Developed for processes ranging from cryogenic temperatures to 500ºF (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.
Sigma® 500: Biaxially orientated PTFE containing hollow glass microspheres - COLOUR: Blue
Sigma® 511: Biaxially-orientated PTFE containing silica - COLOUR: Fawn
Sigma® 533: Biaxially orientated PTFE containing barium sulfate - COLOUR: Off white (pigment free)
Sigma® 588: Biaxially orientated PTFE - COLOUR: Off white (pigment free)
Sigma® 600: Developed specifically for petrochemical and chemical use. FDA compliant for both low and high bolt loads. Is non contaminating with lower creep an cold flow. A single gasket replacement for metallic and non-metallic flange applications.Download a datasheet