Ultem is an amorphorous high performance polymer, which is characterised by excellent thermal properties, good chemical resistance, and exceptional dimensional stability.
Ultem polyetherimide film benefits from a combination of high temperature resistance, excellent dielectric strength and low moisture absorption.
Key properties:
- High heat resistance – Tg from 217°C to 245°C
- Low moisture absorption – up to 1.2% max.
- Dielectric strength
- Low dielectric constant – up to 3.0 at 10GHz
- Flame retardant – VTMO
- Chemical resistant
- Heat sealable
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Ultem® die cut parts |
There are a broad range of applications for Electrical insulating panels
- Speaker cones
- Pressure sensitive tapes
- Electronic component packaging
Ultem® is available from Katco Ltd in standard rolls, slit tape or die-cut components
The Standard roll availability from Katco Ltd is shown below.
| Grade | Thickness μm |
Length of 10Kg roll 610mm wide |
Yield M²/kg |
Colour |
| 1000B | 25 | 516 | 31.5 | natural |
| 1000B | 50 | 258 | 15.8 | natural |
| 1000B | 75 | 172 | 10.5 | natural |
| 1000B | 125 | 103 | 6.3 | natural |
| 1000B | 50 | 258 | 15.8 | black |
| 1000B | 75 | 172 | 10.5 | black |
| 1000B | 125 | 103 | 6.3 | black |
| 5000B | 75 | 172 | 10.5 | natural |
| 6050B | 75 | 172 | 10.5 | natural |
Short Roll Service: Ultem® is normally supplied in standard rolls, however Katco also provides short rolls from 5 linear metres long x 610mm wide.
Product Property Summary
Ultem® is a trademark of the General Electric Company