Gaskets for high temperature applications
WS 3600 | WS 3662
The term Mica describes a group of minerals which have excellent fissility properties due to their silicate layer lattice. Mica has a lamellar non-fibrous structure and has been developed for manu facturing of gaskets for high temperature applications. Mica gaskets are used in the automotive sector, gas turbines, gas and oil burners, heat exchangers and in other flange connections. Mica gaskets are made from a material which consists of phlogopite mica paper and is waterproofed with a silicone binder. A special heat resis tant steel [1.4828] provides mechanical reinforcement in the form of corrugated metal ring inserts, eyelets and/or sheet reinforcement inserts. Both the media resistance of mica as well as the metallic reinforcement and eyelet elements have to be considered for application with aggressive substances. The consicerably low loss of mass during high temperature applications can be demonstrated with the thermogravimetric method. The loss of mass at 800 °C is less than 5 %.