I fitted a couple of bib taps for a friend and when I left them they were
vertical but I only had wodges of PTFE tape to wrap the threads with and
its really too squidgy for the job. The taps are now skewiff.

I suspect its plumbers hemp that I need, but dont have. What are suitable
alternatives that I might have kicking around (even if not strictly legal
these days)?

Tim

--
Please don't feed the trolls