Gluing to CF mast

Posted by William A. Cormack (wacormack@…>)

This winter I intend to mount a Steaming light/foredeck light combo to my mast. Can anyone tell me the procedure for doing this? From what I hear drilling a hole in the mast for the wires won’t be a problem affecting the mast’s longevity but screwing in fasteners would be. Therefore, I must glue it to the mast. What is the procedure and the recommended glue? Do I grind off the white outer finish of the mast or just rough it up?

Bill

_________________________________________________William A. Cormack, CPAPrincipal and Chief Financial OfficerWhelan Associates, LLC, a Corporate Real Estate Service Firm100 Faunce Corner Executive Center, Suite 150500 Faunce Corner RoadNorth Dartmouth, MA 02747Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828MailTo:wacormack@…

Posted by macks011 (macks04@…>)

The forestay attachment point/halyard box is an aluminum fabrication
riveted to the mast. I would consider fabricating a light bracket
and drill/tap or rivet it to the existing aluminum plate. Plenty
strong enough and you won’t have to drill the mast to secure it or
run the wire.




— In freedomyachts2003@yahoogroups.com, “William A. Cormack”
<wacormack@w…> wrote:

This winter I intend to mount a Steaming light/foredeck light
combo to my mast. Can anyone tell me the procedure for doing this?
From what I hear drilling a hole in the mast for the wires won’t be
a problem affecting the mast’s longevity but screwing in fasteners
would be. Therefore, I must glue it to the mast. What is the
procedure and the recommended glue? Do I grind off the white outer
finish of the mast or just rough it up?

Bill


William A. Cormack, CPA
Principal and Chief Financial Officer
Whelan Associates, LLC, a Corporate Real Estate Service Firm
100 Faunce Corner Executive Center, Suite 150
500 Faunce Corner Road
North Dartmouth, MA 02747
Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
MailTo:wacormack@w

Posted by Lorman, Alvin J. (ajlorman@…>)

I wanted to add a third folding mast step to my CF mast, so I got in touch with the tech service department of a major manufacturer of carbon fiber masts. The reply:

It is important that the area you are putting the mast step is not already crowded with other attachments. A general rule of thumb is to be 5 x the diameter of the screw away from anything else. So if it is a clear area on the mast it should be fine to drill holes for a step. Assuming the screw holes are not over sized.

Just to be on the safe side, I only used three of the five mounting holes on the step and also used 5200. I used pop rivets instead of screws since they spread the load better. If you look at the number of holes that are already on your mast, it is clear that a few new holes won’t bring it down onto our heads. But I do think that the extra respect we all show towards our masts is probably why we have so few problems.

If I were attaching something without mechanical fasteners, I’d use thickened epoxy since the masts are already partly epoxy.

Al Lorman
F30 Ab Initio

-----Original Message-----From: freedomyachts2003@yahoogroups.com [mailto:freedomyachts2003@yahoogroups.com] On Behalf Of William A. CormackSent: Tuesday, September 27, 2005 8:26 AMTo: Freedom 1, ForumSubject: [freedomyachts2003] Gluing to CF mast
This winter I intend to mount a Steaming light/foredeck light combo to my mast. Can anyone tell me the procedure for doing this? From what I hear drilling a hole in the mast for the wires won’t be a problem affecting the mast’s longevity but screwing in fasteners would be. Therefore, I must glue it to the mast. What is the procedure and the recommended glue? Do I grind off the white outer finish of the mast or just rough it up?

Bill

_________________________________________________William A. Cormack, CPAPrincipal and Chief Financial OfficerWhelan Associates, LLC, a Corporate Real Estate Service Firm100 Faunce Corner Executive Center, Suite 150500 Faunce Corner RoadNorth Dartmouth, MA 02747Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828MailTo:wacormack@…

Posted by Larry Powers (lapowers57@…>)

I too would like to hear about gluing fittings to the mast.

