Torlon rod (polyamide-imide/PAI rod) is a high-performance material with maximum service temperature of 260°C, thus offering excellent mechanical strength at elevated temperatures. PAI/Torlon rod is also known to have very good dimensional stability.

Torlon 4203 & Torlon 4301 rod

Stock shapes availability: We supply Torlon rod (polyamide-imide/PAI), Torlon 4203 rod and Torlon 4301 rod in various lengths and diameters.

Filled grades

  • Torlon 4203 rod – Standard grade with excellent electric properties (Yellow-ochre)
  • Torlon 4301 rod – Rubbing grade with high resistance to friction and wear (Black)
  • Torlon 5530 – Mechanical strength and dimensional stability improved grade by containing glass fibre (Khaki-gray)
  • Torlon 520HR
  • TI5013
  • TI5031

Also available: Polyamide-imide Sheet.

Application examples

  • Aerospace
  • Applications in high energy radiation
  • Applications where wear and friction are required
  • Bearing cages
  • Chip nest and sockets
  • Contactors
  • Devices in high-tech machinery
  • Electrical and electronic devices (high-temperature electrical connectors etc.)
  • Labyrinth seals
  • Metal and related industries
  • Semiconductor nests and sockets
  • Sliding parts

Key benefits

  • High toughness and impact strength at elevated temperatures (Maintain strength and stiffness to 260ºC (500ºF))
  • Minimum expansion rate 260ºC (500ºF)
  • Excellent wear resistance in bearing grades
  • Able to endure harsh thermal, chemical and stress conditions

Machinability: 5 and above


*Machinability index 1-10 (1 = easiest)



Ochre Yellow