Re: Stus-List Glassing In Cabin Wall Holes

2020-06-15 Thread Randy Stafford via CnC-List 
Thanks Nathan!

Cheers,
Randy

> On Jun 14, 2020, at 4:51 AM, Nathan Post  wrote:
> 
> Randy,
> I just did this for a broken autopilot that was mounted in the sides of my 
> cockpit that wasn’t working.  My strategy was to use an angle grinder to 
> taper the edges of the hole back to try and get at least an inch of exposed 
> glass on an angle all around the hole.  Then I took a piece of roughly 0.1” 
> thick g10 that was bigger then the hole and glued it in behind.  First sand 
> the G10 with course grit paper, clean with acetone and then use a fast 
> setting adhesive (I used 3M 8805NS) and tape in place until set.  In your 
> case you need to get it between the liner and the deck laminate so if you 
> don’t have access from elsewhere you may need to do it in more than one 
> piece. Then just use masking tape on the back of the seam when you go to 
> laminate glass in. Once the g10 is bonded and cured you can wet lay glass 
> fabric in to fill the hole.  use slow epoxy and orienting the layers in 
> different directions. Doesn’t matter if the glass goes slightly beyond the 
> hole- you can sand it off later. When that is cured sand off areas that stick 
> out using a large orbital sander with course grit and fill areas that are not 
> thick enough with fairing compound. Sand again to 120 grit. Prime and paint 
> or gel coat to finish.
> 
> You may want to stick with a teak or starboard cover plate on the inside as I 
> think it will be harder to match the liner well and if you put instruments in 
> you may want access to wire the backside anyway.
> 
> - -
> Nathan Post
> S/V Wisper
> 
>> On Jun 13, 2020, at 11:29 PM, Randy Stafford via CnC-List 
>>  wrote:
>> 
>> Hello Listers,
>> 
>> Today I removed a broken compass from Grenadine’s cabin wall, and a teak 
>> nacelle it was in.   There’s a 4.5” circular hole in the cabin wall and 
>> interior liner.  Right now I’m covering it temporarily with a teak panel.  
>> Longer term I might like to glass in the holes for that and other 
>> instruments, and go to more flat-panel electronic instruments.
>> 
>> So, can anybody advise me on the procedure for re-glassing a 4.5” circular 
>> hole in a cabin wall, and liner?  The cabin wall looks to be maybe 3/8” 
>> thick, and the liner maybe 3/16” think, both uncored.
>> 
>> Thank you in advance.
>> 
>> Cheers,
>> Randy Stafford
>> S/V Grenadine
>> C 30 MK I #79
>> Ken Caryl, CO
>> ___
>> 
>> Thanks everyone for supporting this list with your contributions.  Each and 
>> every one is greatly appreciated.  If you want to support the list - use 
>> PayPal to send contribution --   https://www.paypal.me/stumurray
>> 


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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-15 Thread Robert Boyer via CnC-List 
I made a rectangular cutout where instruments used to be located and made a 
nice window that matches the other windows on the boat in terms of corner 
radii, etc.  Looks great!

Bob

Bob Boyer
s/v Rainy Days
C Landfall 38 (Hull # 230)
(Spending winters in the Bahamas, summers in Baltimore, and somewhere on the 
ICW in between)
blog: dainyrays.blogspot.com
email: dainyr...@icloud.com

