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.

Temperature: Up to +288°C continuous (+482°C short term).

Key Features: 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, insulators. Unfilled. Provides maximum strength and elongation, the lowest modulus and thermal conuctivity 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 inherant 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.

Sheet Size (mm) Sheet Thickness (mm)
- 1.6 3.2 4.8 6.3 12.7 25.4 38.1 50.8
127 x 127 - - - - * * * *
254 x 127 * - - * * * * *
254 x 254 * * * * * * * *

*Denotes standard sheet availability.


Grade: SP-1 SP-21 SP-211 SP-3
Colour: Brown Black Black Black

Technical Specification:

Technical Data Sheet  - SP-1 (Unfilled)

Technical Data Sheet  - SP-21 (Graphite Filled)

Technical Data Sheet  - SP-211 (PTFE & Graphite Filled)

Technical Data Sheet  - SP-3 (MoS2 Filled)

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.

Technical Data Sheet - SINT2011 (Brown - Unfilled) - Alternative to Vespel® SP-1

Technical Data Sheet - SINT2021 (Black - 15% Graphite Filled) - Alternative to Vespel® SP-21

Technical Data Sheet - SINT2061 (Black - 10% PTFE / 15% Graphite Filled) - Alternative to Vespel® SP-211

Technical Data Sheet - SINT2391 (Black - 15% MoS2 Filled) - Alternative to Vespel® SP-3

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