O-rings are used for sealing of various shafts, housings and flanges. Materials could be NBR, EPDM, Viton, Kalrez and other. In addition to rubber made O-rings we sell chemical resistant FEP and PFA O-rings, which inner part is made either from Silicone or Viton rubber material and is coated with a thin chemical resistant FEP or PFA polymer on the outside.
FEP encap -60°C - +205°C (short durations +260°C)
PFA encap -60°C - +260°C (short durations +300°C)
75-90 Shore A for core Silicone
90-95 Shore A for core Viton