Sonflon 7140 is a expanded PTFE tape gasket for safe and cost-effective use in plastic and steel flanges in highly aggressive and highly pure applications. Due to its microcellular structure, Sonflon 7140 has much lower gasket relaxation and compressive creep than other PTFE gaskettapes.

It is self-adhsive and the ideal from-in-place gasket for on-site manufacturing of any required gasket shape-with on preparation, delivery time and costly off-cuts of usual punched gaskets.