For your specific case you could also pop rivet the light to the mast rather
then screw it.

\

From: “William A. Cormack” <wacormack@…>
Reply-To: freedomyachts2003@yahoogroups.com
To: “Freedom 1, Forum” <freedomyachts2003@yahoogroups.com>
Subject: [freedomyachts2003] Gluing to CF mast
Date: Tue, 27 Sep 2005 08:26:02 -0400

This winter I intend to mount a Steaming light/foredeck light combo to my
mast. Can anyone tell me the procedure for doing this? From what I hear
drilling a hole in the mast for the wires won’t be a problem affecting the
mast’s longevity but screwing in fasteners would be. Therefore, I must
glue it to the mast. What is the procedure and the recommended glue? Do I
grind off the white outer finish of the mast or just rough it up?

Bill


William A. Cormack, CPA
Principal and Chief Financial Officer
Whelan Associates, LLC, a Corporate Real Estate Service Firm
100 Faunce Corner Executive Center, Suite 150
500 Faunce Corner Road
North Dartmouth, MA 02747
Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
MailTo:wacormack@…

Posted by lance_ryley (lance_ryley@…>)

when I went to the “Yard Sale,” one of the yard workers said that
screwing things into the mast was not as big a deal as people make
it out to be, but he offered these tips:

  1. Don’t use self-tapping screws. drill the holes, tap them, and
    then screw in.

  2. seal the hole with epoxy (preferably two-part) when doing the
    final mount for the screws. This helps maintain the mast integrity.

They seemed pretty confident that this was a superior method to pop-
rivets, though that’s how my track is attached.

I used this method to mount a combination steaming/deck light, and
I’m quite happy with the results.

— In freedomyachts2003@yahoogroups.com, “Larry Powers”
<lapowers57@h…> wrote:

I too would like to hear about gluing fittings to the mast.

For your specific case you could also pop rivet the light to the
mast rather
then screw it.

From: “William A. Cormack” <wacormack@w…>
Reply-To: freedomyachts2003@yahoogroups.com
To: “Freedom 1, Forum” <freedomyachts2003@yahoogroups.com>
Subject: [freedomyachts2003] Gluing to CF mast
Date: Tue, 27 Sep 2005 08:26:02 -0400

This winter I intend to mount a Steaming light/foredeck light
combo to my
mast. Can anyone tell me the procedure for doing this? From
what I hear
drilling a hole in the mast for the wires won’t be a problem
affecting the
mast’s longevity but screwing in fasteners would be. Therefore,
I must
glue it to the mast. What is the procedure and the recommended
glue? Do I
grind off the white outer finish of the mast or just rough it up?

Bill


William A. Cormack, CPA
Principal and Chief Financial Officer
Whelan Associates, LLC, a Corporate Real Estate Service Firm
100 Faunce Corner Executive Center, Suite 150
500 Faunce Corner Road
North Dartmouth, MA 02747
Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
MailTo:wacormack@w

Posted by n1ydy@… (n1ydy@…)

I spoke with Eric Sponberg,who was an engineer of some of the earlier cf masts
at freedom, and if I understood him correctly ,the more rouned the hole, the
less of a problem it can cause in a cf structure.

hank s/v Ladyhawk f45cc/020

Posted by Paul McFadden (pwhitmac@…>)
My Hoyt32 has a Combination Steaming/foredeck light that is fastened to the mast with 1/8th pop rivets. the wiring is led thru a very small hole as the wires look to be 16 guage or possibly smaller. the light unit is a standard model made to be screw mounted on the leading edge of any size mast with flaps on each side of the light. I think it is probably an older model Aqua Signal. Anyway, I’ve had the opportunity to check all the holes in my mast and have found absolutely NO indication of fracture, cracking, or any other potentially bad scenario. By the way, this mast was new in '98 and has the track fastened with 1/8th or possibly 3/32(?).rivets. Again, no indication of any problems with the use of the rivets.

