Re: Stus-List installing plastic anchors in fiberglass

2020-06-25 Thread John Irvin via CnC-List
Hair dryer trick sounds like good advice.

Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10

From: Matt Wolford via CnC-List<mailto:cnc-list@cnc-list.com>
Sent: June 25, 2020 11:20 AM
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: wolf...@erie.net<mailto:wolf...@erie.net>
Subject: Re: Stus-List installing plastic anchors in fiberglass

I tried something different on my 34 years ago.  Most of the screws holding the 
forward hatch were getting loose and, of course, the reason was wet core 
underneath.  I drilled out all of the screw holes (oversized a bit) and dried 
the core where necessary using a trick taught to me by my West System guru.  
Take a suitably sized Tupperware container, remove the top (throw it away), and 
cut a hole in the bottom the size of a small hair dryer nozzle.  Place the 
hairdryer nozzle into the hole you cut, tape it in place with duct tape, tape 
the hair dryer contraption in place on the deck over the wet core holes, and 
let it run for a while (low heat setting will prevent it from overheating).  I 
needed to move the contraption around to dry various holes in my case.  Once 
you’re satisfied the core area is sufficiently dry, you can then repair.

What I did differently in this case was, instead of screwing back into cured 
epoxy (or using plastic anchors), I bought some stainless inserts for machine 
screws and epoxied them in place.  (Yardley product as I recall.)  When I was 
finished, I could unscrew the machine screws to remove the hatch.  Because the 
inserts were epoxied in place and isolated from the core, I didn’t worry much 
about the seal at the deck after that.  It was a lot of extra work (not sure it 
was worth it), but the forward hatch was solidly connected to the deck and I 
never had a problem.

Matt Wolford
C&C 42 Custom

From: CnC-List  On Behalf Of Dennis C. via 
CnC-List
Sent: Wednesday, June 24, 2020 6:39 PM
To: CnClist 
Cc: Dennis C. 
Subject: Re: Stus-List installing plastic anchors in fiberglass

I'd overbore the holes, coat the wood with neat epoxy (no thickener) using a 
cotton swab or equivalent then fill with epoxy thickened with microfibers.  
Redrill and use new screws same size as the original.

I don't like using thickened epoxy without coating with neat epoxy first.  You 
don't get as good a bond and you may leave gaps.

Dennis C.
Touche' 35-1 #83
Mandeville, LA
On Wed, Jun 24, 2020, 2:51 PM CHARLES SCHEAFFER via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Hi Guys,

The fiberglass sea good that covers the cabintop window and companionway slider 
on my 34R is attached with a dozen #8 x 1" wood screws.  The holes for these 
screws penetrate the balsa core of the cabintop and were sealed with white 
caulk.  There is no way to through bolt it.  I'm planning to overdrill the 
holes to 3/4" and fill with Thixo flexible epoxy and then drill the holes to 
1/4" to take plastic masonry anchors.  The SS wood screws will like these 
anchors, be removable and the core will be better protected from water 
penetration.  I'm trying to decide between using plastic masonry anchors made 
for wood screws, or screw in threaded fittings and use machine screws.   Or 
maybe I should drill and tap the epoxy and use machine screws?  Any better 
ideas?

Masonry anchors:
https://www.kimballmidwest.com/All-Products/Fasteners/Anchors/Tubular-Screw-Anchors/483072

Threaded fittings:
https://www.grainger.com/category/fasteners/thread-insert/self-locking-inserts?cm_sp=Product_Details-_-Categories_Based_on_Your_Search-_-IDPPLACAT

Thanks,
Chuck Scheaffer Resolute 1989 C&C 34R, Pasadena Md
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Re: Stus-List installing plastic anchors in fiberglass

2020-06-25 Thread Dennis C. via CnC-List
Chuck,

Yes.  Overbore, coat with neat epoxy, fill with thickened epoxy then drill
pilot hole same size or slightly larger as shaft of fastener.

