Quote:
Originally Posted by emeritus
The drums of PTFE-insulated wire that I have, bear prominent warnings about the danger of exposing them to excessively-high temperatures. I have never seen corresponding warnings on pipe thread tape, presumably because the pipe tape would not expected to be subjected to dangerously-high temperatures.
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I think you might get pressurised water or super-heated steam at dangerously high temperatures for PTFE. My conversation with the Safety Manager was in 1986 when he found out that we (chemists/materials people) were intending to use PTFE tape on connections to an autoclave which would hold water at 325'C. None of us were aware of the problem then. I think that most people in industry have picked up on the risks of PTFE by now.
B