Glass-filled PEI with higher stiffness and a lower coefficient of thermal expansion.
PEI combines high strength and rigidity with excellent electrical insulation and inherent UL94 V-0 flame retardance. The amber transparency allows visual inspection of fluid paths and fixtures. Used for IC test sockets, sterilisation trays and aircraft interior components.
| Material family | PEI — Polyetherimide (ULTEM) |
|---|---|
| Stock form | Sheet and Rod |
| Colour | Amber / black |
| Continuous service temperature | 170 °C |
| Available sizes | Sheet 8–60 mm · Rod Ø12–100 mm |
| Temperature class | Advanced Engineering |
Values are typical for the unfilled grade and are given for guidance. Request the current lot certificate for specification purposes.
| Density | 1.27 g/cm³ |
|---|---|
| Tensile strength | 105 MPa |
| Continuous service temp. | 170 °C |
| Glass transition (Tg) | 217 °C |
| Flammability | UL94 V-0 |
| Light transmission | ~ 85 % |
Send the plate size or rod length and diameter. Saw cut and squared within 48 hours of order confirmation.
Send DXF, STEP or a dimensioned PDF. Milled, turned and faced to your tolerance, inspection report on request.
Certificate of conformity with grade, colour and lot number. FDA, EU 10/2011 and ISO 10993 paperwork where the grade supports it.
Moisture barrier, edge protection and wooden case. Air, LCL and FCL shipping with full export documentation.
Unfilled polyetherimide — transparent, flame retardant and dimensionally stable to 170 °C.
Unfilled virgin PEEK — the highest specification stock shape we hold, machinable to ±0.02 mm.
Carbon-fibre reinforced PEEK with 3× the stiffness and 2× the thermal conductivity of unfilled PEEK.
Tell us the material, the size and how many pieces. If you are not sure about the material, describe the application and we will recommend one.
