Ideas on securing wires inside mast? - Page 4 - SailNet Community
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post #31 of 47 Old 03-08-2012
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Re: Ideas on securing wires inside mast?

My halyards are external (I made them that way during the refit). I went with expanding foam every two feet. Solid as a rock, and I can "yank" them out whenever/if the need arises.

Worked out great (so far). I made sure not to fully fill the areas so water will drain down..
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post #32 of 47 Old 03-09-2012
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Re: Ideas on securing wires inside mast?

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Originally Posted by travlineasy View Post
Ethafoam is great stuff and I use it for lots of things, including lining my music keyboard cases, camera cases, and other things that I want to anchor in place and not have to worry with the Styrofoam beads. Never thought about using for this application, and because I just had the standing rigging replaced last summer, I don't want to undergo the expense and troubles of pulling the mast again.

Thanks for the tips,

Gary
I got a dumpster full of that stuff. You can have it but we are 5,000 miles away from each other. One thing I question, the foam seems to be open cell. This would absorb water and stay wet for a long time. Could also get salt water for the blue water sailors. Once it gets salt in it, it will stay damp, and potential corrode your mast in the areas the foam is located.
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post #33 of 47 Old 03-09-2012
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Re: Ideas on securing wires inside mast?

We also have external halyards. A marina we worked with stuffed loosely wadded black plastic trash bags down the mast at intervals as a temporary way to hold wires from banging until we could pluck the stick and do the whole retrofit project. Worked fairly well - especially for the zero cost.


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post #34 of 47 Old 03-09-2012 Thread Starter
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Re: Ideas on securing wires inside mast?

Ethafoam is a closed-cell, polystyrene foam product that does not absorb water or moisture. It is fairly rigid, tends to retain its shape and it can easily be cut with an ordinary electric knife.

Cheers,

Gary
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post #35 of 47 Old 03-09-2012
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Re: Ideas on securing wires inside mast?

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Originally Posted by travlineasy View Post
Ethafoam is a closed-cell, polystyrene foam product that does not absorb water or moisture. It is fairly rigid, tends to retain its shape and it can easily be cut with an ordinary electric knife.

Cheers,

Gary
You are correct:

"Which ETHAFOAM™ brand products are approved for use in flotation devices?
UL 1191:
The US and Canadian Coast Guards approve flotation materials for use in Personal Flotation Devices (PFDs) via the Component Recognition programs of Underwriters' Laboratories and Underwriters' Laboratories Canada, under UL 1191.

Although most ETHAFOAM™ brand foam products will meet the UL 1191 requirements, the only product in the line of ETHAFOAM products for which this certification currently is maintained is ETHAFOAM 221 sheet polyethylene foam.

This means that ETHAFOAM products meet the requirements of this rigorous testing procedure, and that ETHAFOAM 220 and ETHAFOAM 50 products are suitable buoyancy materials for use in buoyancy collar and life jacket applications."

But be carefully, apparently the dumpster full of computer packing material I have is not Ethafoam (looks just like it) as it is completely water logged--been rainning solid for the last week.

Last edited by casey1999; 03-09-2012 at 04:44 PM.
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post #36 of 47 Old 03-09-2012 Thread Starter
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Re: Ideas on securing wires inside mast?

Looks like I won't be dumpster diving in HI anytime soon. I suspect the stuff you're seeing is a form of open-cell, foam rubber, which is the same dark-grey color, but much softer and used for packing electronics. I have some of that around here as well and have used it for packing material.

Cheers,

Gary
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post #37 of 47 Old 03-09-2012
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Re: Ideas on securing wires inside mast?

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Looks like I won't be dumpster diving in HI anytime soon. I suspect the stuff you're seeing is a form of open-cell, foam rubber, which is the same dark-grey color, but much softer and used for packing electronics. I have some of that around here as well and have used it for packing material.

Cheers,

Gary
I've got both the real soft foam and the more shiny hard foam. I know the soft stuff is open cell, but I have also seen the harder shiny foam absorb water- it definitely would probably float forever (unlike the soft stuff) but still seems to absorb some water. I would be hesitant to use it long term as I could still see it holding water against the mast where it makes contact.
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post #38 of 47 Old 03-09-2012 Thread Starter
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Re: Ideas on securing wires inside mast?

When you're my age, 71, nothing is "long term." I'm hoping to get another 5 to 7 years under my belt before the body parts fail to the point where I'm a navigational hazard when sailing. Beyond that, I suspect I'll be donating the boat for a tax write-off and riding along with someone younger and smarter than myself.

Cheers,

Gary
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post #39 of 47 Old 03-09-2012
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Re: Ideas on securing wires inside mast?

I have used foam swim noodles with pretty good results. I have 7 or 8 five foot swim noodles up the mast now for 5 years now and it is so much more quiet than before. The were inexpensive $1.00 each and took some time to installing but it works for me.
Brad
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post #40 of 47 Old 03-09-2012 Thread Starter
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Re: Ideas on securing wires inside mast?

Brad,

How did you get them inside your mast?

Gary
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