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Sigma® 511 Sheet Material (PTFE)


Sigma® 511 is a high performance biaxially orientated sheet sealing material containing PTFE with silica filler.

Colour: Pink

Standard compressibility

Strong acids (except hydrofluoric) to general chemicals

Can be used for all concentrations of sulfuric acid

Not suitable for molten alkali metals, fluorine gas or hydrogen fluoride

Approval BAM for Oxygen, EC1935, FDA, FDA Compliant, TA Luft, WRAS
Brand Sigma
Flange Face Flat, Raised
Maximum Temperature 260°C / 500°F
Media Hazardous
Minimum Temperature -200°C / -328°F
Pressure 51 Bars / 739.69 PSI
Pressure Class 150 & 300
Pressure Rating PN PN40