The sealing material FKM-based contains the materials FKM and PTFE and can be used in the temperature range between -20 °C and +200 °C.
The sealing material FKM system is suitable for some flame-resistant liquids type HFD phosphoric ester, such as Ultra Safe of the 1000 series.
FKM-based means that the basic material is FKM in combination with other compatible materials such as PTFE.