Specially engineered for use in the most demanding operating environments, FlatSeal™ HMF66 consists of a phlogopite mica composite with an expanded metal inlay, combining superior sealing performance with enhanced strength. The unique layered material demonstrates:

• Outstanding temperature performance for environments to 1000 °C / 1832 °F
• Wide ranging media compatibility, including aggressive and corrosive chemicals
• Extended service life
• Excellent gasket stability for optimized handling and assembly
• Electrical insulation properties, preventing the flow of electric current

FlatSeal™ HMF66 is manufactured using advanced techniques to fully bond the phlogopite mica to the expanded stainless steel metal (grade 1.4404/316L) layer. This produces a robust gasket, from which even complex gasket geometries can be formed using all common methods, including punching and cutting.