On 5/7/16 10:46 AM, Kevin Stover wrote: > It's plain old PTFE Teflon. > The crimp version of the same connector, which I prefer, uses a Phenolic > insulator and solder on silver plated pin so they are all over the map > on insulators. > If you go to the Amphenol website, you can look up your specific connector and find out what insulation it uses.