TORLON® 4435

TORLON® 4435: high‑modulus tribological PAI for severe service

A tribological grade optimized for load and speed

TORLON® 4435 is a polyamide‑imide grade engineered with a proprietary blend of graphite, carbon fiber and PTFE. This formulation provides very low friction and wear under high pressure‑velocity (PV) conditions, outperforming standard wear grades at elevated loads and speeds.

Low thermal expansion and dimensional stability

The material features a very low coefficient of thermal expansion, enabling tight tolerances across wide temperature ranges and repeated thermal cycling.

Thermal capability and durability

TORLON® 4435 maintains stiffness, creep resistance and tribological performance from cryogenic temperatures up to approximately 275 °C, supporting long service life in demanding applications.

Typical applications

• sliding vanes and thrust washers
• high‑performance bushings and rings
• piston and sealing components

• Semi-finished product manufacturer : Drake Plastics
• Raw material supplier : Syensqo
• Minimum thermal resistance (in °C) : -196
• Maximum thermal resistance (in °C) : 280
• Mechanical resistance traction module (in MPa) : 93
• Mechanical resistance compression module (in MPa) : 8550
• Mechanical resistance constraint compression (in MPa) : 138
• Pressure-velocity limit (PV) : Medium
• Low friction and wear coefficient : Very Low
• Wear resistance : Very Good
• Electrical conductivity : Insulative
• Chemical resistance : Good
• Polymer name : Polyamideimide
• Polymer abbreviation : PAI
• Mechanical resistance (in MPa) : High
• Continuous thermal resistance (in °C) : 220