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Tefzel® ETFE (Ethylene TetrafluoroEthylene)

Tefzel is a molecular relative of Teflon, and as such, is highly chemically resistant. It has proven to be an excellent material for sealing surfaces and for applications where aggressive solvents are being used and durable tubing is necessary for the application. Tefzel is also used for threaded products, particularly in our low pressure line of products and adapters. Please note that caution must be taken when using some chlorinated solvents with Tefzel, as they may interact and degrade or swell the polymer slightly.



Temperature Range up to 80° C
Thread Strength Good
Oxygen Permeability 100cc / 100in2 * 24h * atm / mil @ 25° C
pH Range 0 - 14
Sterilization Techniques Ethylene oxide
Autoclavable? Y




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