TORLON® 4203, PAI, Polyamide-Imide, extruded (Electrical grade)-as manufactured by Quadrant Engineering Plastic Products is a high-performance plastic material with versatile performance capabilities and proven use in a broad range of of applications. Torlon® polyamide-imide shapes are offered in extruded, injection molded, and compression molded grades.

Torlon® 4203 extruded PAI offers excellent compressive strength and the highest elongation of the Torlon® grades. It also provides electrical insulation and exceptional impact strength. This grade is commonly used for electrical connectors and insulators due to its high dielectric strength.

Torlon® is the highest performing melt processable plastic. It has superior resistance to elevated temperatures. It is capable of performing under severe stress conditions at continuous temperatures to 500°F (260°C). Parts machined from Torlon® stock shapes provide greater compressive strength and higher impact resistance than most advanced engineering plastics. Its extremely low coefficient of linear thermal expansion and high creep resistance deliver excellent dimensional stability over its entire use range. Torlon® is an amorphous material with a Tg (glass transition temperature) of 537°F (280°C).

Quadrant EPP's extruded Torlon ®stock shapes are post-cured using the latest technology and procedures developed jointly by Amoco Performance Products and Quadrant eliminating the need for additional curing by the end user in most situations. A post-curing cycle is recommended for components fabricated from extruded shapes where optimization of chemical resistance and/or wear performance is required.

Torlon® 4203 is commonly used electrical connectors and insulators due to its high dielectric strength. It's ability to carry high loads over a broad temperature range makes it ideal for structural components such as linkages and seal rings. Torlon® 4203 is also an excellent choice for wear applications involving impact loading and abrasive wear.

Other attributes of TORLON® (PAI) (Polyamide-Imide) products include:

• Maintains strength and stiffness to 500° F (260°C)
• Minimal expansion rate to 500° F (260°C)
• Excellent wear resistance in bearing grades
• Able to endure harsh thermal, chemical and stress conditions

Engineering specifications for TORLON® 4203, PAI, Polyamide-Imide, extruded (Electrical grade) Sheet are:

Engineering Notes:

As Torlon® PAI has a relatively high moisture absorption rate, parts used in high temperature service or made to tight tolerances should be kept dry prior to installation. Thermal shock resulting in deformation can occur if moisture laden parts are rapidly exposed to temperatures above 400° F (205°C).