Personally I would be more than slightly hesitant in the use machine screws/bolts, or anything that required tapping threads into the carbon fiber. I think a much better solution is the use of rivets, pop and otherwise. I’ve had considerable experience using a type of heavy duty pop rivet sometimes called a monobolt. You can get them in aluminum, steel, and stainless steel. if you have need for a really nice looking rivet/monobolt, contact Prevost Car in Quebec (the hi-end bus/motor coach builder). They have very nice polished stainless units of varying size and length. And believe me, they are STRONG!!

PWM"William A. Cormack" <wacormack@…> wrote:

This winter I intend to mount a Steaming light/foredeck light combo to my mast. Can anyone tell me the procedure for doing this? From what I hear drilling a hole in the mast for the wires won’t be a problem affecting the mast’s longevity but screwing in fasteners would be. Therefore, I must glue it to the mast. What is the procedure and the recommended glue? Do I grind off the white outer finish of the mast or just rough it up?

Bill

_________________________________________________William A. Cormack, CPAPrincipal and Chief Financial OfficerWhelan Associates, LLC, a Corporate Real Estate Service Firm100 Faunce Corner Executive Center, Suite 150500 Faunce Corner RoadNorth Dartmouth, MA 02747Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828MailTo:wacormack@…

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Posted by Alan Kusinitz (akusinitz@…>)

My understanding is rivets should be used and not screws . Of course no holes is
better. My tracks put in by freedom are riveted.
Alan F-33 Hull #51 1982

Quoting “William A. Cormack” <wacormack@…>:

This winter I intend to mount a Steaming light/foredeck light combo to my
mast. Can anyone tell me the procedure for doing this? From what I hear
drilling a hole in the mast for the wires won’t be a problem affecting the
mast’s longevity but screwing in fasteners would be. Therefore, I must glue
it to the mast. What is the procedure and the recommended glue? Do I grind
off the white outer finish of the mast or just rough it up?

Bill


William A. Cormack, CPA
Principal and Chief Financial Officer
Whelan Associates, LLC, a Corporate Real Estate Service Firm
100 Faunce Corner Executive Center, Suite 150
500 Faunce Corner Road
North Dartmouth, MA 02747
Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
MailTo:wacormack@…



Alan
SoftwareCPR
www.softwarecpr.com


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Posted by Lorman, Alvin J. (ajlorman@…>)

Paul:

Uh, why do you have a “new in '98” mast?

Al Lorman
F30 Ab Initio

-----Original Message-----
From: freedomyachts2003@yahoogroups.com on behalf of Paul McFadden
Sent: Tue 9/27/2005 7:09 PM
To: freedomyachts2003@yahoogroups.com
Cc:
Subject: Re: [freedomyachts2003] Gluing to CF mast


My Hoyt32 has a Combination Steaming/foredeck light that is fastened to the
mast with 1/8th pop rivets. the wiring is led thru a very small hole as the
wires look to be 16 guage or possibly smaller. the light unit is a standard
model made to be screw mounted on the leading edge of any size mast with flaps
on each side of the light. I think it is probably an older model Aqua Signal.
Anyway, I’ve had the opportunity to check all the holes in my mast and have
found absolutely NO indication of fracture, cracking, or any other potentially
bad scenario. By the way, this mast was new in '98 and has the track fastened
with 1/8th or possibly 3/32(?).rivets. Again, no indication of any problems with
the use of the rivets.

Personally I would be more than slightly hesitant in the use machine
screws/bolts, or anything that required tapping threads into the carbon fiber. I
think a much better solution is the use of rivets, pop and otherwise. I’ve had
considerable experience using a type of heavy duty pop rivet sometimes called a
monobolt. You can get them in aluminum, steel, and stainless steel. if you have
need for a really nice looking rivet/monobolt, contact Prevost Car in Quebec
(the hi-end bus/motor coach builder). They have very nice polished stainless
units of varying size and length. And believe me, they are STRONG!!