Dennis C.
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Re: Stus-List installing plastic anchors in fiberglass

2020-06-25 Thread Matt Wolford via CnC-List
I tried something different on my 34 years ago.  Most of the screws holding the 
forward hatch were getting loose and, of course, the reason was wet core 
underneath.  I drilled out all of the screw holes (oversized a bit) and dried 
the core where necessary using a trick taught to me by my West System guru.  
Take a suitably sized Tupperware container, remove the top (throw it away), and 
cut a hole in the bottom the size of a small hair dryer nozzle.  Place the 
hairdryer nozzle into the hole you cut, tape it in place with duct tape, tape 
the hair dryer contraption in place on the deck over the wet core holes, and 
let it run for a while (low heat setting will prevent it from overheating).  I 
needed to move the contraption around to dry various holes in my case.  Once 
you’re satisfied the core area is sufficiently dry, you can then repair.

 

What I did differently in this case was, instead of screwing back into cured 
epoxy (or using plastic anchors), I bought some stainless inserts for machine 
screws and epoxied them in place.  (Yardley product as I recall.)  When I was 
finished, I could unscrew the machine screws to remove the hatch.  Because the 
inserts were epoxied in place and isolated from the core, I didn’t worry much 
about the seal at the deck after that.  It was a lot of extra work (not sure it 
was worth it), but the forward hatch was solidly connected to the deck and I 
never had a problem.

 

Matt Wolford

C&C 42 Custom   

 

From: CnC-List  On Behalf Of Dennis C. via 
CnC-List
Sent: Wednesday, June 24, 2020 6:39 PM
To: CnClist 
Cc: Dennis C. 
Subject: Re: Stus-List installing plastic anchors in fiberglass

 

I'd overbore the holes, coat the wood with neat epoxy (no thickener) using a 
cotton swab or equivalent then fill with epoxy thickened with microfibers.  
Redrill and use new screws same size as the original.

 

I don't like using thickened epoxy without coating with neat epoxy first.  You 
don't get as good a bond and you may leave gaps.

 

Dennis C.

Touche' 35-1 #83

Mandeville, LA

On Wed, Jun 24, 2020, 2:51 PM CHARLES SCHEAFFER via CnC-List 
mailto:cnc-list@cnc-list.com> > wrote:

Hi Guys, 

 

The fiberglass sea good that covers the cabintop window and companionway slider 
on my 34R is attached with a dozen #8 x 1" wood screws.  The holes for these 
screws penetrate the balsa core of the cabintop and were sealed with white 
caulk.  There is no way to through bolt it.  I'm planning to overdrill the 
holes to 3/4" and fill with Thixo flexible epoxy and then drill the holes to 
1/4" to take plastic masonry anchors.  The SS wood screws will like these 
anchors, be removable and the core will be better protected from water 
penetration.  I'm trying to decide between using plastic masonry anchors made 
for wood screws, or screw in threaded fittings and use machine screws.   Or 
maybe I should drill and tap the epoxy and use machine screws?  Any better 
ideas? 

 

Masonry anchors: 

https://www.kimballmidwest.com/All-Products/Fasteners/Anchors/Tubular-Screw-Anchors/483072
 

 

Threaded fittings: 

https://www.grainger.com/category/fasteners/thread-insert/self-locking-inserts?cm_sp=Product_Details-_-Categories_Based_on_Your_Search-_-IDPPLACAT
 

 

Thanks, 

Chuck Scheaffer Resolute 1989 C&C 34R, Pasadena Md 

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Re: Stus-List installing plastic anchors in fiberglass

2020-06-25 Thread Bill Coleman via CnC-List
https://www.westsystem.com/instruction-2/epoxy-basics/bonding-fasteners-hardware/

 

 

Bill

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of CHARLES 
SCHEAFFER via CnC-List
Sent: Thursday, June 25, 2020 10:13 AM
To: cnc-list@cnc-list.com
Cc: CHARLES SCHEAFFER
Subject: Re: Stus-List installing plastic anchors in fiberglass

 

Hi Dennis, 

Agree on applying neat epoxy before thickened epoxy.  It eliminates air gaps 
and extends the bond deeper into the core.  You're suggesting I pilot hole and 
screw into the cured epoxy and not use plastic anchors? 

