Material comparison
LDPE vs HDPE
Both are polyethylenes. LDPE is softer and more flexible; HDPE is stiffer, stronger and more chemical- and stress-crack-resistant — the usual pick for rigid formed parts.
LDPE vs HDPE — side by side
| LDPE | HDPE | |
|---|---|---|
| Stiffness | Low, flexible | High, rigid |
| Impact | Good | Excellent |
| Chemical / ESCR | Good | Excellent |
| Typical use | Flexible liners, cushioning | Trays, dunnage, tanks, outdoor |
Choose LDPE when…
- Flexible, softer parts and liners
- Where give and cushioning help
Choose HDPE when…
- Rigid, durable trays, dunnage and covers
- Chemical, outdoor and material-handling duty
The verdict: For rigid formed parts, HDPE is almost always the polyethylene of choice; LDPE suits softer, flexible components.
Frequently asked
Which is used for pallets and dunnage?
HDPE — its stiffness, toughness and stress-crack resistance suit trays, dunnage and material-handling parts.
Not sure which fits?
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