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Tear Strength and Puncture Resistance

The tough, continuous fibers of DuPont™ Tyvek® helps to protect package integrity from penetration by objects outside the package and from product breakthrough even from the sharp edges of many surgical devices.

Elmendorf Tear (MD) Test Results

Per ASTM D1424 and DIN EN 21974. Elmendorf Tear measures the force required to propagate an initiated tear from a cut or a nick. MD signifies machine direction. The higher the value, the less likely a material will tear under force.

Because Tyvek® is up to eight times stronger than medical grade papers of equal or greater basis weight, it resists punctures and tears that could contaminate a sterilized device and compromise the entire sterile field.

Exceptional Resistance to Breakage
Tyvek® is an extremely flexible packaging material that won’t break or tear as easily as medical-grade papers.


Elongation (MD) test results.

Per ASTM D5035 and DIN EN ISO 1924-2. Sample length 5 in. (13 cm), rate of extension (ROE) 2 in./min (5 cm/min). Elongation is the measure of the extent a substrate will stretch before it breaks. MD signifies machine direction. The higher the value, the more a package will stretch before it breaks.