RTJ Kammprofile Gaskets A composite gasket that utilises a serrated metal core with a soft facing material The metal core is machined on each contact face with concentric serrations, providing high pressure areas This ensures the soft coating flows into any imperfections in the flange even at relatively low bolt loads The soft facing material is engineered to compress into the serrations on the core and form a thin film across the peaks creating the ideal sealing density in the grooves of the profile The result? You get a gasket that combines the benefits of soft cut materials with the advantages of seal integrity associated with metallic gaskets Expanded graphite is the most common facing material used for Camprofile gaskets However, other materials can also be used. For instance, PTFE for chemically aggressive duties and mica for high temperature services