Polypropylene vs Polytetrafluoroethylene
Polypropylene and Polytetrafluoroethylene are genuine alternatives to one another — a choice somebody actually makes — and differ on 2 measured properties, density most clearly.
Polypropylene vs Polytetrafluoroethylene
Polypropylene
The lightest common plastic, and the only one that survives being bent forever — the living hinge, the food tub, and half the world's rope.
Polytetrafluoroethylene
Carbon wrapped in fluorine, which almost nothing sticks to and almost nothing attacks — the non-stick pan, the plumber's tape and the seal in the chemical plant.
| Property | Polypropylene | Polytetrafluoroethylene |
|---|---|---|
| Density | 0.895–0.92 g/cm³ | 2.15–2.2 g/cm³ higher |
| Melting point | 160–171 °C | 327 °C higher |