> On Jun 15, 2020, at 10:00 AM, Matt Wolford via CnC-List 
>  wrote:
> 
> 
> That is similar to what I did.  However: 1) I had two instruments oriented 
> vertically on each side of the companionway, so I used one rectangular piece 
> of starboard for both replacement instruments on each side; 2) I filled in 
> the large holes behind the Starboard as I described in my prior e-mail note; 
> and 3) I discovered that sea foam Starboard is very close to the color of my 
> deck gel coat, so I plan to replace my white starboard pieces with sea foam 
> pieces one of these days.  Relatively low on the priority list.
>  
> From: CnC-List  On Behalf Of Dennis C. via 
> CnC-List
> Sent: Sunday, June 14, 2020 7:13 PM
> To: CnClist 
> Cc: Dennis C. 
> Subject: Re: Stus-List Glassing In Cabin Wall Holes
>  
> Touche' had LARGE instruments when I bought it.  I think they were Kenyons.  
> Anyway, I hate to admit it but I just covered the holes with StarBoard 
> sandwiches and mounted the new instruments in the StarBoard.  See:
>  
> https://drive.google.com/file/d/0B_sb5TfIENvsSEdLX1h5eXJLUUU/view?usp=sharing
>  
> Yeah, I know, kinda bad for a guy who did fiberglass and gelcoat repairs on 
> everybody else's boat.  Just never got around to filling the holes.  Mostly 
> because matching the headliner would be a pain.
> 
> --
> Dennis C.
> Touche' 35-1 #83
> Mandeville, LA
>  
> ___
> 
> Thanks everyone for supporting this list with your contributions.  Each and 
> every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
> 
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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-15 Thread Matt Wolford via CnC-List 
That is similar to what I did.  However: 1) I had two instruments oriented 
vertically on each side of the companionway, so I used one rectangular piece of 
starboard for both replacement instruments on each side; 2) I filled in the 
large holes behind the Starboard as I described in my prior e-mail note; and 3) 
I discovered that sea foam Starboard is very close to the color of my deck gel 
coat, so I plan to replace my white starboard pieces with sea foam pieces one 
of these days.  Relatively low on the priority list. 

 

From: CnC-List  On Behalf Of Dennis C. via 
CnC-List
Sent: Sunday, June 14, 2020 7:13 PM
To: CnClist 
Cc: Dennis C. 
Subject: Re: Stus-List Glassing In Cabin Wall Holes

 

Touche' had LARGE instruments when I bought it.  I think they were Kenyons.  
Anyway, I hate to admit it but I just covered the holes with StarBoard 
sandwiches and mounted the new instruments in the StarBoard.  See:

 

https://drive.google.com/file/d/0B_sb5TfIENvsSEdLX1h5eXJLUUU/view?usp=sharing

 

Yeah, I know, kinda bad for a guy who did fiberglass and gelcoat repairs on 
everybody else's boat.  Just never got around to filling the holes.  Mostly 
because matching the headliner would be a pain.


-- 

Dennis C.

Touche' 35-1 #83

Mandeville, LA

 

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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-14 Thread CHARLES SCHEAFFER via CnC-List 
G10 is a fiberglass laminate that is laid up and then cured in a press, so it's 
very stiff, fireproof, and the surfaces are smooth like formica.  I first saw 
it used to make windsurfer fins as it's very stiff.  That started in the 90's.  
The fins are usually a dull green color.

I just bought some small pieces of G10 recently from McmasterCarr.com.  Pricey, 
but damn nicely made material.  I got 1/4" thick material to raise my deck 
organizers but it turned out to be way too heavy for that purpose.  I made 
risers from PVC sheet.  I also got two 12" squares of 1/16" thick G10 material 
to use to level the camber of the coachroof under a winch or solar fan.  
Instead, I might use those under the clutches to reenforce that area.  G10 
comes in six colors now.  I bought black and the surface is very shiny.  I 
might cut out "C 34R" from the 1/4" stuff to replace the old placards.  Sweet.

