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-3 is 15% moly-filled (molybdenum disulfide solid lubricant) for wear and friction resistance in vacuum and other moisture-free environments where graphite actually becomes abrasive. Typical applications of Vespel SP-3 include seals, bushings, bearings, gears, and other wear surfaces in outer space, ultra-high vacuum or dry gas applications. 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-3 Data Sheet
VESPEL® IS WIDELY USED FOR: |
PERFORMANCE CHARACTERISTICS: |
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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 couplingsASTM-D 6456-99 Ty 3 | Specifications: |
High performance bearings and bushings | ASTM-D 6456-99 Ty 3 |
Locking fasteners for aerospace | AMS 3644 Class 5 |
Pivot bushings on unison ring | Â Mil-R-46198 Type 3 |
Vespel® is a registered trademark of Dupont