Which Durlon gaskets can I use for strong oxidizers?

Durlon® 9000 is designed for use in process piping and equipment exposed to strong oxidizers and highly aggressive chemicals. It is ideal for a wide range of industrial applications requiring superior chemical resistance.
This PTFE-based gasket material contains non-wicking inorganic fillers that help prevent flange face corrosion, a common issue in aggressive chemical environments. Durlon® 9000 also meets demanding fire safety standards. A 6-inch Class 300 Durlon® 9000 gasket successfully passed the API 6FA Fire Test, withstanding a flame of 875°C (1607°F) for 30 minutes and recording a leakage rate of only 1.8 ml/min, well below the allowable limit of 1200 ml/sec.