Engineering Plastic
HDPE
The low-cost chemical workhorse: excellent chemical resistance, food-safe grades, near-zero moisture, and easy fabrication. Low strength and stiffness.
Last verified: 2026-07-10
| PolymerChemistry / common trade name. | High-density PE |
|---|---|
| Density(g/cm³)Typical specific gravity. | 0.95 |
| Tensile(MPa)Typical tensile strength (unfilled grade). | 30 |
| Max service(°C)Typical continuous service temperature. | 80 |
| Water abs.(%)Typical 24 h water absorption. | 0.01 |
| Machinability | Good |
| Known forThe property it's usually chosen for. | Chemical resistance + low cost |
- Typical uses: tanks and fittings, cutting boards, chute liners, marine and outdoor parts.
- Broad chemical resistance and FDA-compliant grades; weldable and inexpensive.
- Low stiffness and strength; higher thermal expansion — not for load-bearing precision parts.
Other engineering plastics
Sources
- Manufacturer datasheets (typical properties for common unfilled grades)
- ASM International — Engineering Plastics (Engineered Materials Handbook)