Anarchism is a philosophy that embodies many diverse attitudes, tendencies and schools of thought; as such, disagreement over questions of values, ideology and tactics is common. The compatibility of capitalism, nationalism, and religion with anarchism is widely disputed.
I should have been more clear. The systems where I typically see Teflon used are water systems (either automotive or household plumbing) and pneumatic systems where the tape is used on a tapered male thread. In those cases, the male thread could be tightened without the Teflon tape, in many cases without leaks.
Teflon tape is a delicate white strip of filmy material that's used to wrap plumbing pipe ends before screwing on the fittings that will attach to the pipe. The tape coats the threads of the pipe and helps form a seal with the fitting to prevent leaks.