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Developed for use in rotating equipment, Quadrant’s Duratron T4540 PAI can be used in applications, including labyrinth seals, wear rings, bushings and bearings of all types.

The polyamide-imide is specified when larger (especially tubular) shapes are required and is claimed to meet the criteria required for labyrinth seals in a centrifugal compressor.

Key specifications

  • Low co-efficient of friction
  • Good wear properties
  • Increased dimensional stability 
  • Resistance to elevated temperatures
  • Capable of performing under severe stress conditions at continuous temperatures to 500°F (260°C)
  • High creep resistance
  • Tg (glass transition temperature) of 537°F (280°C)

Quadrant Engineering Plastic Products

Quadrant Engineering Plastic Products (QEPP) is the world’s leading manufacturer of semi-finished products made from general engineering and high-performance plastics. Quadrant also designs, develops and produces finished parts and solutions for a broad variety of applications in many different industries globally. Its product range extends from polyamide (PA), polyacetal (POM) and ultra high molecular weight polyethylene (UHMW-PE) to high-performance materials such as fluoroplastics and polybenzimidazole (PBI), which features temperature resistance to over 425C (800F) while maintaining total dimensional stability. The semi-finished products are machined or thermoformed and used in a variety of industries ranging from electronics through packaging machinery to chemical processing for applications where properties such as non-stick characteristics, abrasion resistance, dimensional stability, chemical and acid resistance or purity are extremely important.

Quadrant’s global teams of product development and applications engineers provide their customers with comprehensive advisory services. The best individual solution is sought for every customer requirement – from the choice of suitable material to optimum design of the finished product and machining of the most sophisticated materialsin state-of-the-art Technology Centres. Quadrant maintains a marketing and sales organization which is capable of pursuing new developments rapidly and efficiently worldwide. Quadrant focuses on growing markets, though many end users operate worldwide and have global requirements for materials and applications consulting.

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