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[pct-l] Re: pct-l-digest V1 #74

Mike,

  I've notice there are two types of Tyvek (colors), a grey and a white. 
I understand Tyvek is a breathable material (similar to Gore-tex). Does
it or will it keep moisture from penetrating.? Or will it allow vapor to pass 
thru while acting as an air screen.?
  What's the difference between the grey and white.? There's another 
brand type with a similar name Tveck (sp.?) is it also Du Pont.?

  Tried the JMT (N->S) late Sept 95, had to bail out at Donohue Pass
(down Rush Creek), gashed my leg bad enough to need medical attention.
Have the JMT on the plate for 99... Also note this year the snow pack is
running above normal (95 was high also), even in late in the year you may
hit a lot of deep snowpack in the passes. Check with Bill Wiggs at the
Vermillion Ranch (he logs into this List, I don't have his e-address).

   take care,


>Date: Sat, 01 Mar 1997 17:08:50 -0500
>From: mdp129@psu.edu (Mike Perry)
>Subject: [pct-l] Introduction, and Tyvek info
>
>        Hello fellow happy hikers!  I'm a student at Penn State University
>interested in hiking the entire JMT this summer, probably sometime in late
>July. It is a trip that my father has been trying to plan for quite some
>time now, and we're finding ourselves short on information.  Given the
>recent damages at Yosemite, we're concerned about trail conditions as well.
>Where do we begin?!  I know there are tons of experienced JMT hikers out
>there, so please share your knowledge and help us out however you can!
>
>Thanks and happy trails to all! 
>
>Mike
>
>PS.  For the person asking about Tyvek, it is a flash-spun fiber made from
>polyethylene.  It is perfectly safe to use, and makes a wonderful and very
>lightweight groundcover. (My friend's father makes the stuff at Du Pont)
>
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>------------------------------
>
>End of pct-l-digest V1 #74
>**************************
>
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>
    Dick & Lyn  Wix     (Where's Spring; Rochester, MN)
                 aka  "WIXeR"  AT-94  GA->ME
                       wixer@sparc.isl.net
       We'll get there,,,, when we get there.!!" - obscure

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