About

Tyvek is a brand of flashspun high-density polyethylene fibers, a synthetic material; the name is a registered trademark of [DuPont](http://www.dupont.co.uk/). The material is very strong; it is difficult to tear but can easily be cut with scissors or a knife. Water vapor can pass through Tyvek, but not liquid water, the material lending itself to a variety of applications.

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