Vespel® Sheet

Vespel® Sheet

Vespel® sheet is a collection of highly durable polyimides combining the best characteristics typically found in plastics, metals and ceramics. They are highly resistant to wear, creep and have extremely high operating temperatures.

Key Features

  • Temperature: Up to +288°C continuous (+482°C short term).
  • Outstanding wear resistance and easily machinable.
  • Low thermal and electrical conductivity.
  • Withstands loads at high temperatures.


Vespel® Grade Application Composition
SP-1 Mechanical and electrical parts at elevated temperatures. Valve seats, seals and insulators. Unfilled. Provides maximum strength and elongation, the lowest modulus and thermal conductivity and optimum electrical properties.
SP-21 Lubricated or non-lubricated, low friction and wear applications. Valve seats, seals, bearings, washers, seal rings. 15% graphite filled. Provides enhanced inherent wear resistance and improves long term thermal stability.
SP-211 Low friction and wear applications in moderate temperature and PV environments. Bearings (bushings and washers). 10% PTFE, 15% Graphite filled. Provides the lowest static friction.
SP-3 Friction and wear applications in vacuum or inert gases. Bearings, piston rings and seals. 15% MoS2 filled. Provides the best wear performance in dry environments.


Also available: Vespel® Rod and Vespel® Tube.

Technical Specification:
Vespel® is a registered trademark of DuPont™

Vespel® Alternatives

We also supply a number of alternatived to Vespel®. The following grades are our most common, with more available upon request.

Recently Viewed