Do a search on Amazon for teflon tape... 4 rolls for 5.99, 8 for 6.99, 1/2"X520". It's also called plumbers tape, thread tape, etc.... Can easily be found anywhere they sell any kind of plumbing supplies. Usually comes on a blue dispenser roll with a white pop off cover/sleeve.I just did two of the McDermott CF shafts and used painters tape and guess I'm lucky I did not have an issue. When I google PTFE tape I see everything from pipe thread on. Could someone point me to the right tape and or part number?
Thank you,
Hope that helps.