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

Sponsored by Dotmar EPP Pty LtdMar 13 2008

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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Dotmar EPP Pty Ltd. (2019, April 29). PAI Torlon 4203 & 4503 – Properties and Applications of PAI Torlon 4203 & 4503. AZoM. Retrieved on June 17, 2021 from https://www.azom.com/article.aspx?ArticleID=4096.
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Chicago
Dotmar EPP Pty Ltd. "PAI Torlon 4203 & 4503 – Properties and Applications of PAI Torlon 4203 & 4503". AZoM. https://www.azom.com/article.aspx?ArticleID=4096. (accessed June 17, 2021).
Harvard
Dotmar EPP Pty Ltd. 2019. PAI Torlon 4203 & 4503 – Properties and Applications of PAI Torlon 4203 & 4503. AZoM, viewed 17 June 2021, https://www.azom.com/article.aspx?ArticleID=4096.