed Port Replacement

[Gary Russell via CnC-List]

I would get a small grinder (perhaps a Dremel) and carefully grind it off.
Gary
S/V Kaylarah
'90 C 37+
East Greenwich, RI, USA

~~~_/)~~


On Tue, May 16, 2017 at 12:07 PM, Dr. Mark Bodnar via CnC-List <
cnc-list@cnc-list.com> wrote:

>
> I considered the same thing - if the plexus is well adhered then why not
> just leave it there?
>
> But some of the plexus was not well adhered - some came off fairly easily
> with just hand pressure on a chisel.  I decided I didn't want to finish the
> job to discover that the foundation attachment was weak in spots and in
> need of replacement.
>
> That said I couldn't "pull" my plexus off -- it was rock hard and had to
> be chipped away
>
>
> Mark
>
> CS30 Prosecco
>
>
> There is no cure for birth and death save to enjoy the interval.
>   - George Santayana
>
> On 2017-05-16 12:35 PM, Bruce Whitmore via CnC-List wrote:
>
> Hello all,
>
> I am looking to your collective wisdom on the fixed port replacement on
> our 1994 C 37/40+.  I am aware of the recommendations regarding VHB and
> Dow 795.
>
> Due to time constraints, I am having a highly recommended pro do the work,
> and he removed one of the ports today.  He asked a reasonable question,
> since the plexiglass peeled off without pulling any of the Plexus off the
> gelcoat.  When he tried to pull a bit of the Plexus off, as many of you
> have commented, it also pulled some of the gelcoat.  The Plexus also quite
> hard.
>
> So, if the Plexus is so well adhered, and it will be very stubborn to come
> off the gelcoat (and do damage in the process), Should I just leave the
> Plexus in place and allow the VHB to attach to it?
>
> I understand the thickness of the VHB might make the window stand out a
> little proud from the fiberglass by comparison, but I'm not sure that's a
> bad tradeoff compared to trying to remove something that might serve as a
> good substrate anyway.
>
> Thoughts?
>
> Your input is greatly appreciated!
>
> Bruce Whitmore
>
> (847) 404-5092 (mobile)
> bwhitm...@sbcglobal.net
>
>
> ___
>
> This list is supported by the generous donations of our members. If you wish 
> to make a contribution to offset our costs, please go to:  
> https://www.paypal.me/stumurray
>
> All Contributions are greatly appreciated!
>
>
>
> ___
>
> This list is supported by the generous donations of our members. If you
> wish to make a contribution to offset our costs, please go to:
> https://www.paypal.me/stumurray
>
> All Contributions are greatly appreciated!
>
>
___

This list is supported by the generous donations of our members. If you wish to 
make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!

Re: Stus-List Plexus Removal During Fixed Port Replacement

[Dennis C. via CnC-List]

I used to be a marine repair "pro".  Couple years ago I did a port
replacement on a boat that had ports mounted similarly to C's.  The first
thing I did was to remove ALL the old sealant and properly prep the
adhering surface.  IMHO, and from years of marine repair, proper
preparation is 80-90% of a quality job.

Dennis C.
Touche' 35-1 #83
Mandeville, LA

On Tue, May 16, 2017 at 11:07 AM, Dr. Mark Bodnar via CnC-List <
cnc-list@cnc-list.com> wrote:

>
> I considered the same thing - if the plexus is well adhered then why not
> just leave it there?
>
> But some of the plexus was not well adhered - some came off fairly easily
> with just hand pressure on a chisel.  I decided I didn't want to finish the
> job to discover that the foundation attachment was weak in spots and in
> need of replacement.
>
> That said I couldn't "pull" my plexus off -- it was rock hard and had to
> be chipped away
>
>
> Mark
>
> CS30 Prosecco
>
>
> There is no cure for birth and death save to enjoy the interval.
>   - George Santayana
>
> On 2017-05-16 12:35 PM, Bruce Whitmore via CnC-List wrote:
>
> Hello all,
>
> I am looking to your collective wisdom on the fixed port replacement on
> our 1994 C 37/40+.  I am aware of the recommendations regarding VHB and
> Dow 795.
>
> Due to time constraints, I am having a highly recommended pro do the work,
> and he removed one of the ports today.  He asked a reasonable question,
> since the plexiglass peeled off without pulling any of the Plexus off the
> gelcoat.  When he tried to pull a bit of the Plexus off, as many of you
> have commented, it also pulled some of the gelcoat.  The Plexus also quite
> hard.
>
> So, if the Plexus is so well adhered, and it will be very stubborn to come
> off the gelcoat (and do damage in the process), Should I just leave the
> Plexus in place and allow the VHB to attach to it?
>
> I understand the thickness of the VHB might make the window stand out a
> little proud from the fiberglass by comparison, but I'm not sure that's a
> bad tradeoff compared to trying to remove something that might serve as a
> good substrate anyway.
>
> Thoughts?
>
> Your input is greatly appreciated!
>
> Bruce Whitmore
>
> (847) 404-5092 (mobile)
> bwhitm...@sbcglobal.net
>
>
> ___
>
> This list is supported by the generous donations of our members. If you wish 
> to make a contribution to offset our costs, please go to:  
> https://www.paypal.me/stumurray
>
> All Contributions are greatly appreciated!
