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Is there any polymer with a long (infinite in terms of human life-time)decay time?
Question Date: 2009-09-11
Answer 1:

Infinite, no - you leave even a strand of teflon out in the sunlight for decades, and the sun's ultraviolet rays will make it brittle and weak. There really isn't anything that can stand up to ultraviolet for long periods of time - the only reason rock stands up to it is because it's so dense.

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