 

Chuck S 

 

 

On 06/24/2020 6:39 PM Dennis C. via CnC-List  wrote: 

 

 

I'd overbore the holes, coat the wood with neat epoxy (no thickener) using a 
cotton swab or equivalent then fill with epoxy thickened with microfibers.  
Redrill and use new screws same size as the original. 

 

I don't like using thickened epoxy without coating with neat epoxy first.  You 
don't get as good a bond and you may leave gaps. 

 

Dennis C. 

Touche' 35-1 #83 

Mandeville, LA 

On Wed, Jun 24, 2020, 2:51 PM CHARLES SCHEAFFER via CnC-List < 
cnc-list@cnc-list.com> wrote: 

 

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Re: Stus-List installing plastic anchors in fiberglass

2020-06-25 Thread CHARLES SCHEAFFER via CnC-List
Hi Dennis,
Agree on applying neat epoxy before thickened epoxy.  It eliminates air gaps 
and extends the bond deeper into the core.  You're suggesting I pilot hole and 
screw into the cured epoxy and not use plastic anchors?

Chuck S



> On 06/24/2020 6:39 PM Dennis C. via CnC-List  
> wrote:
> 
> 
> I'd overbore the holes, coat the wood with neat epoxy (no thickener) 
> using a cotton swab or equivalent then fill with epoxy thickened with 
> microfibers.  Redrill and use new screws same size as the original.
> 
> I don't like using thickened epoxy without coating with neat epoxy first. 
>  You don't get as good a bond and you may leave gaps.
> 
> Dennis C.
> Touche' 35-1 #83
> Mandeville, LA
> 
> On Wed, Jun 24, 2020, 2:51 PM CHARLES SCHEAFFER via CnC-List < 
> cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com > wrote:
> 
> > > 
> > > 
> 
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Re: Stus-List installing plastic anchors in fiberglass

2020-06-24 Thread Dennis C. via CnC-List
I'd overbore the holes, coat the wood with neat epoxy (no thickener) using
a cotton swab or equivalent then fill with epoxy thickened with
microfibers.  Redrill and use new screws same size as the original.

I don't like using thickened epoxy without coating with neat epoxy first.
You don't get as good a bond and you may leave gaps.

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

On Wed, Jun 24, 2020, 2:51 PM CHARLES SCHEAFFER via CnC-List <
cnc-list@cnc-list.com> wrote:

> Hi Guys,
>
> The fiberglass sea good that covers the cabintop window and companionway
> slider on my 34R is attached with a dozen #8 x 1" wood screws.  The holes
> for these screws penetrate the balsa core of the cabintop and were sealed
> with white caulk.  There is no way to through bolt it.  I'm planning to
> overdrill the holes to 3/4" and fill with Thixo flexible epoxy and then
> drill the holes to 1/4" to take plastic masonry anchors.  The SS wood
> screws will like these anchors, be removable and the core will be better
> protected from water penetration.  I'm trying to decide between using
> plastic masonry anchors made for wood screws, or screw in threaded fittings
> and use machine screws.   Or maybe I should drill and tap the epoxy and use
> machine screws?  Any better ideas?
>
> Masonry anchors:
>
> https://www.kimballmidwest.com/All-Products/Fasteners/Anchors/Tubular-Screw-Anchors/483072
>
> Threaded fittings:
>
> https://www.grainger.com/category/fasteners/thread-insert/self-locking-inserts?cm_sp=Product_Details-_-Categories_Based_on_Your_Search-_-IDPPLACAT
>
> Thanks,
> Chuck Scheaffer Resolute 1989 C&C 34R, Pasadena Md
> ___
>
> 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 
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Re: Stus-List installing plastic anchors in fiberglass

2020-06-24 Thread Bill Coleman via CnC-List
I drilled mine out a bit, and pushed some thickened  epoxy in, and got some SS 
Helicoils. 

