Non-metallic gaskets belong mostly to the category of gaskets. Flat gaskets in turn belong predominantly to the static seals and are usually installed in apparatus or pipeline construction as a sealing element between two flanges.

Non-metallic gaskets are stamped or cut from the plate using different materials such as fiber composites, graphite, PTFE and elastomers. Special shapes and constructions are possible.

Non-metallic gaskets are used in all common standard flanges such as tongue and groove flanges, fore / aft flanges or flanges with a smooth sealing strip. TA Luft 2002 (VDI 2440 / VDI 2200) is fulfilled in almost all IDT sealing elements. In addition, a computational proof of compliance with the leakage criterion according to VDI 2290 is possible.