PEI (Polyetherimide / Ultem®)
Amber transparent thermoplastic combining high strength, flame retardancy, and dimensional stability up to 170°C.
About PEI (Polyetherimide / Ultem®)
PEI (Polyetherimide), commonly known as ULTEM®, is an amber-colored, transparent thermoplastic with excellent high strength, rigidity, and dimensional stability. It maintains its properties at elevated temperatures and provides excellent dielectric properties across a wide frequency range. PEI is UL 94 V-0 rated at very thin wall thicknesses, making it a natural choice for aircraft interior components and electrical/electronic applications where flame retardancy is critical.
Material Usage
Aircraft interior structural components
Electrical and electronic connectors
Medical devices and surgical instruments
Food processing equipment
Fluid handling components
Lighting components
Analytical instrument parts
Material Characteristics
Maximum continuous temperature: 170°C
UL 94 V-0 flame rating at 0.016"
Excellent dielectric strength
FDA and USP Class VI compliant
Autoclave and steam sterilizable
Inherently transparent amber color
Good radiation resistance
Standard Sizes
SHEET
| Thickness / Size |
|---|
| 0.05" – 4.0" thickness |
| Standard sheet size: 12" × 48" |
| Standard and custom lengths |
ROD
| Diameter / Size |
|---|
| 0.25" – 6.0" diameter |
| Standard and custom lengths |
TUBE
| OD / Wall / Size |
|---|
| 0.5" OD x 0.375" ID x 12" length |
| 1.0" OD x 0.75" ID x 12" length |
| 1.5" OD x 1.25" ID x 12" length |
| 2.0" OD x 1.625" ID x 12" length |
| Custom OD/ID/length available |
OTHER
| Form / Size |
|---|
| Injection moulded preform blanks available |
| Custom extruded profiles: L-section, U-channel |
| FDM/3D printer Filaments |