Look at the Tyvek entry on Wikipedia.  Tyvek is polyethylene, it does not
need a plasticizer to be flexible.  The base chemical is pure and
unadulterated.

Chemicals such as fire retardants and other property modifiers can be added
by the manufacturer or processor, but whatever is added has to be charged to
the client.

Tim Vitale
Paper and Photography Conservation
Digital Facsimiles and Digital Image Restoration
Migration of Film [still] to Digital
Preservation and Imaging Consulting
Vitale Art Conservation
2407 Telegraph Avenue
#312
Oakland, CA 94609

510-594-8277
510-508-4162 cell
510-891-1602 fax
[log in to unmask]

Website: http://vitaleartconservation.com/
Resume:
http://videopreservation.conservation-us.org/tjv/vitale_long_resume.pdf
Video Preservation: http://videopreservation.conservation-us.org/ (2007)
Albumen website: http://albumen.conservation-us.org/ (2001)



-----Original Message-----
From: Museum discussion list [mailto:[log in to unmask]]On Behalf
Of Jerry Foust
Sent: Wednesday, November 02, 2011 11:18 AM
To: [log in to unmask]
Subject: [MUSEUM-L] Types of Tyvek for Museum Use


Hello,
Has anyone seen tech. evaluations of different "types" or "styles" of Tyvek
for use in museums?  I know that various archival supply resellers have
Tyvek that is advertised as "archival" quality but in what way does that
differ from the Tyvek at Lowes?  Thank you.
Jerry
--



Jerry L. Foust, Ph.D.
The Dumbarton House
2715 Q Street, NW, Georgetown
Washington, DC 20007
[log in to unmask]





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