CleanFlex® Tyvek® / HDPE bag

CleanFlex® Tyvek® / HDPE bag

The combination of a PE bag with Tyvek® material enables the product to be sterilised using water vapour through the surface of the packaging material. As a rule, the front is manufactured from Tyvek® and the rear from HDPE; however, full Tyvek® packaging material is also possible, as is the integration of a Tyvek® window.

Plastic and rubber bungs can be sterilised using water vapour in the bag, without its subsequently having to be re-opened. The seals can be used directly.

By changing colour, a printed-on sterility indicator confirms that water vapour sterilisation has taken place.

(Tyvek® is a registered brand name of DuPont.)



  • Tyvek® of Du Pont
  • HDPE
  • LDPE


Plastic and rubber bungs, injection-moulded plastic parts, seals etc.


The bags have been specifically designed for water vapour sterilisation after filling. However, gamma irradiation is also possible.


Roger Pfister
B+K France
27502 Pont-Audemer

phone + 33 6 80 32 43 80
mobile +33 06 80 32 43 80
fax + 33 9 57 00 24 62

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