The sealing material FKM-based contains the materials FKM and PTFE and can be used in a temperature range from -20 °C to +200 °C.
The sealing material FKM system is suitable for some fire-resistant fluids type HFD-phosphoric acid ester, such as Ultra Safe of the 1000 series.
FKM-based means that FKM is used as the base material together with other compatible materials such as PTFE.