PWM

“William A. Cormack” <wacormack@…> wrote:

This winter I intend to mount a Steaming light/foredeck light combo to my
mast. Can anyone tell me the procedure for doing this? From what I hear
drilling a hole in the mast for the wires won’t be a problem affecting the
mast’s longevity but screwing in fasteners would be. Therefore, I must glue it
to the mast. What is the procedure and the recommended glue? Do I grind off
the white outer finish of the mast or just rough it up?

Bill


William A. Cormack, CPA
Principal and Chief Financial Officer
Whelan Associates, LLC, a Corporate Real Estate Service Firm
100 Faunce Corner Executive Center, Suite 150
500 Faunce Corner Road
North Dartmouth, MA 02747
Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
MailTo:wacormack@…


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Posted by Paul McFadden (pwhitmac@…>)
Yeah, I was wondering if anyone was gonna jump on that. Truth is, it’s kinda shrouded in mystery. The best scenario I have been able to come up with is that one of the previous owners who raced alot decided to try a spinnaker flown from the masthead without the use of any kind of a backstay arrangement. I happened to find his revised rating for the boat due to the oversized spinnaker in with the boat’s papers. I’ve tried to contact the previous owners that would know, but nobody’s talking. Bottom line tho, I come out the winner with a nice new (fairly) TPI stick, in excellent condition that nobody has screwed-up thru ignorance.

As they say, “that’s my story and I’m stickin’ to it”. One thing tho, someone who knows the true tale may see this on the board and clear up the mystery, who knows.

PWM"Lorman, Alvin J." <ajlorman@…> wrote:
Paul:Uh, why do you have a “new in '98” mast?Al LormanF30 Ab Initio -----Original Message----- From: freedomyachts2003@yahoogroups.com on behalf of Paul McFadden Sent: Tue 9/27/2005 7:09 PM To: freedomyachts2003@yahoogroups.com Cc: Subject: Re: [freedomyachts2003] Gluing to CF mast My Hoyt32 has a Combination Steaming/foredeck light that is fastened to the mast with 1/8th pop rivets. the wiring is led thru a very small hole as the wires look to be 16 guage or possibly smaller. the light unit is a standard model made to be screw mounted on the leading
edge of any size mast with flaps on each side of the light. I think it is probably an older model Aqua Signal. Anyway, I’ve had the opportunity to check all the holes in my mast and have found absolutely NO indication of fracture, cracking, or any other potentially bad scenario. By the way, this mast was new in '98 and has the track fastened with 1/8th or possibly 3/32(?).rivets. Again, no indication of any problems with the use of the rivets. Personally I would be more than slightly hesitant in the use machine screws/bolts, or anything that required tapping threads into the carbon fiber. I think a much better solution is the use of rivets, pop and otherwise. I’ve had considerable experience using a type of heavy duty pop rivet sometimes called a monobolt. You can get them in aluminum, steel, and stainless steel. if you have need for a really nice looking rivet/monobolt, contact Prevost Car in Quebec (the hi-end
bus/motor coach builder). They have very nice polished stainless units of varying size and length. And believe me, they are STRONG!! PWM “William A. Cormack” <wacormack@…> wrote: This winter I intend to mount a Steaming light/foredeck light combo to my mast. Can anyone tell me the procedure for doing this? From what I hear drilling a hole in the mast for the wires won’t be a problem affecting the mast’s longevity but screwing in fasteners would be. Therefore, I must glue it to the mast. What is the procedure and the recommended glue? Do I grind off the white outer finish of the mast or just rough it up?
Bill _________________________________________________ William A. Cormack, CPA Principal and Chief Financial Officer Whelan Associates, LLC, a Corporate Real Estate Service Firm 100 Faunce Corner Executive Center, Suite 150 500 Faunce Corner Road North Dartmouth, MA 02747 Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
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