Chuck S, Resolute 1989 C 34R, Pasadena Md



> On June 14, 2020 at 9:23 AM Neil Andersen via CnC-List 
>  wrote:
> 
> G10??
> 
> Neil Andersen
> 20691 Jamieson Rd
> Rock Hall, MD 21661
> 484-354-8800
> 
> -
> From: CnC-List  on behalf of Nathan Post 
> via CnC-List 
> Sent: Sunday, June 14, 2020 6:51:51 AM
>     To: cnc-list@cnc-list.com 
> Cc: Nathan Post 
> Subject: Re: Stus-List Glassing In Cabin Wall Holes
>  
> Randy,
> I just did this for a broken autopilot that was mounted in the sides of 
> my cockpit that wasn’t working.  My strategy was to use an angle grinder to 
> taper the edges of the hole back to try and get at least an inch of exposed 
> glass on an angle all around the hole.  Then I took a piece of roughly 0.1” 
> thick g10 that was bigger then the hole and glued it in behind.  First sand 
> the G10 with course grit paper, clean with acetone and then use a fast 
> setting adhesive (I used 3M 8805NS) and tape in place until set.  In your 
> case you need to get it between the liner and the deck laminate so if you 
> don’t have access from elsewhere you may need to do it in more than one 
> piece. Then just use masking tape on the back of the seam when you go to 
> laminate glass in. Once the g10 is bonded and cured you can wet lay glass 
> fabric in to fill the hole.  use slow epoxy and orienting the layers in 
> different directions. Doesn’t matter if the glass goes slightly beyond the 
> hole- you can sand it off later. When that is cured sand off areas that stick 
> out using a large orbital sander with course grit and fill areas that are not 
> thick enough with fairing compound. Sand again to 120 grit. Prime and paint 
> or gel coat to finish.
> 
> You may want to stick with a teak or starboard cover plate on the inside 
> as I think it will be harder to match the liner well and if you put 
> instruments in you may want access to wire the backside anyway.
> 
> - -
> Nathan Post
> S/V Wisper
> 
> > On Jun 13, 2020, at 11:29 PM, Randy Stafford via CnC-List 
>  wrote:
> >
> > Hello Listers,
> >
> > Today I removed a broken compass from Grenadine’s cabin wall, and a 
> teak nacelle it was in.   There’s a 4.5” circular hole in the cabin wall and 
> interior liner.  Right now I’m covering it temporarily with a teak panel.  
> Longer term I might like to glass in the holes for that and other 
> instruments, and go to more flat-panel electronic instruments.
> >
> > So, can anybody advise me on the procedure for re-glassing a 4.5” 
> circular hole in a cabin wall, and liner?  The cabin wall looks to be maybe 
> 3/8” thick, and the liner maybe 3/16” think, both uncored.
> >
> > Thank you in advance.
> >
> > Cheers,
> > Randy Stafford
> > S/V Grenadine
> > C 30 MK I #79
> > Ken Caryl, CO
> > ___
> >
> > Thanks everyone for supporting this list with your contributions.  Each 
> and every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
> >
> 
> ___
> 
> Thanks everyone for supporting this list with your contributions.  Each 
> and every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
> 
> ___
> 
> Thanks everyone for supporting this list with your contributions. Each 
> and every one is greatly appreciated. If you want to support the list - use 
> PayPal to send contribution -- https://www.paypal.me/stumurray
> 
> 


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Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-14 Thread Dave Godwin via CnC-List 
Oh yeah, I get it. Four very old B & G instruments on the port bulkhead for me.

But your solution looks fine and is completely out shown (out shined?) by the 
beautiful finish on the teak trim and hatch boards. 

https://photos.google.com/photo/AF1QipOnCfBnU2tq1-LZI01LcvVEbGZKzf2Tp0lx_7Z2 


https://photos.google.com/photo/AF1QipMYr08C0A1ezTXCCTzkQrIohP6zFtWjrPx1RoqG 


Regards,
Dave Godwin
1982 C 37 - Ronin
Reedville - Chesapeake Bay
Ronin’s Overdue Refit 

> On Jun 14, 2020, at 7:12 PM, Dennis C. via CnC-List  
> wrote:
> 
> Touche' had LARGE instruments when I bought it.  I think they were Kenyons.  
> Anyway, I hate to admit it but I just covered the holes with StarBoard 
> sandwiches and mounted the new instruments in the StarBoard.  See:
> 
> https://drive.google.com/file/d/0B_sb5TfIENvsSEdLX1h5eXJLUUU/view?usp=sharing 
> 
> 
> Yeah, I know, kinda bad for a guy who did fiberglass and gelcoat repairs on 
> everybody else's boat.  Just never got around to filling the holes.  Mostly 
> because matching the headliner would be a pain.
> 
> -- 
> Dennis C.
> Touche' 35-1 #83
> Mandeville, LA

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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-14 Thread Dennis C. via CnC-List 
Touche' had LARGE instruments when I bought it.  I think they were
Kenyons.  Anyway, I hate to admit it but I just covered the holes with
StarBoard sandwiches and mounted the new instruments in the StarBoard.  See:

https://drive.google.com/file/d/0B_sb5TfIENvsSEdLX1h5eXJLUUU/view?usp=sharing

Yeah, I know, kinda bad for a guy who did fiberglass and gelcoat repairs on
everybody else's boat.  Just never got around to filling the holes.  Mostly
because matching the headliner would be a pain.

