In this episode, Host Mark Daniels takes listeners on a journey up the Polymer Pyramid, one molecular step at a time, with only mild altitude sickness. He is joined by Goodfellow's Dr. Aphrodite Tomou and Adam Sells, who somehow make polymer classification sound less like a chemistry textbook and more like a treasure hunt.

The pyramid categorizes polymers based on performance and cost, distinguishing between thermoplastics (recyclable) and thermosets (non-recyclable), as well as semi-crystalline and amorphous structures, because apparently even molecules have commitment issues. As such, the pyramid provides a practical tool for material selection, helping engineers to narrow down options by considering factors like heat resistance and mechanical properties.