>
>
>
> ___
>
> This list is supported by the generous donations of our members. If you
> wish to make a contribution to offset our costs, please go to:
> https://www.paypal.me/stumurray
>
> All Contributions are greatly appreciated!
>
>
___

This list is supported by the generous donations of our members. If you wish to 
make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!

Re: Stus-List Plexus Removal During Fixed Port Replacement

[Dr. Mark Bodnar via CnC-List]

  
  


I considered the same thing - if the plexus is well adhered then
  why not just leave it there?
But some of the plexus was not well adhered - some came off
  fairly easily with just hand pressure on a chisel.  I decided I
  didn't want to finish the job to discover that the foundation
  attachment was weak in spots and in need of replacement.
That said I couldn't "pull" my plexus off -- it was rock hard and
  had to be chipped away 



Mark
CS30 Prosecco



There is no cure for birth and death save to enjoy the interval.
  - George Santayana
On 2017-05-16 12:35 PM, Bruce Whitmore
  via CnC-List wrote:


  
Hello all,

  
I am looking to your
collective wisdom on the fixed port replacement on our 1994
C 37/40+.  I am aware of the recommendations regarding
VHB and Dow 795.

  
Due to time
constraints, I am having a highly recommended pro do the
work, and he removed one of the ports today.  He asked a
reasonable question, since the plexiglass peeled off without
pulling any of the Plexus off the gelcoat.  When he tried to
pull a bit of the Plexus off, as many of you have commented,
it also pulled some of the gelcoat.  The Plexus also quite
hard.

  
So, if the Plexus is
so well adhered, and it will be very stubborn to come off
the gelcoat (and do damage in the process), Should I just
leave the Plexus in place and allow the VHB to attach to
it?  
  

  
I understand the
thickness of the VHB might make the window stand out a
little proud from the fiberglass by comparison, but I'm not
sure that's a bad tradeoff compared to trying to remove
something that might serve as a good substrate anyway.

  
Thoughts? 

  

  
Your
input is greatly appreciated!
 
Bruce
  Whitmore
  
  (847) 404-5092 (mobile)
  bwhitm...@sbcglobal.net
  
  
  
  
  
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This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to:  https://www.paypal.me/stumurray

All Contributions are greatly appreciated!



  


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Stus-List Plexus Removal During Fixed Port Replacement

[robert via CnC-List]

Bruce:

I replaced my ports approx. 7 years ago.the old ones were help in 
place by Plexus.I used a Dremmel with a fine bit to remove the 
Plexus.it had to be removed otherwise the new ports would not 'seat 
properly' and flush with the side cabin top(s).   I did not want the new 
ports protruding out beyond the side of the cabin.


If a pro is doing it, I'd have the pro do it so it will looklike a pro 
did the job.


Rob Abbott
AZURA
C 32- 84
Halifax, N.S.



On 2017-05-16 12:35 PM, Bruce Whitmore via CnC-List wrote:

Hello all,

I am looking to your collective wisdom on the fixed port replacement 
on our 1994 C 37/40+.  I am aware of the recommendations regarding 
VHB and Dow 795.


Due to time constraints, I am having a highly recommended pro do the 
work, and he removed one of the ports today.  He asked a reasonable 
question, since the plexiglass peeled off without pulling any of the 
Plexus off the gelcoat.  When he tried to pull a bit of the Plexus 
off, as many of you have commented, it also pulled some of the 
gelcoat.  The Plexus also quite hard.


So, if the Plexus is so well adhered, and it will be very stubborn to 
come off the gelcoat (and do damage in the process), Should I just 
leave the Plexus in place and allow the VHB to attach to it?


I understand the thickness of the VHB might make the window stand out 
a little proud from the fiberglass by comparison, but I'm not sure 
that's a bad tradeoff compared to trying to remove something that 
might serve as a good substrate anyway.


Thoughts?

Your input is greatly appreciated!
Bruce Whitmore

(847) 404-5092 (mobile)
bwhitm...@sbcglobal.net


___

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make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!


___

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make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!

Stus-List Plexus Removal During Fixed Port Replacement

[Bruce Whitmore via CnC-List]

Hello all,
I am looking to your collective wisdom on the fixed port replacement on our 
1994 C 37/40+.  I am aware of the recommendations regarding VHB and Dow 795.
Due to time constraints, I am having a highly recommended pro do the work, and 
he removed one of the ports today.  He asked a reasonable question, since the 
plexiglass peeled off without pulling any of the Plexus off the gelcoat.  When 
he tried to pull a bit of the Plexus off, as many of you have commented, it 
also pulled some of the gelcoat.  The Plexus also quite hard.
So, if the Plexus is so well adhered, and it will be very stubborn to come off 
the gelcoat (and do damage in the process), Should I just leave the Plexus in 
place and allow the VHB to attach to it?  

I understand the thickness of the VHB might make the window stand out a little 
proud from the fiberglass by comparison, but I'm not sure that's a bad tradeoff 
compared to trying to remove something that might serve as a good substrate 
anyway.
Thoughts?  

Your input is greatly appreciated! Bruce Whitmore

(847) 404-5092 (mobile)
bwhitm...@sbcglobal.net
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make a contribution to offset our costs, please go to:  
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