Torlon® 4203L is an unreinforced, lubricated, pigmented grade of polyamide-imide (PAI) resin. It has the best impact resistance and greatest elongation of all the Torlon® grades. Torlon® PAI has the highest strength and stiffness of any thermoplastic up to 275°C (525°F). It has outstanding resistance to wear, creep, and chemicals. Torlon® 4203L resin offers outstanding electrical properties, which makes it ideal for high performance parts such as connectors, switches and relays. In addition Torlon® 4203L polyamide-imide can be used in applications such as thrust washers, spline liners, valve seats, bushings, bearings, wear rings, cams and other applications requiring strength at high temperature and resistance to wear. 
High Flow: Torlon® 4203L-HF


Segments Applications
Thermal Management Cooling & Heating Systems
Internal Combustion Engine Oil & Fuel Circuit
Body & Chassis Structural & Semi-Structural Parts
Transmission Other Components
Segments Applications
Equipment & Systems Fire Protection
Equipment & Systems Plumbing
Finishing Components Thermal Insulation
Segments Applications
Textiles & Sport Equipment Textiles & Fibers
Household Goods Power Tools & Garden
Sports & Leisure Sports & Leisure
Accessories Baby Trolley & Seat
Segments Applications
Industrial Equipment Industrial Equipment Parts
Segments Applications
Energy - Power Generation Wind
Segments Applications
Medical Devices Non Invasive Devices
Medical Devices Consumables For Medical Devices And Patients
Segments Applications
Public Transportation

Processing Method

  • Injection Molding
  • Machining
  • Profile Extrusion

Chemical categories

Chemical category Chemical family Chemical product
Thermoplastic polymers Polyamide-imides PAI (Polyamide-imide)

Region of availability

  • Africa & Middle East
  • Asia Pacific
  • Europe
  • Latin America
  • North America

Download documents forTorlon® 4203 L HF