Sichem S50

SICHEM® S50 is a gasket sheet made of biaxially oriented modified PTFE, filled with hollow glass microspheres, designed for applications where a more compressible and conformable material is required, even on worn flange surfaces. The multidirectional molecular structure and the hollow sphere filler provide the material with excellent mechanical performance, superior resistance to hot creep, and optimal dimensional stability, even under prolonged loads.

High chemical resistance: compatible with moderate acids and bases, solvents, and hydrocarbons. PTFE is not compatible with: bromine trifluoride, chlorine trifluoride, fluorine dioxide, hydrogen fluoride, molten alkali metals, elemental lithium, elemental potassium, and elemental sodium. For compatibility with the filler materials used in the Sichem range, please refer to the Chemical Compatibility List.

Superior mechanical stability: the biaxial orientation improves resistance to creep and permanent deformation.

Excellent machinability: easy to punch or CNC cut, ensuring precision even for complex geometries.

Low permeability coefficient: ideal for applications requiring long-term tight sealing.

Operating temperature: from –200°C to +260°C, depending on the type of fluid and the applied load.