New Ultem* 5000B film from GE Plastics offers excellent high performance coupled with cost-effectiveness. This seems to be the solution for electrical/electronics manufacturers that have been faced with the problem of choosing between the high cost of specifying polyimide (PI) to achieve desired performance, or downgrading an application by using lower-performing polyethylene napthalate (PEN) or polyester (PET). The new GE film offers a wide choice of processing, including thermoforming, drilling, die-cutting, cold-forming, laminating, metal sputtering, and ultrasonic welding. It is heat-sealable to itself and other materials. In contrast, PI standard grades cannot be thermoformed and Aramid Paper releases dust during some processes.
This material is based on GE's Ultem polyetherimide (PEI) resin, and has high temperature and flame resistance, low moisture absorption and excellent dielectric properties, making it an excellent candidate for E/E applications such as insulating tapes and laminates, diaphragms and voice coils for loudspeakers, high temperature bar code labels and flat flexible heaters. Ultem 5000B film is available in black and amber and in gauges 25µm - 750µm.
Following are the key high-performance properties of Ultem 5000B film:
* Flame retardance: UL-94 VTM-0 listed compared to VTM-2 for standard grades of PET and PEN
* RoHS/WEEE compliance for environmental regulations
* Lower moisture absorption vs. PI and Aramid Paper, enabling the film to be used in motors or generators in high-humidity environments
* Thermal class H allowing Ultem 5000B film to be used in higher-temperature insulating systems
* Better dimensional stability than PET and PEN, making the lamination process easier
21-Nov-06 
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