I put a bit of Tefgel on the 10-24 machine screws, screwed them into the 
Helicoils, and then pushed that into the hole. They should stay in place if you 
have the epoxy thickened enough. Worked great.

 

Bill Coleman

Erie PA

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of CHARLES 
SCHEAFFER via CnC-List
Sent: Wednesday, June 24, 2020 3:51 PM
To: CNC boat owners, cnc-list
Cc: CHARLES SCHEAFFER
Subject: Stus-List installing plastic anchors in fiberglass

 

Hi Guys, 

 

The fiberglass sea good that covers the cabintop window and companionway slider 
on my 34R is attached with a dozen #8 x 1" wood screws.  The holes for these 
screws penetrate the balsa core of the cabintop and were sealed with white 
caulk.  There is no way to through bolt it.  I'm planning to overdrill the 
holes to 3/4" and fill with Thixo flexible epoxy and then drill the holes to 
1/4" to take plastic masonry anchors.  The SS wood screws will like these 
anchors, be removable and the core will be better protected from water 
penetration.  I'm trying to decide between using plastic masonry anchors made 
for wood screws, or screw in threaded fittings and use machine screws.   Or 
maybe I should drill and tap the epoxy and use machine screws?  Any better 
ideas? 

 

Masonry anchors: 

https://www.kimballmidwest.com/All-Products/Fasteners/Anchors/Tubular-Screw-Anchors/483072
 

 

Threaded fittings: 

https://www.grainger.com/category/fasteners/thread-insert/self-locking-inserts?cm_sp=Product_Details-_-Categories_Based_on_Your_Search-_-IDPPLACAT
 

 

Thanks, 

Chuck Scheaffer Resolute 1989 C&C 34R, Pasadena Md 

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Re: Stus-List installing plastic anchors in fiberglass

2020-06-24 Thread Matt Wolford via CnC-List
There was an interesting article in Practical Sailor recently, essentially 
concluding that Gorilla Glue is as effective (and much less costly) at certain 
deck repairs.

 

From: CnC-List  On Behalf Of CHARLES SCHEAFFER 
via CnC-List
Sent: Wednesday, June 24, 2020 4:12 PM
To: cnc-list@cnc-list.com
Cc: CHARLES SCHEAFFER 
Subject: Re: Stus-List installing plastic anchors in fiberglass

 

Marek, 

I've filled holes from below using West System epoxy w 404 filler, mixed thick 
like peanut butter so you could push it up from below with a putty knife.  I 
get it filled in and add a little extra, then cover with 3M Heavy Duty Clear 
Shipping Tape to prevent sagging.  Wait till next day and remove tape and sand 
flush.   

 

Chuck S 

 

 

On 06/24/2020 4:00 PM Marek Dziedzic via CnC-List mailto:cnc-list@cnc-list.com> > wrote: 

 

 

I would be interested in the answers, as well.

 

In my case, the seahood is attached from below. 

 

I am looking for an option of injecting “something” into the existing holes 
that would not flow out immediately (one option would be to stop gravity, but 
short of jumping on Edd’s Enterprise, I see this not feasible).

