Ultem 1000 PEI Unfilled: Transparent Flame-Retardant High-Temperature Polymer
Published: 2026-06-12
Ultem 1000 is the foundational PEI grade — offering inherent UL94 V-0 flame retardancy without additives, excellent dielectric properties, and natural transparency (amber). The workhorse for medical devices, electrical connectors, and aerospace...
Technical Properties
| Density | 1.27 g/cm³ |
|---|---|
| Tensile Strength | 105 MPa |
| Melting Point | N/A (Amorphous, Tg 217°C) |
| Shrinkage Rate | 0.5-0.7% |
| Flexural Modulus | 3.5 GPa |
| Hdt | 200 °C at 1.82 MPa |
| Continuous Service Temp | 170 °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 Ultem 1000 | |
| RTP 2100 |
Frequently Asked Questions
Can Ultem 1000 be used for food contact?
Yes, Ultem 1000 is FDA-compliant for repeated food contact and meets USP Class VI and ISO 10993 biocompatibility standards for medical devices. The key processing requirement is thorough drying to <0.02% moisture before molding — residual moisture causes hydrolytic degradation at processing temperatures (350-400°C).
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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