TEFLAT™/BLACKFLAT™ gaskets provide many advantages when compared to conventional sealing materials for knife-edge flanges:
• Require much less force than copper, significantly reducing assembly time (and saving knuckles!).
• May be used with aluminum (or stainless steel) flanges and ports.
• Unlike copper gaskets, Teflon® gaskets are reusable, if not removed from flange and kept clean (number of re-uses may vary).
• Unlike copper gaskets, Teflon® gaskets do not tarnish with exposure to air.
• Unlike copper gaskets or o-rings, Teflon® does not react with most chemicals.
• Avoids the use of grease often necessary to keep thin section o-rings registered in place during assembly, particularly for a vertical flange orientation.
• Minimizes contamination of vacuum systems, particularly important for coating applications, high purity analyses and ultra-high vacuum applications.
• Unlike thin section o-rings, rigid Teflon® gaskets self-locate against the flange lip to provide a clear confirmation of a correct seal, preventing leaks and extruded o-rings.
• Less expensive than rectangular section o-rings.