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

On Sat, Jun 13, 2020 at 10:29 PM Randy Stafford via CnC-List <
cnc-list@cnc-list.com> wrote:

> Hello Listers,
>
> Today I removed a broken compass from Grenadine’s cabin wall, and a teak
> nacelle it was in.   There’s a 4.5” circular hole in the cabin wall and
> interior liner.  Right now I’m covering it temporarily with a teak panel.
> Longer term I might like to glass in the holes for that and other
> instruments, and go to more flat-panel electronic instruments.
>
> So, can anybody advise me on the procedure for re-glassing a 4.5” circular
> hole in a cabin wall, and liner?  The cabin wall looks to be maybe 3/8”
> thick, and the liner maybe 3/16” think, both uncored.
>
> Thank you in advance.
>
> Cheers,
> Randy Stafford
> S/V Grenadine
> C 30 MK I #79
> Ken Caryl, CO
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
___

Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-14 Thread Matt Wolford via CnC-List 
Cosmetics aside, I filled in four holes on the cabin wall facing the cockpit 
that I assume once held analog instruments.  I cut plywood circles with a hole 
saw the same size as the holes I was filling, and used West System to epoxy 
them in place.  I was then able to cut the smaller holes needed to mount newer 
instruments in the same locations.  I used pieces of thin Starboard to cover 
over the work on the outside, so I didn't need to worry about how the repair 
looks.  The end result is that my new instruments are mounted on starboard, 
which looks fine.  It looks original to the boat.  

-Original Message-
From: CnC-List  On Behalf Of Randy Stafford via 
CnC-List
Sent: Saturday, June 13, 2020 11:28 PM
To: cnc-list 
Cc: Randy Stafford 
Subject: Stus-List Glassing In Cabin Wall Holes

Hello Listers,

Today I removed a broken compass from Grenadine’s cabin wall, and a teak 
nacelle it was in.   There’s a 4.5” circular hole in the cabin wall and 
interior liner.  Right now I’m covering it temporarily with a teak panel.  
Longer term I might like to glass in the holes for that and other instruments, 
and go to more flat-panel electronic instruments.

So, can anybody advise me on the procedure for re-glassing a 4.5” circular hole 
in a cabin wall, and liner?  The cabin wall looks to be maybe 3/8” thick, and 
the liner maybe 3/16” think, both uncored.

Thank you in advance.

Cheers,
Randy Stafford
S/V Grenadine
C 30 MK I #79
Ken Caryl, CO
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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-14 Thread Dennis C. via CnC-List 
G10 is great stuff but I make up my own glass sheets.  I just lay up a
bunch of layers of glass/epoxy or glass/resin on a sheet of waxed paper.
  --
Dennis C.
Touche' 35-1 #83
Mandeville, LA
On Sun, Jun 14, 2020 at 10:55 AM Nathan Post via CnC-List <
cnc-list@cnc-list.com> wrote:

> G-10 is a common premade pultruded eglass epoxy material also called
> garolite or FR4:
>
>
> https://www.mcmaster.com/grade-g-10-garolite/multipurpose-flame-retardant-garolite-g-10-fr4-sheets-and-bars/
>
> Very handy for repairs, backing plates that don’t corrode (use 1/4” or
> thicker), replacement core material in an area you will drill through, etc.
> you can make your own material by laying up glass and epoxy on a plate
> coated with release agent but but buying it is easier and it is tightly
> dimensioned In thickness.
>
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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-14 Thread Nathan Post via CnC-List 
G-10 is a common premade pultruded eglass epoxy material also called garolite 
or FR4:

https://www.mcmaster.com/grade-g-10-garolite/multipurpose-flame-retardant-garolite-g-10-fr4-sheets-and-bars/

Very handy for repairs, backing plates that don’t corrode (use 1/4” or 
thicker), replacement core material in an area you will drill through, etc. you 
can make your own material by laying up glass and epoxy on a plate coated with 
release agent but but buying it is easier and it is tightly dimensioned In 
thickness. I keep a bunch of different thicknesses on hand. Cuts with a cut off 
wheel on the grinder or the circular saw (dulls the blade). Sand the faces 
before bonding. 
Nathan

