PAI Torlon 4203 & 4503 – Properties and Applications of PAI Torlon 4203 & 4503

The TORLON PAI grades, combining excellent retention of mechanical strength, stiffness and creep resistance over a wide temperature range with extremely low thermal expansion up to 250°C, are top-rank materials for high temperature applications.

TORLON 4203 PAI offers the best toughness and impact strength of all TORLON PAI grades. Because of its intrinsic high temperature resistance, high dimensional stability and good machinability, this extruded TORLON PAI grade is very popular for precision parts in high-tech equipment. In addition, its good electrical insulating ability provides numerous possibilities in the field of electrical components.

TORLON 4503 PAI This compression moulded material is similar in composition to TORLON 4203 PAI, and is selected when larger shapes are required.

Applications of PAI Torlon 4203 & 4503

Typical applications of Dotmar TORLON PAI include:

  • Pump components
  • Valve seals (high tech valves)
  • Bearings
  • Rollers High temperature insulators
  • Parts for electronic equipment manufacture
  • Replacement of metals and ceramics

Physical Properties of PAI Torlon 4203 & 4503

Table 1. Physical properties of Dotmar PAI Torlon 4203 & 4503

Property

Value

Specific Gravity
g/cm3

1.41

Continuous Operating Temperature
°C

250

Tensile Strength

MPa

120

Impact Resistance

Charpy KJ/m2 (Unnotched)

No Break

Impact Resistance

Charpy KJ/m2 (Notched)

10

Hardness

Rockwell M

E80

(M120)

Co-efficient of Thermal Expansion

mm/(mmxK) x 10-6
avg value 23-60°C

30

Dielectric Strength

kV/mm

24

Surface Resistivity

Ohms

>1x1013

Flammability

Oxygen Index %

45

Flammability

UL94

V0

FDA Approved

No

Available Forms of PAI Torlon 4203 & 4503

Table 2. Summary of the forms that Dotmar PAI Torlon 4203 & 4503 can be delivered.

Form

Sizes

Sheet

Thickness: 6 - 25 mm

Sizes: 305 x 1220 mm

Rod

Outside Diameter: 2.4 – 36.8 mm

Machined Parts

This information has been sourced, reviewed and adapted from materials provided by Dotmar EPP Pty Ltd.

For more information on this source, please visit Dotmar EPP Pty Ltd.

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