PI - Polyimide 

TECASINT Ensinger Plastics

PI material, (chemically known as Polyimides) is manufactured by Ensinger in standard stock shapes for machining and is produced in sheet, rod and tube. In addition to the sintering process used to produce stock shapes, finished components can be cost effectively produced in larger quantities using the direct forming process. 

PI plastic is a non melting high temperature polymer.  Strength, dimensional stability, and creep resistance remain high even at temperatures above 260°C. Low wear rates combined with the ability to work under unlubricated conditions and high pV-rates makes it the ideal material for challenging friction and wear applications, extending lifetime and reducing maintenance costs.  Its high purity and low outgassing are needed for applications in the vacuum, space and semicon industry.

PI material properties and specifications

PI plastics offer:

  • Non melting high temperature polyimide
  • Long term thermal stability 300°C (short term up to 400 °C)
  • High heat resistance up to 470 °C (HDT/A)
  • Good cryogenic properties down to -270 °C
  • High strength, modulus and stiffness also at high temperatures over 260 °C
  • Excellent thermal and electrical insulation
  • High purity, low outgassing in vacuum conditions
  • Good machinability
  • Inherently flame retardant 

Creep Strain TECASINT at 250 °C / 482 °F

Manufactured PI Materials

PI plastic modifications are manufactured by Ensinger under the tradename TECASINT. The Ensinger TECASINT family offers the following Polyimides:
  • TECASINT 1011 – Polyimide 1000 series unfilled
  • TECASINT 1021 black – Polyimide 1000 series with 15% graphite filler
  • TECASINT 1031 black– Polyimide 1000 series with 40% graphite filler
  • TECASINT 1061 black– Polyimide 1000 series with 15% graphite/10% PTFE
  • TECASINT 2011 natural – Polyimide 2000 series unfilled
  • TECASINT 2021 black – Polyimide 2000 series 15% graphite filler
  • TECASINT 2031 black– Polyimide 2000 series 40% graphite filler
  • TECASINT 2061 black – Polyimide 2000 series 15% graphite/10% PTFE
  • TECASINT 2391 black – Polyimide 2000 series 15% MoS2
  • TECASINT 4011 natural – Polyimide 4000 series unfilled
  • TECASINT 4021 black – Polyimide 4000 series 15% graphite filler
  • TECASINT 4111 black – Polyimide 4000 series unfilled
  • TECASINT 4121 black – Polyimide 4000 series 15% graphite filler
  • TECASINT 5051 grey-green– Polyimide 5000 series 30% glass fibre
  • TECASINT 8001 yellow-brown – Polyimide 8000 series 80% PTFE 20% polymide
  • TECASINT 8061 yellow-brown – Polyimide 8000 series 60% PTFE 40% polymide

Ensinger is manufacturer and supplier of TECASINT Polyimides in the form of:

  • Polyimide rod
  • Polyimide sheet
  • Polyimide tube
  • Machined parts according to drawing
  • High volume serial parts using the direct forming process