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Plastic Before Plastic: How gutta-percha shaped the 19th century
27 crescit_eundo 6 8/31/2025, 4:03:30 PM worldhistory.substack.com ↗
Gutta-percha is a polymer. It's polyisoprene.
https://en.wikipedia.org/wiki/Gutta-percha#Chemistry
Perhaps the Wikipedia article would serve the discussion?
https://en.m.wikipedia.org/wiki/Gutta-percha