- -
Nathan Post
S/V Wisper

> On Jun 14, 2020, at 9:26 AM, Neil Andersen  
> wrote:
> 
> 
> G10??
> 
> Neil Andersen
> 20691 Jamieson Rd
> Rock Hall, MD 21661
> 484-354-8800
> From: CnC-List  on behalf of Nathan Post via 
> CnC-List 
> Sent: Sunday, June 14, 2020 6:51:51 AM
> To: cnc-list@cnc-list.com 
> Cc: Nathan Post 
> Subject: Re: Stus-List Glassing In Cabin Wall Holes
>  
> Randy,
> I just did this for a broken autopilot that was mounted in the sides of my 
> cockpit that wasn’t working.  My strategy was to use an angle grinder to 
> taper the edges of the hole back to try and get at least an inch of exposed 
> glass on an angle all around the hole.  Then I took a piece of roughly 0.1” 
> thick g10 that was bigger then the hole and glued it in behind.  First sand 
> the G10 with course grit paper, clean with acetone and then use a fast 
> setting adhesive (I used 3M 8805NS) and tape in place until set.  In your 
> case you need to get it between the liner and the deck laminate so if you 
> don’t have access from elsewhere you may need to do it in more than one 
> piece. Then just use masking tape on the back of the seam when you go to 
> laminate glass in. Once the g10 is bonded and cured you can wet lay glass 
> fabric in to fill the hole.  use slow epoxy and orienting the layers in 
> different directions. Doesn’t matter if the glass goes slightly beyond the 
> hole- you can sand it off later. When that is cured sand off areas that stick 
> out using a large orbital sander with course grit and fill areas that are not 
> thick enough with fairing compound. Sand again to 120 grit. Prime and paint 
> or gel coat to finish.
> 
> You may want to stick with a teak or starboard cover plate on the inside as I 
> think it will be harder to match the liner well and if you put instruments in 
> you may want access to wire the backside anyway.
> 
> - -
> Nathan Post
> S/V Wisper
> 
> > On Jun 13, 2020, at 11:29 PM, Randy Stafford via CnC-List 
> >  wrote:
> > 
> > Hello Listers,
> > 
> > Today I removed a broken compass from Grenadine’s cabin wall, and a teak 
> > nacelle it was in.   There’s a 4.5” circular hole in the cabin wall and 
> > interior liner.  Right now I’m covering it temporarily with a teak panel.  
> > Longer term I might like to glass in the holes for that and other 
> > instruments, and go to more flat-panel electronic instruments.
> > 
> > So, can anybody advise me on the procedure for re-glassing a 4.5” circular 
> > hole in a cabin wall, and liner?  The cabin wall looks to be maybe 3/8” 
> > thick, and the liner maybe 3/16” think, both uncored.
> > 
> > Thank you in advance.
> > 
> > Cheers,
> > Randy Stafford
> > S/V Grenadine
> > C 30 MK I #79
> > Ken Caryl, CO
> > ___
> > 
> > Thanks everyone for supporting this list with your contributions.  Each and 
> > every one is greatly appreciated.  If you want to support the list - use 
> > PayPal to send contribution --   https://www.paypal.me/stumurray
> > 
> 
> ___
> 
> Thanks everyone for supporting this list with your contributions.  Each and 
> every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
> 
___

Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-14 Thread Neil Andersen via CnC-List 
G10??

Neil Andersen
20691 Jamieson Rd
Rock Hall, MD 21661
484-354-8800

From: CnC-List  on behalf of Nathan Post via 
CnC-List 
Sent: Sunday, June 14, 2020 6:51:51 AM
To: cnc-list@cnc-list.com 
Cc: Nathan Post 
Subject: Re: Stus-List Glassing In Cabin Wall Holes

