Sigraflex Hochdruck color: Black gasket Description: Sigraflex Hochdruck is a pure flake graphite layer of high quality (0.5mm thick) and 316 stainless steel sheet (0.05mm thick) alternate layers of composite, without any binder through a special process rolling a graphite reinforced sheet, with unique physical properties. Use environment: Sigraflex Hochdruck is designed for high load connection and high pressure sealing system. It is often used in concave and convex flange connection, and prevents the gasket from bursting at high pressure. Thickness: 1.5mm, 2.0mm, 3.0mm, 4.0mm size: 1000mm, x, 1000mm, 1500mm, x, 1500mm, see technical parameters