DuPont Tefzel® ETFE films exhibit superior mechanical toughness as well as similar chemical inertness to its Teflon® FEP and PFA cousins. Tefzel® can be processed using many of the same techinques as other thermoplastics including heat sealing, thermoforming, laminating, and die cutting. Most grades of Tefzel® ETFE are rated for continuous use at 150°C (302°F), based on the 20,000-hr criterion.
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