HDPE is also made of ethylene from petroleum. The difference is that it’s significantly stronger and less flexible than LDPE
Temperature Range: -70F to 230F
Recommended Uses: Threaded and non-threaded caps and plugs, containers, bottle caps, hard hats, piping
Advantages: Excellent impact resistance and chemical resistance
Limitations: Limited temperature range, flex fatigue resistance, and strength. Limited molding precision.
Plastic Class: Thermoplastic (generally recyclable)