Ultem PEI – (Polyetherimide)is extremely rigid, dimensionally stable and can operate at a high temperature(170℃).  It may be used for machined components used in the medical and pharmaceutical industries.
Semi-transparent with light amber color （yellowness index 79）
Excellent strength and rigidity, even at elevated temperatures
Low moisture absorption
Superior electrical properties
Rated UL V-0 
Easily machined and fabricated
FDA, USDA and USP class VI compliant

PEI Products ROD size grade:

Rods:: Diameter: 3/8″ to 3″ | Length: 8ft
Diameter: 3 1/2″ to 12″ | Length: 4ft
Tubular Bars:: OD – 3″ to 6″, 10″, 12″ | Wall Thickness >= 0.75″ | Length: 4ft
Available in Natural(amber)

PEI Product SHEET size grade:

Thickness 6mm ~90mm

PEI Products  Films size grade: 

1 mil (25 micron)
2 mil (50 micron)
3 mil (75 micron)
4 mil (100 micron)
5 mil (125 micron)
7 mil (175 micron)
10 mil (250 micron)
15 mil (375 micron)
20 mil (500 micron)
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**Any about Ultem e-mail to : x.g.chiang@gmail.com