But the stuff Vaneski used to patch my suit is a polymer that leaks hydrogen very easily.
"Unwise Child"
Gordon Randall Garrett
It is a multiple polymer of something-or-other which stretches very accommodatingly to a surprising expanse, and then suddenly stops stretching.
"A Matter of Importance"
William Fitzgerald Jenkins
There was also the likelihood that the carbon in the various polymer resins came from oil or coal, and fossil carbon is useless for radio-dating.
"Dead Giveaway"
Gordon Randall Garrett