Randy,
I just did this for a broken autopilot that was mounted in the sides of my 
cockpit that wasn’t working.  My strategy was to use an angle grinder to taper 
the edges of the hole back to try and get at least an inch of exposed glass on 
an angle all around the hole.  Then I took a piece of roughly 0.1” thick g10 
that was bigger then the hole and glued it in behind.  First sand the G10 with 
course grit paper, clean with acetone and then use a fast setting adhesive (I 
used 3M 8805NS) and tape in place until set.  In your case you need to get it 
between the liner and the deck laminate so if you don’t have access from 
elsewhere you may need to do it in more than one piece. Then just use masking 
tape on the back of the seam when you go to laminate glass in. Once the g10 is 
bonded and cured you can wet lay glass fabric in to fill the hole.  use slow 
epoxy and orienting the layers in different directions. Doesn’t matter if the 
glass goes slightly beyond the hole- you can sand it off later. When that is 
cured sand off areas that stick out using a large orbital sander with course 
grit and fill areas that are not thick enough with fairing compound. Sand again 
to 120 grit. Prime and paint or gel coat to finish.

You may want to stick with a teak or starboard cover plate on the inside as I 
think it will be harder to match the liner well and if you put instruments in 
you may want access to wire the backside anyway.

- -
Nathan Post
S/V Wisper

> On Jun 13, 2020, at 11:29 PM, Randy Stafford via CnC-List 
>  wrote:
>
> Hello Listers,
>
> Today I removed a broken compass from Grenadine’s cabin wall, and a teak 
> nacelle it was in.   There’s a 4.5” circular hole in the cabin wall and 
> interior liner.  Right now I’m covering it temporarily with a teak panel.  
> Longer term I might like to glass in the holes for that and other 
> instruments, and go to more flat-panel electronic instruments.
>
> So, can anybody advise me on the procedure for re-glassing a 4.5” circular 
> hole in a cabin wall, and liner?  The cabin wall looks to be maybe 3/8” 
> thick, and the liner maybe 3/16” think, both uncored.
>
> Thank you in advance.
>
> Cheers,
> Randy Stafford
> S/V Grenadine
> C 30 MK I #79
> Ken Caryl, CO
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each and 
> every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
>

___

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every one is greatly appreciated.  If you want to support the list - use PayPal 
to send contribution --   https://www.paypal.me/stumurray

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Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
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Re: Stus-List Glassing In Cabin Wall Holes

2020-06-14 Thread Nathan Post via CnC-List 
Randy,
I just did this for a broken autopilot that was mounted in the sides of my 
cockpit that wasn’t working.  My strategy was to use an angle grinder to taper 
the edges of the hole back to try and get at least an inch of exposed glass on 
an angle all around the hole.  Then I took a piece of roughly 0.1” thick g10 
that was bigger then the hole and glued it in behind.  First sand the G10 with 
course grit paper, clean with acetone and then use a fast setting adhesive (I 
used 3M 8805NS) and tape in place until set.  In your case you need to get it 
between the liner and the deck laminate so if you don’t have access from 
elsewhere you may need to do it in more than one piece. Then just use masking 
tape on the back of the seam when you go to laminate glass in. Once the g10 is 
bonded and cured you can wet lay glass fabric in to fill the hole.  use slow 
epoxy and orienting the layers in different directions. Doesn’t matter if the 
glass goes slightly beyond the hole- you can sand it off later. When that is 
cured sand off areas that stick out using a large orbital sander with course 
grit and fill areas that are not thick enough with fairing compound. Sand again 
to 120 grit. Prime and paint or gel coat to finish.

You may want to stick with a teak or starboard cover plate on the inside as I 
think it will be harder to match the liner well and if you put instruments in 
you may want access to wire the backside anyway.

- -
Nathan Post
S/V Wisper

> On Jun 13, 2020, at 11:29 PM, Randy Stafford via CnC-List 
>  wrote:
> 
> Hello Listers,
> 
> Today I removed a broken compass from Grenadine’s cabin wall, and a teak 
> nacelle it was in.   There’s a 4.5” circular hole in the cabin wall and 
> interior liner.  Right now I’m covering it temporarily with a teak panel.  
> Longer term I might like to glass in the holes for that and other 
> instruments, and go to more flat-panel electronic instruments.
> 
> So, can anybody advise me on the procedure for re-glassing a 4.5” circular 
> hole in a cabin wall, and liner?  The cabin wall looks to be maybe 3/8” 
> thick, and the liner maybe 3/16” think, both uncored.
> 
> Thank you in advance.
> 
> Cheers,
> Randy Stafford
> S/V Grenadine
> C 30 MK I #79
> Ken Caryl, CO
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