Flexitallic Sigma® pairs the outstanding chemical resistance of PTFE with enhanced dimensional stability.


Developed for processes ranging from cryogenic temperatures to 260ºC, and suitable for sealing virtually every chemical medium across the entire pH range (0-14). Sigma® range materials contain non-stick properties that aid in an easy removal process after their usage to dramatically reduce the downtime on shutdown.

All components in the Flexitallic Sigma® range are FDA compliant.  The material’s clean nature make it ideal for use where product contamination is of concern, such as food, pharmaceuticals and electronics.

The chemical resistance and dimensional stability of the material ensures total sealing reliability and minimises fugitive emissions.

Sigma Brochure

Sigma 500 Datasheet

Sigma 511 Datasheet

Sigma 533 Datasheet

Sigma 588 Datasheet

Sigma 600 Datasheet

Flexitallic Product & Services Brochure