Subject: baidarka R: Nylon (deck) material
From: Stefano Moretti (stmoretti@tin.it)
Date: Thu Jan 25 2001 - 04:02:31 EST
Nylon (polyammide) is intrinsecally more elastic fiber. Mooring ropes are
made of this material and also fishing lines, which are expected to give
approx. 30% before rupture .
Polyester is non stretchable, with high quality stuff such as "spectra"
extending in the range of 1-2%.
Urethane is only for waterproofing.
Stefano
----- Original Message -----
From: <RCH3149@aol.com>
To: <baidarka@lists.intelenet.net>
Sent: Tuesday, January 23, 2001 6:45 PM
Subject: baidarka Nylon (deck) material
> I quote Ralph Diaz (from a boat review):
> << Gone is the Cordura that had been the mainstay of Feathercraft decks
for
> years. In its place is the same deck material introduced last year in the
> Khatsalano. It is Poly-tech, a 420-denier nylon with a top 4.5 oz.
urethane
> embossed coating and a 1.5 oz. urethane undercoating. The material is
> dimensionally stable (read: doesn't shrink or stretch). >>
>
> Did not testing and experience in use by baidarkonauts establish that
nylon
> is dimensionally unstable (with changes in temperature and / or humidity),
> while polyester is stable? Could the stability in nylon example above be a
> function of effective waterproofing by way of the urethane coating?
>
> Ralph Hoehn
>
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