| (what is: / ?) Except where noted otherwise, data are given
for materials in their standard state (at 25 °C, 100 kPa)
Ethylene tetrafluoroethylene, ETFE, a fluorine based plastic,
was designed to have high corrosion resistance and strength over
a wide temperature range. ETFE is a polymer, and its systematic
name is poly(ethylene-co-tetrafluoroethylene). ETFE has a very
high melting temperature, excellent chemical, electrical and
high energy radiation resistance properties. When burned ETFE
releases hydrofluoric acid. Chemical, mechanical, physical, and
thermal properties  ETFE is effectively the high strength
version of the other three in this group, often featuring
slightly diminished capacities in other fields by comparison.
Combustion of ETFE occurs in the same way as a number of other
fluoropolymers, in terms of releasing hydrofluoric acid (HF). HF
is extremely corrosive, and so appropriate caution must be
exercised. ETFE film is self-cleaning (due to its nonstick
surface) and recyclable. It is prone to