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Old 11th Feb 2019, 7:56 pm   #12
emeritus
Dekatron
 
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,316
Default Re: PTFE tape for transformer insulation

Make sure you get the wide PTFE tape: very narrow PTFE tape is now available that is wound within the grooves of the pipe thread rather than across several of them. The plumber used some when fitting a new radiator for us a couple of months ago.

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.

Last edited by emeritus; 11th Feb 2019 at 8:01 pm.
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