FerrulesFerrules Back to: Standard Ferrules Ferrules Product Code: 22215 Ferrule, Vespel, 1/16" X 0.5mm Pack of 10 Price £57.00 Description Vespel® Ferrules 100% high-temperature polyimide. Stable to 350 °C. Durable, leak-tight. Graphite Ferrules Preconditioned to eliminate out-gassing. High-purity, high-density graphite. Smoother surface and cleaner edges than conventional graphite ferrules. Contain no binders that can off-gas or adsorb analytes. Stable to 450 °C. Vespel®/Graphite Ferrules 60%/40% Vespel®/graphite blend offers the best combination of sealing and ease of workability. Sealed with minimal torque, reusable, and preferred for vacuum and high-pressure uses. Stable to 400 °C. Recommended for mass spec transfer lines.