ISO 9001:2008Â Certified
Material Description
Vespel® is a high performance polyimide material which is formed from resin manufactured only by DuPont.  Polyimide materials are characterized by a ring-shaped molecular structure containing nitrogen and because of it’s high-performance polyimide offers a broad combination of temperature resistance, chemical resistance, mechanical toughness, natural lubricity, wear-resistance & insulation properties. Vespel® is one of the highest performing engineering plastics currently available.  Vespel® will not melt and can operate continuously from cryogenic temperatures to 550°F (288°C), with excursions to 900°F (482°C).  Vespel® parts consistently exhibit superior performance in a variety of applications requiring low wear and long life in hostile environments.
Vespel® SP-211 has 10% PTFE and 15% graphite by weight added to the base resin for the lowest coefficient of friction over a wide range of operating conditions. It also has excellent wear resistance up to 300°F (149°C). Typical applications include sliding or linear bearings as well as many wear and friction uses listed above. Product listing does not imply any formal relationship between Professional Plastics and DuPont. DuPont certifications are non-transferable therefore material is provided with Professional Plastics certifications.
Vespel® SP-211 Data Sheet
VESPEL® IS WIDELY USED FOR: |
PERFORMANCE CHARACTERISTICS: |
|---|---|
| Semiconductor and material handling machinery | Long term performance at temperatures up to 260°C (500°F) |
| Chip test sockets | Outstanding sealing characteristics when mated against metals |
| Wafer clamping rings | Excellent unlubricated bearing and wear properties (bearing grades) |
| Valve seats and sealing applications | Good electrical insulating properties (unfilled grades) |
| Spline couplings | Â Meets ASTM-D 6456-99 Ty 2, Class 1 |
| High performance bearings and bushings | Â Meets AMS 3644 Class 2 |
| Locking fasteners for aerospace | Â Meets Mil-P-46198 Type 2, Class |
| Pivot bushings on unison ring |
Vespel® is a registered trademark of Dupont