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Old 01-06-2007, 06:14   #76
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Wood as a construction material for boats is a thing of the past given the variety of composites and adhesives available today .
However some folk just refuse to live in today's world !
Cheers , Jezza

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Old 01-06-2007, 06:18   #77
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Quote:
Originally Posted by jezza
Wood as a construction material for boats is a thing of the past given the variety of composites and adhesives available today .
However some folk just refuse to live in today's world !
Cheers , Jezza

"Exhilaration is that feeling you get just after a great idea hits you, and just before you realize what's wrong with it."
I'm imagining that someone with a "Hedley Nichol Cat"???? would probably have a cat made of wood.

Dave
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Old 01-06-2007, 06:19   #78
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Right, you are, Mark:
Nida-Core Honeycomb Structural Materials - Product Lines

You may not be able to get in on it, but they have a new users “deal”.
Nida-Core Honeycomb Structural Materials - Special Promotions
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Old 01-06-2007, 06:30   #79
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Another version of

POLYCORE -HONEYCOMB- POLYCORE LIGHTWEIGHT POLYPROPYLENE HONEYCOMB BUILDING PANELS -POLYCORE -HONEYCOMB- POLYCARBONATE HONEYCOMB POLYCORE POLYPROPYLENE HONEYCOMB POLYPROPYLENE HONEYCOMB PANELS POLYCORE POLYPROPYLENE HONEYCOMB CORE

no one has told me how to get it to hold it's shape if pulling a compound curve into it.

Foam you can get some bite into it and it can be held with chipboard screw's.

Nida/poly/ plast/core you are trying to get the screw's to bite into air.

Also on some samples I have seen some of the cells get filled with resin adding marginally to weight.

It is also prone to print through from the air contracting and expanding in hull's. Pretty pattern though.

As a flat panel internal product, i'd use it over foam anyday.

Still dearer than ply though, 2 skin's of heavier glass and resin after all.

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Old 01-06-2007, 10:39   #80
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Originally Posted by cat man do
It is also prone to print through from the air contracting and expanding in hull's. Pretty pattern though.Dave
They sell a punched-felt type of fabric to prevent this.

http://www.nida-core.com/english/nidaprod_matline.htm

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Old 01-06-2007, 14:44   #81
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Wood as a construction material for boats is a thing of the past
That maybe true in some hull designs. But wood still has it's place.
But remember, the main concern here is Sean building an extension to his cabin top. Glassed ply would still be the easiest material to do this job with.
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Old 01-06-2007, 15:28   #82
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They sell a punched-felt type of fabric to prevent this.

Nida-Core Honeycomb Structural Materials - Products - Matline

Mark
Defeat's the purpose a bit, use a light core and then put this on to suck a pile of extra resin, adding weight and no strength.

The very first breed of polyprop honeycomb came out with a thicker furry binder layer, but it was soon removed in favour of the thin scrim, I would suppose due to weight concern's

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