 

Any suggestions would be welcomed

 

Thanks

 

Marek

 

Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986>  for Windows 10

 

From: CHARLES SCHEAFFER via CnC-List <mailto:cnc-list@cnc-list.com> 
Sent: Wednesday, June 24, 2020 15:51
To: CNC boat owners, cnc-list <mailto:cnc-list@cnc-list.com> 
Cc: CHARLES SCHEAFFER <mailto:cscheaf...@comcast.net> 
Subject: Stus-List installing plastic anchors in fiberglass

 

Hi Guys, 

 

The fiberglass sea good that covers the cabintop window and companionway slider 
on my 34R is attached with a dozen #8 x 1" wood screws.  The holes for these 
screws penetrate the balsa core of the cabintop and were sealed with white 
caulk.  There is no way to through bolt it.  I'm planning to overdrill the 
holes to 3/4" and fill with Thixo flexible epoxy and then drill the holes to 
1/4" to take plastic masonry anchors.  The SS wood screws will like these 
anchors, be removable and the core will be better protected from water 
penetration.  I'm trying to decide between using plastic masonry anchors made 
for wood screws, or screw in threaded fittings and use machine screws.   Or 
maybe I should drill and tap the epoxy and use machine screws?  Any better 
ideas? 

 

Masonry anchors: 

https://www.kimballmidwest.com/All-Products/Fasteners/Anchors/Tubular-Screw-Anchors/483072
 

 

Threaded fittings: 

https://www.grainger.com/category/fasteners/thread-insert/self-locking-inserts?cm_sp=Product_Details-_-Categories_Based_on_Your_Search-_-IDPPLACAT
 

 

Thanks, 

Chuck Scheaffer Resolute 1989 C&C 34R, Pasadena Md 

 

___ 

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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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every one is greatly appreciated.  If you want to support the list - use PayPal 
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Re: Stus-List installing plastic anchors in fiberglass

2020-06-24 Thread CHARLES SCHEAFFER via CnC-List
Marek,
I've filled holes from below using West System epoxy w 404 filler, mixed thick 
like peanut butter so you could push it up from below with a putty knife.  I 
get it filled in and add a little extra, then cover with 3M Heavy Duty Clear 
Shipping Tape to prevent sagging.  Wait till next day and remove tape and sand 
flush.  

Chuck S



> On 06/24/2020 4:00 PM Marek Dziedzic via CnC-List  
> wrote:
> 
> 
> 
> I would be interested in the answers, as well.
> 
> 
> In my case, the seahood is attached from below. 
> 
> 
> I am looking for an option of injecting “something” into the existing 
> holes that would not flow out immediately (one option would be to stop 
> gravity, but short of jumping on Edd’s Enterprise, I see this not feasible).
> 
> 
> Any suggestions would be welcomed
> 
> 
> Thanks
> 
> 
> Marek
> 
> 
> Sent from Mail https://go.microsoft.com/fwlink/?LinkId=550986 for Windows 
> 10
> 
> 
> From: CHARLES SCHEAFFER via CnC-List mailto:cnc-list@cnc-list.com
> Sent: Wednesday, June 24, 2020 15:51
> To: CNC boat owners, cnc-list mailto:cnc-list@cnc-list.com
> Cc: CHARLES SCHEAFFER mailto:cscheaf...@comcast.net
> Subject: Stus-List installing plastic anchors in fiberglass
> 
> 
> Hi Guys,
> 
>  
> 
> The fiberglass sea good that covers the cabintop window and companionway 
> slider on my 34R is attached with a dozen #8 x 1" wood screws.  The holes for 
> these screws penetrate the balsa core of the cabintop and were sealed with 
> white caulk.  There is no way to through bolt it.  I'm planning to overdrill 
> the holes to 3/4" and fill with Thixo flexible epoxy and then drill the holes 
> to 1/4" to take plastic masonry anchors.  The SS wood screws will like these 
> anchors, be removable and the core will be better protected from water 
> penetration.  I'm trying to decide between using plastic masonry anchors made 
> for wood screws, or screw in threaded fittings and use machine screws.   Or 
> maybe I should drill and tap the epoxy and use machine screws?  Any better 
> ideas?
> 
>  
> 
> Masonry anchors:
> 
> 
> https://www.kimballmidwest.com/All-Products/Fasteners/Anchors/Tubular-Screw-Anchors/483072
> 
>  
> 
> Threaded fittings:
> 
> 
> https://www.grainger.com/category/fasteners/thread-insert/self-locking-inserts?cm_sp=Product_Details-_-Categories_Based_on_Your_Search-_-IDPPLACAT
> 
>  
> 
> Thanks,
> 
> Chuck Scheaffer Resolute 1989 C&C 34R, Pasadena Md
> 
> 
> ___
> 
> 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 
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Re: Stus-List installing plastic anchors in fiberglass

