PPO/PPE Noryl: Dimensionally Stable Engineering Plastic for Electrical and Plumbing
Published: 2026-06-11
PPO/PPE (modified polyphenylene ether, trade name Noryl) offers exceptional dimensional stability, low moisture absorption (Propprose Processability Score (PPS): 6/10 (Moderate) — Based on melt temperature, shrinkage, and processing window....
Technical Properties
| Density | 1.06 g/cm³ |
|---|---|
| Tensile Strength | 65 MPa |
| Melting Point | N/A (Amorphous blend) |
| Shrinkage Rate | 0.5-0.7% |
| Flexural Modulus | 2.5 GPa |
| Hdt | 130 °C at 1.82 MPa |
| Continuous Service Temp | 105 °C |
Engineering Tool: Shrinkage & Cost Estimator
Calculate part weight, mold cavity dimensions accounting for shrinkage, and material cost — all locally in your browser.
Equivalents & Cross-References
| Equivalent / Alternate | Action |
|---|---|
| SABIC Noryl | |
| Asahi Kasei Xyron | |
| Mitsubishi Iupiace |
Frequently Asked Questions
What makes PPO/PPE unique among engineering plastics?
It has the lowest density and lowest moisture absorption of any engineering plastic, combined with excellent electrical properties and good heat resistance. It is the standard material for pump impellers, electrical switchgear, and plumbing manifolds. Its main limitation is poor chemical resistance to hydrocarbons and solvents — it is not suitable for fuel-contacting applications.
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References & Industry Standards
- ASTM International. Standard Specifications for Engineering Plastics & Thermoplastics. astm.org
- UL Prospector. Plastics & Elastomers Material Database. ulprospector.com
- MatWeb. Material Property Data for Engineering Thermoplastics. matweb.com
- ISO 1043. Plastics — Symbols and Abbreviated Terms. iso.org