Re: [Paddlewise] Re: Sleeping bag liners-VB

From: Dave Kruger <dkruger_at_pacifier.com>
Date: Tue, 20 Oct 1998 15:03:05 -0700
Lloyd Bowles wrote:

> According to my MEC catalogue, they [vapor barrier liners]
> are made of PU-coated nylon [polyurethane-coated nylon]. I may
> get around to buying some or I may simply use some 4 mil plastic & duct
> tape & mutter about the feel & sound of it.

I agree, plastic is cheap, and apropos for the very few times I might
use a VBL.  Probably more susceptible to puncture than fabric, though.

Another poster (Rich Mitchell <mitchelr_at_ucs.orst.edu>) mentioned that PU
coatings will eventually emulsify if kept wet and warm (and, in contact
with the oils, acids, etc., from body perspiration?).  This jives with
my experience with various items of PU-coated raingear, over the years. 
I don't know the exact mode of degradation, but the PU coatings
definitely fall apart within a couple years of frequent use.  Anybody
(beyond Rich) noticed this with VBL's?

Rich also claimed to have good luck with silicone-coated fabric as a
VBL, and referenced some Stephenson-manufactured gear, I think.  I am
unfamiliar with the properties of silicone-coated fabrics, and would not
know where to get them.  Anybody know?

-- 
Dave Kruger
Astoria, OR


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Received on Tue Oct 20 1998 - 15:02:26 PDT

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