Published: April 28, 2020, 7:20 p.m.
b'
This week we talk about PET, Celluloid, and biodegradability.
We also discuss polyurethane, fungi, and shellac.
This is a public episode. If you\\u2019d like to discuss this with other subscribers or get access to bonus episodes, visit
letsknowthings.substack.com/subscribe'