2020-06-24 Thread Marek Dziedzic via CnC-List
I would be interested in the answers, as well.

In my case, the seahood is attached from below.

I am looking for an option of injecting “something” into the existing holes 
that would not flow out immediately (one option would be to stop gravity, but 
short of jumping on Edd’s Enterprise, I see this not feasible).

Any suggestions would be welcomed

Thanks

Marek

Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10

From: CHARLES SCHEAFFER via CnC-List<mailto:cnc-list@cnc-list.com>
Sent: Wednesday, June 24, 2020 15:51
To: CNC boat owners, cnc-list<mailto:cnc-list@cnc-list.com>
Cc: CHARLES SCHEAFFER<mailto:cscheaf...@comcast.net>
Subject: Stus-List installing plastic anchors in fiberglass

Hi Guys,

The fiberglass sea good that covers the cabintop window and companionway slider 
on my 34R is attached with a dozen #8 x 1" wood screws.  The holes for these 
screws penetrate the balsa core of the cabintop and were sealed with white 
caulk.  There is no way to through bolt it.  I'm planning to overdrill the 
holes to 3/4" and fill with Thixo flexible epoxy and then drill the holes to 
1/4" to take plastic masonry anchors.  The SS wood screws will like these 
anchors, be removable and the core will be better protected from water 
penetration.  I'm trying to decide between using plastic masonry anchors made 
for wood screws, or screw in threaded fittings and use machine screws.   Or 
maybe I should drill and tap the epoxy and use machine screws?  Any better 
ideas?

Masonry anchors:
https://www.kimballmidwest.com/All-Products/Fasteners/Anchors/Tubular-Screw-Anchors/483072

Threaded fittings:
https://www.grainger.com/category/fasteners/thread-insert/self-locking-inserts?cm_sp=Product_Details-_-Categories_Based_on_Your_Search-_-IDPPLACAT

Thanks,
Chuck Scheaffer Resolute 1989 C&C 34R, Pasadena Md

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Stus-List installing plastic anchors in fiberglass

2020-06-24 Thread CHARLES SCHEAFFER via CnC-List
Hi Guys,

The fiberglass sea good that covers the cabintop window and companionway slider 
on my 34R is attached with a dozen #8 x 1" wood screws.  The holes for these 
screws penetrate the balsa core of the cabintop and were sealed with white 
caulk.  There is no way to through bolt it.  I'm planning to overdrill the 
holes to 3/4" and fill with Thixo flexible epoxy and then drill the holes to 
1/4" to take plastic masonry anchors.  The SS wood screws will like these 
anchors, be removable and the core will be better protected from water 
penetration.  I'm trying to decide between using plastic masonry anchors made 
for wood screws, or screw in threaded fittings and use machine screws.   Or 
maybe I should drill and tap the epoxy and use machine screws?  Any better 
ideas?

Masonry anchors:
https://www.kimballmidwest.com/All-Products/Fasteners/Anchors/Tubular-Screw-Anchors/483072

Threaded fittings:
https://www.grainger.com/category/fasteners/thread-insert/self-locking-inserts?cm_sp=Product_Details-_-Categories_Based_on_Your_Search-_-IDPPLACAT

Thanks,
Chuck Scheaffer Resolute 1989 C&C 34R, Pasadena Md___

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every one is greatly appreciated.  If you want to support the list - use PayPal 
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