5/16 in. (0.313) Natural Vespel High Performance Plastic Balls

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.

Vespel® is one of the highest performing engineering plastics currently available. Vespel® will not melt and can operate continuously from cryogenic temperatures to 550ºF (288ºC), with excursions to 900ºF (482ºC). Vespel® parts consistently exhibit superior performance in a variety of applications requiring low wear and long life in severe environments.