UPI (Ultra-high-performance polyimide)


Aromatic polyimides are used on a wide range of fields: aerospace, automobile, electronic application, because of its extraordinary properties, e.g., good mechanical properties, great heat resistance, electric insulation, and solvent resistance.

8000 series is a stock shape molded from biphenyltetracarboxylic dianhydride (BPDA) base polyimide which is synthesized in UBE Industries.

This polyimide shows ultra high heat resistance and low water absorption. Especially, its heat deflection temperature is around 480°C which is the highest level value of all plastics.

Typical properties of UPI

Item Condition Standard Unit Property
Glass transition temperature: Tg - DSC °C ND
Tensile strength 23°C ISO 527 MPa 100
Tensile strain at break
23°C ISO 527 % 2.0
Flexural strength 23°C ISO 178 MPa 190
Flexural modulus 23°C ISO 178 GPa 7.0
Charpy notched impact strength
23°C ISO 179 kJ m-2 1.5


UPI - Stock shapes

UPI | Compression molding

SCM8000 | UPI


Stock shape of 100% UPI

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