Abstract
Ethylene tetrafluoroethylene Copolymer (ETFE) and its analog Ethylene chlorotrifluoroethylene Copolymer (ECTFE) are both deviations from the perfluorinated polymers of tetrafluoroethylene (TFE). A good question is how did ETFE and ECTFE come to be? The answer lies within the properties and applications of fluoropolymers. TFE perfluoropolymers have outstanding properties including purity but they are soft. For example aircraft and auto wires are subjected to friction forces as a result of constant movement. Rubbing against surfaces, particularly sharp edges, results in the erosion of the insulation and often cut-through, which exposes the conductor. A bare conductor may easily short causing component failure. Cookware pots and pans are subject to scratching that can quickly render them useless.
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