Polyethylene

Polyethylene is a low-cost thermoplastic polymer used in a variety of applications.  Echo Engineering specializes in catalog and custom LDPE & HDPE products used mainly by automotive and fluid power manufacturers for shipping protection applications.

LDPE is made of ethylene from petroleum. It’s flexible, low cost, and generally easy to mold.….

Temperature Range: -70F to 158F

Recommended Uses: Threaded and non-threaded caps and plugs, containers, and packaging film

Advantages: Excellent impact resistance and chemical resistance, remains flexible

Limitations: Poor temperature range and strength. Limited molding precision.

Plastic Class: Thermoplastic (generally recyclable)

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)