Tyvek.

You can get it in large rolls for wrapping up your house to reduce
infiltration.

Bob Ammerman
RAm Systems

----- Original Message -----
From: "rad0" <rad0@ATTBI.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, March 27, 2003 5:21 AM
Subject: [ot]: tough fiber envelope


> what is the brand name for
>
> the tough fiber reinforced paper used for 11 x 14 shipping envelopes?
> the stuff that you cannot tear
>
> can you get this material in big sheets?
>
> thanks
>
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